I love to "beaker full of mystery mud" videos. Granted, they are messy, and a ton of work (which I appreciate) but I just love mentally running through the checklist of what's going on, and keeping track of where each kind of metal is in the process. Thanks, Sreetips. Your work is very appreciated.
I love the anode filters/stock pot/paper filter storage videos. It's like cashing in your savings. Also, I was thinking a stannous test on the remaining solutions should give a good idea if all of the PGMs have dropped out of solution.
YES another 9 part siver cell anode basket series 😂 looking forward to it, and you taking your learnings from the last series! Something very satisfying about recovering value from "waste" materials
I've watched every single video in your library and I must say Mr Sreetips, this is so far, the cleanest most well compartmentalized and filter basket recovery you've ever done. I'm glad to see that my suggestion to dissolve the slimes from the anode filter fabric was well received and worked flawlessly. Another amazing trip to Mr Sreetips Laboratory.
Good evening Sreetips, I've been looking forward in watching your new anode basket series. The colors amaze me just as much as the individual reactions during the different processes. So cool.
What I want to know is how much scrap gold, gold filled, and sterling sliver have you processed to get to this point? I am assuming the average hobbyist gold refiner would never accumulate enough silver "slimes" to make this worth while. Very nice that you are working through the process so we all can learn from it! Thanks!
Thank you for another great video❤ DMG is great reagent to drop Pd, only redissolving this is a mess. You can dissolve it in sodium hydroxide (11.6g of DMG + 8.0g NaOH). Such solution sometimes gives false white precipitate, which redissolve back when stirred (solution must be acidic, and cold od contain nitric). This way you can dissolve 100g of DMG per liter, with all dissolved, which is enough to precipitate ~~20-25g of Pd. And best is to drop silver first, I did not seen part 2 yet, but know this from my errors. Please be very carefull with Pd-DMG im AR, from my expierience it almost everytime run away (or trying) on this process
I was waiting for you to make this video since you put a second silver cell on line!! I love your anode filter basket recovery series videos!! To turn something referred to as slime and make treasure from it is awesome!!! Sir, stay safe, keep the great videos coming and tell the Mrs we said hi!!!
24:50 I just wanted to point out the difficulty in seeing what's going on inside the beaker because of the reflection of the White Corning Glass casserole dish and though I doubt you can find these in Black I wonder if there's a way you could darken then to cut down on the reflection maybe a black porcelain paint or something like a motor/engine paint or another type of coating that is heat resistant because that would make it so much easier to see what's going on inside the beakers
Thank you Sir! It’s a messy job but someone has to do it. Submerge that sieve then agitate and finish with a few repetitive dunking motions. Looking forward to the next episode! 👍👍🤟
I couldn't help but laugh when the giant beaker came into frame. Just nice little kitchen sized pots for the distilled water and anode's then BOOM giant beaker lol.
Hi Mr Sreetips. Your refining videos are the highlight of my UA-cam viewing. I look forward to your anode filter and stockpot treatments the most. I am a former RAAMC lab tech, and a chemistry nut. Below is a suggested way for separating the old Ag shot from the slimes. It may make separating easier and cheaper. Equipment: 1-2 gallon sealable bucket. Skimmer or slotted spoon. Strainer. Distilled water. Procedure: 1. When replacing the spent Ag anode filters, instead of storing them for later, discard the slimes/shot, and wash the filters into a sealable bucket. Add some distilled water to keep hydrated and to dilute any solutes. You could store the filters under water separately for later. 2. Periodically agitate the bucket to scour off any slime on the shot. Allow to settle. 3. Before adding the next batch of spent anodes to the storage bucket: a./ decant off the liquid in the bucket for Ag cementing ; b./ scoop out the shot in the bottom of the bucket with a skimmer/slotted spoon; c./ wash off any slimes through a strainer back into the bucket. Reuse the shot. 4. Keep repeating steps 1 to 3 until you feel that you have enough slimes to treat. This should: 1. Make the separation of shot from slimes easier, and 2. Preventing the occurrence of PGM aerosols by keeping under water. Thanks again for your commitment to refining. Regard Matt
What I would do sreetips is put the sludge in the strainer and put it in your ultrasonic cleaned with hot distilled water the vibrations should loosen up the mud from the big pieces of silver
Wonder would it be possible to put the silver shot in a type of ultra-sonic cleaner with distilled water to remove the "slime" and "sludge"? If possible, it could save a ton of time and manual labor? Great video
A modern day alchemist enlightening the masses with his art and training future refining masters such as your self sir thank you for your videos and have a good day.
