Processing Anode Slimes from my Copper Refining Cell, part 1

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In this video I collect and begin processing the anode slimes produced by my electrolytic copper refining cell after running for 25 days and completely consuming one set of dirty copper anodes. Time to figure out how much precious metals were deposited in the slimes. Please visit www.mdpub.com/UrbanGoldMining/... for more information.
Equipment used in this video:
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3pcs Glass Graduated Beaker Set 500ml, 1000ml, 2000ml amzn.to/3faaHO3
12PK Watch Glasses, 6" (15cm) - Cover Lids for Beakers & Flasks amzn.to/3j5MHMS
Filtering Flask, 1000ml - Borosilicate Glass - Conical Shape, with Integral Side Arm www.amazon.com/gp/product/B01...
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Chemicals used in these videos:
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17 фев 2022

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Комментарии : 41

@Alrik. 2 года назад

You mentioned before that you improved your process with the stockpot and so your copper will contain less precious metals. As a fan of efficiency I should like that you won't need to run your copper through a refining cell forever, but I would watch videos about it forever for sure! 😉

@johannesdesloper8434 2 года назад

HA! it's Fe(NO3)3 and Cu(NO3)2 , Fe3+ and Cu2+ So if you pump 6 electrons from Anode to Kathode in the cell 2 Iron ions will dissolve and 3 Copper ions will plate out, meaning that you put 2 x 55,845 Fe = 112 mol into solution and plate out 3 x 63,546 Cu = 192 mol. This was the mechanism I hinted to with the Silver but HA! that works just the other way around because it's Ag1+. Zink is also a good explanation for Kathodes become heavier than Anodes because that will go in a 1 to 1 ion ratio and Zink is less dense than Copper. Sorry I screwed up but I was 2/3 right :D

@johannesdesloper8434 2 года назад

If you are thinking about Iron might be in the Anodes then I'm pretty sure there might be Nikkel also

@sowh-8ngzie1 Месяц назад

Fascinating video, thank you for sharing

@sowh-8ngzie1 Месяц назад

I’m studying industrial ecology and I wanted to understand anode slime and the recovery process. But at first, I could only find static photos online. This video is priceless to me.

@StillFunBrewing 2 года назад

Fun deal. Can't wait to see your results. I have been tasked with running some production precious metal recovery. I think I'm going to mass smelt pre-ashed electronics adding some Sulfur, flux and Iron to get all the copper and precious metals reduced into an ingot and then Electrowinn the copper out of that material and then treat the slimes with acids to get the precious metals. Rather than using acids to dissolve all the copper and removing the precious metals first and then dealing with dirty copper later.

@vw8796g35 2 года назад

Reactive series of metal would confirm silver will be drop from solution and not go in to solution as copper is the most represented in your experiment

@jasonsilver6474 Год назад

True, but if he starts using filter bags they will hold other metals back and the electricity will force them in to solution. On the other hand when you get it right it makes the most awesome copper with a light metallic sheen of other colors .

@_smithcraft_ 4 месяца назад

Im a couple of years behind on the topic but at 28:52 you mentioned that you had bricks in your solution. One of the things that give bricks there characteristic color is iron. Your contamination may very well have been from there addition.

@shaneyork300 2 года назад

Interesting ending!!

@omegageek64 2 года назад

It's not the end. Just a good place to break up a video that was growing towards two hours long. The second half should be ready for release tomorrow.

@ANCIENTASTRONAUT411 Год назад

Gold is going to be there

@buggsy5 Год назад

Since this was brand new territory, you should not have been treating the whole mass with nitric first thing. Put a small amount of the slimes into a test tube and treat that with nitric acid. It will only require a drop or two of the slimes and a few drops of nitric. You can also heat and cool the test tube much more quickly than the beaker. The end result is you save both time and materials - as well as avoiding doing something that will cause problems further along in the process.

@abdelrahmanmohamed3200 3 месяца назад

What source of copper are you working with?

