Gold & Silver Recovery From Bulk IC Chips part 2

[@Musallem77l]

My friend, there is a step that if you do it before the long and boring washing step, it will shorten this step for you. After burning and charging, put the product in a plate and put it on a strong fire again to burn it and turn all the black color into white ash that you can get rid of easily.

[@ManMountainMetals]

Try ferrous sulfate to drop your dirty gold, then redo with ur SMB to clean it. Ferrous sulfate seems 🤔 to drop bigger particles of gold. See AK Gold Bear videos 📹 for examples.

[@keithrodman9318]

Great video! Great to see more of the mass processing style to find out if anything changes from the small test type batches. Looking forward to seeing your next video!

[@rockman531]

Hi Mike, Another fantastic video! The second refine with no results was great to see! Good job!! Thumbs up! Jim

[@josephnoonan82]

great video!

[@markgellie7032]

Hi Mike great video as always. I tried something different in my process which I think you should try. After your gravity separation put your concentrates back into you pan and back onto your foundery. It turns the carbon white very quickly only takes 5 minutes and probably was one of my best extractions. Anyway do with that information what you like. I was even thinking on doing another gravity separation after but probably not needed. Ok thanks again for your videos have learned a lot from you so thank you

[@GeorgiaDogScrapper]

Looking for the final tally of the gold from those chips. I am getting ready to start some recovery myself. Do you have a video of recovery the gold from e-waste boards themselves. I have several boards that have gold on the boards themselves. Also do you have an email, that I would be able to consult with you as I am doing any of the process for recovery. Also did you build your fume hood system or did you buy it pre-built. Thanks for your assistance and as always take care and I will see you on the next video. Oh by the way I have around a 100 pounds of gold bearing material.

[@leonmarut7092]

nice well done

[@Hill-13]

Could you share with us the glass filter info what size is it and where you picked it up , please ?

[@WaffleStaffel]

Are you referring to the fritted glass filter? It looks like a 200 or 300ml volume. Medium frit is a good general purpose grade, but if you're inserting paper filters you can go with a large frit, or a less expensive Buchner funnel.

[@Hill-13]

I have 2 Buchner 100 ml funnel so weird filter paper fits and one and is loose in the other one . I’m looking to get better funnels

[@WaffleStaffel]

@@Hill-13 If you get one that's 65mm in diameter, you can use dirt cheap Aeropress coffee filters.

[@bayouboy6042]

Great videos! Would love to see that sluice lol

It'd be interesting to compare the energy cost and mass of carbon generated in the extraction process vs that of its production (intrinsic carbon cost).

[@WaffleStaffel]

Embodied carbon emissions? I'm betting the production causes more emissions, as there's the mining, earth moving, extraction, refinement, processing into the forms that production/fab facilities use, transportation, assembly into final product, more shipping, etc.. However, I'd wager the extraction is nearly as carbon intensive. But, in the end, you're keeping precious metals out of the landfill. It's expensive and resource intensive, but higher CO2 = more greening and record crops. The focus on carbon is misdirection to shift blame and austerity on the end user. Never a peep is uttered about pollution, waste, or planned obsolescence.

[@guytelfer1353]

There's stuff in the mudd

[@AT-os6nb]

keeping your eye out for drones over there ?

[@Musallem77l]

Because the black that remains to you is not black ash, but rather small grains that were not burned and were not well reached by the fire, and therefore they must be re-burned well.

[@WaffleStaffel]

Yes, and if there's any IC package which is burned, but not turned to ash, it'll absorb some gold just like activated carbon would.

[@Musallem77l]

@WaffleStaffel Yes, my friend. You will lose some gold. This is also the reason for not completely eliminating the other minerals that make the aqua regia green-blue. Because these small carbon pieces may retain some of the electronics legs. They must be returned again after grinding and burning them well until the black material disappears and turns into white ash.

[@damienperry5758]

41:50 correction: your SMB is one big lump because you live in Florida 😜

[@WaffleStaffel]

I have a hard time fully ashing my IC's. I can bring them to a bright red glow, hit them with the torch on full blast, but I usually only ash the outside half of the package. I've tried burning in open air, and pyrolyzing in a loosely sealed container. I've used a big propane torch, and an electric burner. I've even tried blowing pure O2 on the red hot material, but it doesn't burn like carbon would, it just cools it off. Even after repeated burning and pulverizing, I still end up with tons of black bits clinging to legs/bond wires/silicon. Any suggestions? I haven't done it large scale with a weed burner like you, I've only done very small test batches, but you'd think that would do a more complete burn. I'm tempted to try an oxy-propane torch, but I don't want to melt everything.

[@Hill-13]

@@WaffleStaffel I have had good results using propane burner on the bottom and turbo torch ( it just uses acetylene ) from the top . Burn , crush , burn again.

[@WaffleStaffel]

@@Hill-13 Thanks.