This is easily the best start you've ever made to a PGM recovery/refining series. Looks promising with a potentially bankable amount of Pd metal out of the dmgH complex there.
A thought about washing the shots. Keep the liquid that you shipon of and run the not settled solids and mud through the strainer, to the second beaker, Lett the liquid settle in the second beaker and shipon the liquid back to the first beaker and stir up the solid and mud and run it through the strainer until the shots is free. That way you do not add more liquid to the waste bucket.
I can see where a mini trommel would come in handy for cleaning the silver shot back off. A drum of wire and mesh (Stainless Steel) that sits suspended in a large container like a tote or storage box and a little hand crank or small motor and spin it while half submerged in water. I assume it could be used to clean off a lot of things and not just silver shot. Can have it going off in the background and it might not be as messy.
I was wondering if you were going to try to remove the silver shot this time around... seemed like a pain but it's worth it in the end..Think a larger sized mesh or something like a pasta colander would of been an advantage or let too much silver through? That mud looked like clay.
It’s fascinating to watch you work. The colors of the solutions and fumes created are quite vivid. What’s left over in the sludge after you finish pulling out the gold and platinum group metals? Nickel and copper?
Very interesting, as usual. An interesting synthesis would be: Which acid dissolves which base metals and also, what combination of acid can dissolve the precious metals. Thanks to you. Sylvain
11:03 maybe it would help to place all of the slimes inside a window-screen "envelope" and put that inside an ultrasonic cleaner filled with distilled water. Run that for about 10-15 minutes; pour the mud off into a beaker; then re-run with fresh distilled water 2-3x in order to get clean silver-cell shot inside the screen & fully-saparated PM muds in the wash-water/beaker. (still takes some time, but a LOT less manual labor)
So jewelry is basicly gold, silver , plat/palad rhodium.. ... then copper /steel / lead.... and stones?.... is there any metal that turns up that that is odd or you wont touch ... ? Or just jewlery weirdness you have come across?....
Get yourself some classifiers like those used in prospecting. You can separate all of that at one time with a gallon or two of distilled water. They have different sizes so you can decide to do it over a 5-gal bucket or in smaller batches. The other nice thing is that it will separate the very large pieces that take forever to breakdown so they can be re-melted into smaller ones. The high quantity stainless will last longer of course.
Yep! enjoyed it! curious what the yield will be. Haha and blobs of metal as bright as the sun. Will you also get them analyzed? I'm so curious how selective those percipitations are.
Anode slime usually has a lot of good stuff in it, especially since yours came from refining already relatively pure silver. It likely has palladium platinum gold and rhodium in it. The rhodium will dissolve in boiling hot conc H2SO4.
After boiling those filters in nitric to get the silver out, I would boil them again in AR to also get all remaining gold and PGMs out. It won't be much, but every little bit counts and you aren't reusing them.
-That dynel fabric really comes clean. Looks reusable. - Boil the poured off bag sludge in DI H2O THEN screen out the un digested Ag shot. Need a wider mesh. Rinse with hot DI H2O. It’ll save you a ton of time and effort. It’ll be a whole lot less messy. Cement the solution you capture after that. The amount of work you’re doing is amazing. To move that last resistant sludge, you can use a rubber policeman. Don’t aspirate the supernate. Use your Büchner funnel. That concentrated waste AgNO3 is twice used waste Ag cell anolyte?