@SomervilleBob 2 года назад

You can make irregular sheets easily by pouring the metal onto a piece of steel. The sheets don't have to be perfectly rectangular to work.

@FollowMe2aMillion 2 года назад

Just a guess. Maybe the NOX fumes were used up before they could leave the solution. I watched part 2 and I think a lot of copper made it through. I would have thought the same as you though and carried on. Great series Mike, as always.

@jasonsilver6474 Год назад

I'm probably the only guy that uses 3 gallon party tea dispensers. There is no better electroplating/refining tank !!

@mikewolter7829 Год назад

Pour ingot and get one of those roller presses. You will control the thickness and width to a point

@kreynolds1123 Год назад

What would have happened if you had ended the elecrowinning with a carbon rod anode? I'm not certain of this but would it not have pulled continued to plate the copper ions onto the cathode. Regenerating nitric and sulphuric acids, and those acids inturn react with unreacted copper making copper salts untill the there was no more copper in the sludge?

@mrgreenswelding2853 2 года назад

I remember getting that black stuff off of copper that I left in AR.

@giorgosxyrichis3630 2 года назад

Well ... hm ... very impressive and tricky video ... I've got an idea h2so4 50-50 with hcl to protect b.m. and nitric in portions till no reaction to dissolve any p.m. and clsn2 will anser to question . But.... h2so4 will not dissolve Ag. Au pd will disolve

@shanejohns7901 Год назад

@15:36 That chunky stuff that you filtered off shouldn't be treated as pure copper that has just 'fallen off' the anode. Some of that copper still can have gold attached to it, and should be re-melted into your next anode. I've seen quite a few people who don't seem to realize this.

@shanejohns7901 Год назад

@26:10 What happens if you use a carbon rod (which will deteriorate the rod, and put carbon into your electrolyte solution), or more ideally a platinum mesh rod? Will that plate out the metal from the electrolyte?

@bazonis1gp 2 года назад

👍👍👍

@blacklabelonthebedrocks 2 года назад

You could make the bricks chemical proof by sealing them. Paint for concrete floors should work well for this. It makes them easier to clean also.

@salihakdag6371 Год назад

👍👍❤️

@ManMountainMetals 2 года назад

others have made tapered ingots anodes.........this supposedly prevents the copper sloughing off into the slimes. Never tried it myself.

@mrgreenswelding2853 2 года назад

Silver won't push copper out, but you are probably right iron and zinc.

@foobar1794 2 года назад

If the anode slimes have still high copper content, could you just remelt the anode slimes to a new anode? You could then run that anode again through the cell along with the next batch. This could help you to concentrate the values and at some point you would have concentrated enough values to anode slimes to justify processing with nitric acid.

@afineliner740 2 года назад

I'm waiting with bated breath !! I probably would have added more nitric to be sure. 👍

@nickford5549 6 месяцев назад

If you melt your copper into shot you may have an easier time loading them into a filter while submerged

@julianalcorso5703 Год назад

Once again, again.... Too much H2O and not enough HNO3. The Key is to get the BMs dissolved ASAP and with as little acid as possible. Really enjoying your vids!

@nickford5549 6 месяцев назад

Check out street tips silver cell, he collects slimes from silver cell

@nickford5549 6 месяцев назад

Coppper Is more reactive so wouldn’t be replaced with silver, reactive series of metals

@nickford5549 6 месяцев назад

Probably zink

@julianalcorso5703 Год назад

Oh, and test first with a teaspoon of solids and a few mls of HNO3 1:1 See what happens and go from there.

@mikestewart4752 2 года назад

Copper Carbonate?

@robertcase4579 2 года назад

try evaporation on your liquid

@myadventure7069 2 года назад

What I see is dizaster ! To recover anithing from that mes be wery expensive

@MAButh 7 месяцев назад

Much too much fumbling. Decant the liquid and add HCL to the solids. Then filter and you have all the PMs plus some other non disolveable materials in your filter. From there use AR.