@@sreetips That’s the volume you should treat with a small amount of DMG. Once you’ve filtered out the Pd complex, you could simple cement out the Ag and return it to the cement pile. By pouring it and any entrained Pd into the mystery mud bucket, your adding in Ag that you’re forced to deal with. That you need not have to. Processes like these are where volume control gets important. Liter volumes are simple enough and fit your workspace. 4 and 5 liter volumes can’t practically fit in your workspace and risk things like getting dropped. When you have a dark green solution, after you’ve filtered out all the solids, you might want to consider the addition of sodium borohydride. It’d reduce every metal in solution to the metal form. By doing that, you could do away with most of that liquid volume and be able to work up just the sludges, and not the large number of rinse volumes. That circles back to my point a couple videos ago on your waste Au refining. ‘Too many transfers.’ Efficiency saves you time, for sure, but it also puts a check on the growth of volume of liquids. I rather cringed when you said you were ‘making it up as you went.’ I know you have an idea where you want to go and how you want to get there, but whenever you get to the ‘making it up as you go’ STOP. Review your plan. You are ‘winging it’ with a lot of value. Nothing would make me happier than to see you with a big button of Pt and Pd. You’re just making it harder on yourself. Take a deep breath. Slow down. Take your time.
I wonder if using an ultrasonic cleaner would work for separating out the silver shot from the pgm mud using a fine mesh basket? Maybe use a home made centrifuge to settle out the metals from liquid as well?
Sreetips, I'm AMAZED at how the Nitric acted like the ultimate detergent to those filter bags. Bleach couldn't hold a candle to the Nitric! Chemistry is my weakest area of science. It's why I sub to channels like yours... to learn more. Can you give some details as to why the Nitric is targeting the filter cloth's content so well without dissolving the filter cloth itself?
Those are Dacron filters. They hold up well even against hot nitric. The black slimes just dissolve away as the acid reacts with them. I agree, it reminded me of doing the laundry!
Any chance of a "How i clean my beakers and funnels" video? 🥺 It's probably just lots of dissolving but seeing specks and residue left behind lowers the satisfaction factor a smidge.😣 I need pretty buttons AND clean containers.😤
I added more than I thought I would need. In part two you’ll see that this was a big mistake. The DMG caused silver to come out of solution. Nightmare.
Only thing that leads a tougher life in Sreetips lab than the 5 gal buckets is the cardboard lining the bottom of the vent hood. Man those slimes are sticky! Thanks for the video!
I think I have a solution for washing the slimes off of the impure silver shot. You need a stainless steel mesh cylinder that you can mount in a power drill. Put the slimes and shot inside the cylinder, and then just slowly rotate the cylinder while it is half submerged in water. Or maybe just a rock tumbler would work.
I'm not a chemist and know nothing of this process, but I have a question for you. I've seen you add SMB right out of the jar into the liquid without any issues, yet every time I've seen you use DMG you put it in water first, which never really dissolves it. Why not just add the DMG directly to the solution in the same manner you do SMB? I know there must be a good reason for this, I've just never heard you tell us that reason. Fantastic videos for someone who knows nothing about any of this! I love watching you take something gross looking and turning it into something shiny!
Just a thought to perhaps help make this process easier in the future: Why not put the used filters into a bucket with some distilled water in it and then pop the lid on it to prevent them from drying out in the first place? It's a simple step and would save you some time and effort later on.
@29:00 How do you know, that the DMG does not chelate the copper- and nickel-ions out as well with the yellow palladium chelate ? Is there a temperature correlation ?
Maybe you are doing this some, but If it was me, I'd pick those large chunks out each time you swap a spent anode basket for a fresh one to save on the work of picking and washing at this step.
I would have run the mixture thru the strainer right after I rinsed all the filters then let the mixture settle. That way you wouldn't have had to resuspend the sludge to go thru the strainer.
Maybe start the separation with a coarse sieve, then put both parts separately through a fine sieve. That way you will spend less time fighting with big chunks in thick mud. [Edit - I see that others have made a similar suggestion before me.]
As much as this is my favorite series that you do by far, I always get so very concerned for your safety and well-being. I noticed that you are not wearing the long nitrile gloves when handling the solutions. Please consider using these to put us and Mrs. Sreetips at ease. Platinosis sounds like a terrible way to go..
I always love watching these videos of yours. You might be making it up as you go, but you're letting experience guide that process so it's usually a far better outcome than most of us could hope to achieve. I am left wondering here, from a metals separation standpoint and ease of cleanup afterwards, how much PGM is left in that solution after you pull out most of the Pd? Is it better to cement the silver out and then re-run through the cell, or convert to AgCl and then just send the remaining liquid through the stock pot? It's honestly been way too many years since I did any wet chemistry, myself (worked in a clean lab for a while, but that was ages ago and most of the metals work there was dry etched). I'm guessing with as much as you're able to reprocess things it more comes down to whatever uses less reagent and produces less waste in the end?
Wow, what a chore. I wonder if you could suspend the screen and shot off the bottom of a beaker, but still submerged and run a magnet bar under it to gently agitate the slime off
@SREETIPS, the only bit's I know about this hobby is what I've watched and learned from you, so this comment is purely an observation and not anything from experience. But, it seems it may have been a better choice to have strained out the silver granules after stirring the slimes into suspension, then let the slimes settle out and siphon off the clear solution. Maybe there's a good reason not to do it that way. Dunno. Just seems like it might save you a little time and labor. Thanks for the great content. I love it!
I really appreciate you speeding up the tedious parts. It makes for a very nice video. Can't wait to watch the rest of them. I haven't seen the next so this question may already be answered. Did you test for Pd after the DGM treatment? In otherwords did you add enough DGM to get all of the Pd?
No, I didn’t test. I added some extra DMG and got no precipitate. But I added way too much to the two smaller beakers. I let them set over night and the DMG caused silver to come of solution. What a nightmare.
Police officer since 06
Always enjoy watching your videos during down time in the night/early morning shift.
Love from little Rhode Island
I support the police! World would be a nightmare without the police.
@@sreetips thanks for your kindness.
3rd generation law enforcement. My sister is also. No better feeling Than helping those who need it.
I love to "beaker full of mystery mud" videos. Granted, they are messy, and a ton of work (which I appreciate) but I just love mentally running through the checklist of what's going on, and keeping track of where each kind of metal is in the process. Thanks, Sreetips. Your work is very appreciated.
I love the anode filters/stock pot/paper filter storage videos. It's like cashing in your savings. Also, I was thinking a stannous test on the remaining solutions should give a good idea if all of the PGMs have dropped out of solution.
YES another 9 part siver cell anode basket series 😂 looking forward to it, and you taking your learnings from the last series! Something very satisfying about recovering value from "waste" materials
I've watched every single video in your library and I must say Mr Sreetips, this is so far, the cleanest most well compartmentalized and filter basket recovery you've ever done. I'm glad to see that my suggestion to dissolve the slimes from the anode filter fabric was well received and worked flawlessly. Another amazing trip to Mr Sreetips Laboratory.
Good evening Sreetips,
I've been looking forward in watching your new anode basket series. The colors amaze me just as much as the individual reactions during the different processes. So cool.
What I want to know is how much scrap gold, gold filled, and sterling sliver have you processed to get to this point?
I am assuming the average hobbyist gold refiner would never accumulate enough silver "slimes" to make this worth while.
Very nice that you are working through the process so we all can learn from it!
Thanks!
I think it's great that you keep everything for processing down the line. Nothing gets by. And these further processes make great videos!
I liked the evolution of your cleaning process and the efficiency of re using the rinse liquid.
On the edge of my seat watching and taking notes. Can't wait for part 2. Thanks for sharing your methods.
Just when I thought I had thing's figured out you just showed me I've got much more to learn, outstanding sir.
Saturday night chemistry cliffhanger.
I find his videos so interesting I want them longer!
He's killing me! I want to binge these vidoes!
I know I want everything at once, no part 1 or 2 😂😂
Thank you for another great video❤
DMG is great reagent to drop Pd, only redissolving this is a mess. You can dissolve it in sodium hydroxide (11.6g of DMG + 8.0g NaOH). Such solution sometimes gives false white precipitate, which redissolve back when stirred (solution must be acidic, and cold od contain nitric).
This way you can dissolve 100g of DMG per liter, with all dissolved, which is enough to precipitate ~~20-25g of Pd.
And best is to drop silver first, I did not seen part 2 yet, but know this from my errors.
Please be very carefull with Pd-DMG im AR, from my expierience it almost everytime run away (or trying) on this process
Excellent start to a series! Maybe a collender on the first rinse to separate the shot? Something with bigger holes for sure!
Also my first thought.
EDIT: And make it non-metallic to reduce the chance of contamination.
I was waiting for you to make this video since you put a second silver cell on line!! I love your anode filter basket recovery series videos!! To turn something referred to as slime and make treasure from it is awesome!!! Sir, stay safe, keep the great videos coming and tell the Mrs we said hi!!!
24:50 I just wanted to point out the difficulty in seeing what's going on inside the beaker because of the reflection of the White Corning Glass casserole dish and though I doubt you can find these in Black I wonder if there's a way you could darken then to cut down on the reflection maybe a black porcelain paint or something like a motor/engine paint or another type of coating that is heat resistant because that would make it so much easier to see what's going on inside the beakers
I noticed that myself. Not very satisfying if you can’t see what going on.
Thank you Sir! It’s a messy job but someone has to do it. Submerge that sieve then agitate and finish with a few repetitive dunking motions. Looking forward to the next episode! 👍👍🤟
Gooood evening from central Florida! Hope everyone has a great night! Love these filter refinements!
Goooood evening!
This stuff never gets old! Thank you
I couldn't help but laugh when the giant beaker came into frame. Just nice little kitchen sized pots for the distilled water and anode's then BOOM giant beaker lol.
Hi Mr Sreetips. Your refining videos are the highlight of my UA-cam viewing. I look forward to your anode filter and stockpot treatments the most. I am a former RAAMC lab tech, and a chemistry nut. Below is a suggested way for separating the old Ag shot from the slimes. It may make separating easier and cheaper.
Equipment: 1-2 gallon sealable bucket. Skimmer or slotted spoon. Strainer. Distilled water.
Procedure:
1. When replacing the spent Ag anode filters, instead of storing them for later, discard the slimes/shot, and wash the filters into a sealable bucket. Add some distilled water to keep hydrated and to dilute any solutes. You could store the filters under water separately for later.
2. Periodically agitate the bucket to scour off any slime on the shot. Allow to settle.
3. Before adding the next batch of spent anodes to the storage bucket: a./ decant off the liquid in the bucket for Ag cementing ; b./ scoop out the shot in the bottom of the bucket with a skimmer/slotted spoon; c./ wash off any slimes through a strainer back into the bucket. Reuse the shot.
4. Keep repeating steps 1 to 3 until you feel that you have enough slimes to treat.
This should:
1. Make the separation of shot from slimes easier, and
2. Preventing the occurrence of PGM aerosols by keeping under water.
Thanks again for your commitment to refining. Regard Matt
Good process, thank you
Thank you for taking the time to film this process, I know it adds to the work load. 🙂
What I would do sreetips is put the sludge in the strainer and put it in your ultrasonic cleaned with hot distilled water the vibrations should loosen up the mud from the big pieces of silver
I've been waiting for the start of this series with great anticipation! I'm so curious about the yields. Thank you Sreetips!
Wonder would it be possible to put the silver shot in a type of ultra-sonic cleaner with distilled water to remove the "slime" and "sludge"? If possible, it could save a ton of time and manual labor?
Great video
Might I suggest using a classifier system, like what gold prospectors use? It may make this sifting process far easier.
I keep on asking myself why im so addicted to this channel.... keep up the good work.
A modern day alchemist enlightening the masses with his art and training future refining masters such as your self sir thank you for your videos and have a good day.
I do enjoy these videos. hes good at explaining the steps and its very interesting 😊
Sir this is going so much better than last time I'm looking forward to seeing the rest of this series thank you for sharing this six stars
Something like Jason’s shaker table would work really well for separating the shot from the slimes.
This is easily the best start you've ever made to a PGM recovery/refining series. Looks promising with a potentially bankable amount of Pd metal out of the dmgH complex there.
My guess is 3-6g of Pd, according to amount od precipitate
Brilliant, these "mystery mud" videos are always fascinating. 👍
Heck yeah welcome back to full length videos ❤.
A thought about washing the shots. Keep the liquid that you shipon of and run the not settled solids and mud through the strainer, to the second beaker, Lett the liquid settle in the second beaker and shipon the liquid back to the first beaker and stir up the solid and mud and run it through the strainer until the shots is free. That way you do not add more liquid to the waste bucket.
I can see where a mini trommel would come in handy for cleaning the silver shot back off. A drum of wire and mesh (Stainless Steel) that sits suspended in a large container like a tote or storage box and a little hand crank or small motor and spin it while half submerged in water. I assume it could be used to clean off a lot of things and not just silver shot. Can have it going off in the background and it might not be as messy.
One intended for cannabis tricomb sifting would work extremely well for this application.
Love watching u work it so so amazing I get to learn alot listening to u and watching amazing job....
I was wondering if you were going to try to remove the silver shot this time around... seemed like a pain but it's worth it in the end..Think a larger sized mesh or something like a pasta colander would of been an advantage or let too much silver through? That mud looked like clay.
It’s fascinating to watch you work. The colors of the solutions and fumes created are quite vivid. What’s left over in the sludge after you finish pulling out the gold and platinum group metals? Nickel and copper?
Nickel won’t cement on copper, so there’s probably not any nickel in there.
great serie! thanks a lot for the things you show to us!
Lot of work!💪 Looking forward to the next part🎉
Wow every single part was amazing to watch!! I can't wait to see the rest!
OMG I should have watched the entire video before commenting Sreetips! The Palladium precipitation was INCREDIBLE!
This looks like a ton of work! Can't wait to see how much you get when you're done.
It’s excruciating! But in the end it’ll be worth it - i hope.
@@sreetipswhich part is more excruciating? The Chemistry (I really enjoy), or setting up all of those shots. Your Timelapse’s are the best.
Working around the camera.
Hello my mentor, I have about ten used anode filters to process so will watch this series of videos with great interest
It’s not easy. I’m relying heavily on my experience to pull this off.
Patience is a virtue in your field, thanks for the video.
Very interesting, as usual.
An interesting synthesis would be:
Which acid dissolves which base metals and also, what combination of acid can dissolve the precious metals.
Thanks to you.
Sylvain
11:03 maybe it would help to place all of the slimes inside a window-screen "envelope" and put that inside an ultrasonic cleaner filled with distilled water.
Run that for about 10-15 minutes; pour the mud off into a beaker; then re-run with fresh distilled water 2-3x in order to get clean silver-cell shot inside the screen & fully-saparated PM muds in the wash-water/beaker. (still takes some time, but a LOT less manual labor)
At around 29:00, when that palladium is precipitating out and falling down it kind of looks like my old Matrix screensaver I had back on Windows 98 😂
I could, and do, watch you all day doing this.
Rinsing the shot out... great idea.
A mess, a huge mess, but great idea.
Distilled H²O is much cheaper than HNO³
It took some time. But I think it will be beneficial in the end.
I have been waiting for this video for a long time now. It is worth the wait..
Next time, you should pour the material through the mesh before letting it settle so the silver requires less rinsing
So jewelry is basicly gold, silver , plat/palad rhodium.. ... then copper /steel / lead.... and stones?.... is there any metal that turns up that that is odd or you wont touch ... ? Or just jewlery weirdness you have come across?....
Get yourself some classifiers like those used in prospecting. You can separate all of that at one time with a gallon or two of distilled water. They have different sizes so you can decide to do it over a 5-gal bucket or in smaller batches. The other nice thing is that it will separate the very large pieces that take forever to breakdown so they can be re-melted into smaller ones. The high quantity stainless will last longer of course.
It's amazing how much silver was cemented out considering how little silver nitrate you'd expect to be contained in the filters
YEAH! strainer! mechanical separation is usually the most eficient refining method :D.. I love this one... money from waste :D
Yep! enjoyed it! curious what the yield will be. Haha and blobs of metal as bright as the sun. Will you also get them analyzed? I'm so curious how selective those percipitations are.
Another video?!? Hell yeah! 💪💪🤯
I would recommend doing the shot rinse at the start when you were first cleaning the slimes out of the baskets. Just a thought.
Been looking forward to this vid, fantastic stuff thanks for sharing mate!
Anode slime usually has a lot of good stuff in it, especially since yours came from refining already relatively pure silver. It likely has palladium platinum gold and rhodium in it. The rhodium will dissolve in boiling hot conc H2SO4.
Please let us know when you decide to process that shirt
I may try to auction it on my eBay site.
After boiling those filters in nitric to get the silver out, I would boil them again in AR to also get all remaining gold and PGMs out. It won't be much, but every little bit counts and you aren't reusing them.
I’ll throw them in with my next paper filter burn and recover any traces during that process.
@@sreetips Works
-That dynel fabric really comes clean. Looks reusable.
- Boil the poured off bag sludge in DI H2O THEN screen out the un digested Ag shot. Need a wider mesh. Rinse with hot DI H2O.
It’ll save you a ton of time and effort. It’ll be a whole lot less messy.
Cement the solution you capture after that.
The amount of work you’re doing is amazing.
To move that last resistant sludge, you can use a rubber policeman.
Don’t aspirate the supernate. Use your Büchner funnel.
That concentrated waste AgNO3 is twice used waste Ag cell anolyte?
Yes
@@sreetips That’s the volume you should treat with a small amount of DMG. Once you’ve filtered out the Pd complex, you could simple cement out the Ag and return it to the cement pile.
By pouring it and any entrained Pd into the mystery mud bucket, your adding in Ag that you’re forced to deal with. That you need not have to.
Processes like these are where volume control gets important. Liter volumes are simple enough and fit your workspace. 4 and 5 liter volumes can’t practically fit in your workspace and risk things like getting dropped.
When you have a dark green solution, after you’ve filtered out all the solids, you might want to consider the addition of sodium borohydride.
It’d reduce every metal in solution to the metal form.
By doing that, you could do away with most of that liquid volume and be able to work up just the sludges, and not the large number of rinse volumes.
That circles back to my point a couple videos ago on your waste Au refining. ‘Too many transfers.’ Efficiency saves you time, for sure, but it also puts a check on the growth of volume of liquids.
I rather cringed when you said you were ‘making it up as you went.’
I know you have an idea where you want to go and how you want to get there, but whenever you get to the ‘making it up as you go’ STOP.
Review your plan.
You are ‘winging it’ with a lot of value. Nothing would make me happier than to see you with a big button of Pt and Pd. You’re just making it harder on yourself.
Take a deep breath. Slow down. Take your time.
I wonder if using an ultrasonic cleaner would work for separating out the silver shot from the pgm mud using a fine mesh basket? Maybe use a home made centrifuge to settle out the metals from liquid as well?
Sreetips, I'm AMAZED at how the Nitric acted like the ultimate detergent to those filter bags. Bleach couldn't hold a candle to the Nitric! Chemistry is my weakest area of science. It's why I sub to channels like yours... to learn more. Can you give some details as to why the Nitric is targeting the filter cloth's content so well without dissolving the filter cloth itself?
Those are Dacron filters. They hold up well even against hot nitric. The black slimes just dissolve away as the acid reacts with them. I agree, it reminded me of doing the laundry!
I saw your video pop up in my feed. I'm late, but I'm watching.
Outstanding as usual Sreetips!!
Washing the slimes off the intact silver pieces was a lot more work than I'd have expected.
Any chance of a "How i clean my beakers and funnels" video? 🥺
It's probably just lots of dissolving but seeing specks and residue left behind lowers the satisfaction factor a smidge.😣
I need pretty buttons AND clean containers.😤
He gets rid of those pesky gold stains with aqua regea! ;-)
Love seeing those super dark orange fumes
For as much distilled water as sreetips uses, I'm surprised he does not distill his own from tap water. Great videos.
It’s less hassle just to buy it from the grocery store.
I love to see you make it up as you go. Sreetips is so entertaining. How do you know if you have added enough DMG for the amount of liquid you have?
I added more than I thought I would need. In part two you’ll see that this was a big mistake. The DMG caused silver to come out of solution. Nightmare.
Only thing that leads a tougher life in Sreetips lab than the 5 gal buckets is the cardboard lining the bottom of the vent hood. Man those slimes are sticky! Thanks for the video!
I think I have a solution for washing the slimes off of the impure silver shot. You need a stainless steel mesh cylinder that you can mount in a power drill. Put the slimes and shot inside the cylinder, and then just slowly rotate the cylinder while it is half submerged in water. Or maybe just a rock tumbler would work.
I'm not a chemist and know nothing of this process, but I have a question for you. I've seen you add SMB right out of the jar into the liquid without any issues, yet every time I've seen you use DMG you put it in water first, which never really dissolves it. Why not just add the DMG directly to the solution in the same manner you do SMB? I know there must be a good reason for this, I've just never heard you tell us that reason. Fantastic videos for someone who knows nothing about any of this! I love watching you take something gross looking and turning it into something shiny!
It tends to clump together.
Looks like UA-cam is doing it boot algorithm. I somehow have been unsubscribed. I do love the work and details you put into your videos.
Welcome back!
Just a thought to perhaps help make this process easier in the future: Why not put the used filters into a bucket with some distilled water in it and then pop the lid on it to prevent them from drying out in the first place? It's a simple step and would save you some time and effort later on.
Good idea, thanks
That DMG dropping that palladium out was like the matrix
@29:00 How do you know, that the DMG does not chelate the copper- and nickel-ions out as well with the yellow palladium chelate ? Is there a temperature correlation ?
I don’t know either
Maybe you are doing this some, but If it was me, I'd pick those large chunks out each time you swap a spent anode basket for a fresh one to save on the work of picking and washing at this step.
tkzz for sharing another banger series,,.,.peace
You should get Dan Hurd to send you a gold pan. You could have saved alot of time planning it out 😅
Awesome video thanks for sharing sreetips
i love these slims recoveries
I would have run the mixture thru the strainer right after I rinsed all the filters then let the mixture settle. That way you wouldn't have had to resuspend the sludge to go thru the strainer.
Maybe start the separation with a coarse sieve, then put both parts separately through a fine sieve. That way you will spend less time fighting with big chunks in thick mud.
[Edit - I see that others have made a similar suggestion before me.]
As much as this is my favorite series that you do by far, I always get so very concerned for your safety and well-being. I noticed that you are not wearing the long nitrile gloves when handling the solutions. Please consider using these to put us and Mrs. Sreetips at ease. Platinosis sounds like a terrible way to go..
I always love watching these videos of yours. You might be making it up as you go, but you're letting experience guide that process so it's usually a far better outcome than most of us could hope to achieve. I am left wondering here, from a metals separation standpoint and ease of cleanup afterwards, how much PGM is left in that solution after you pull out most of the Pd? Is it better to cement the silver out and then re-run through the cell, or convert to AgCl and then just send the remaining liquid through the stock pot? It's honestly been way too many years since I did any wet chemistry, myself (worked in a clean lab for a while, but that was ages ago and most of the metals work there was dry etched). I'm guessing with as much as you're able to reprocess things it more comes down to whatever uses less reagent and produces less waste in the end?
The DMG will pull most of the platinum and palladium. Then I’ll filter the precipitate out and cement what in the liquid on copper.
I'm at 12:19 in the video some kind of recirculating water system would be great that.
You know it's serious when the 5L beaker is there. and there's at least 2 in this video. :)
Wow, what a chore. I wonder if you could suspend the screen and shot off the bottom of a beaker, but still submerged and run a magnet bar under it to gently agitate the slime off
Hello full length videos my old friend it’s nice to talk with you again🎵❤😂 Simon and Garfunkel 🎉
I have went down a rabbit while with your videos. All the way from Scotland
Hoots man, is the moose still loose aboot the hoose
;-)
Alba gu bràth
:)
Couldn't you use an ultrasonic cleaner to clean off the solids? Less water usage, maybe even faster. Just a thought.
Possibly
Yeah ! I was impatient like a child waiting christmas ! But you should be careful and do more staineous tests !
@SREETIPS, the only bit's I know about this hobby is what I've watched and learned from you, so this comment is purely an observation and not anything from experience. But, it seems it may have been a better choice to have strained out the silver granules after stirring the slimes into suspension, then let the slimes settle out and siphon off the clear solution. Maybe there's a good reason not to do it that way. Dunno. Just seems like it might save you a little time and labor. Thanks for the great content. I love it!
There’s just no easy way to do this.
That was fun. Thank you!
You sure have a super cool, "Hobby."
I really appreciate you speeding up the tedious parts. It makes for a very nice video. Can't wait to watch the rest of them. I haven't seen the next so this question may already be answered. Did you test for Pd after the DGM treatment? In otherwords did you add enough DGM to get all of the Pd?
No, I didn’t test. I added some extra DMG and got no precipitate. But I added way too much to the two smaller beakers. I let them set over night and the DMG caused silver to come of solution. What a nightmare.