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Post by docone31 on Aug 4, 2008 10:10:49 GMT -5
I have several pounds of gold filled scrap. I kept it all.
I have been a busy camper refineing my gold.
All you need is a battery charger, drain cleaner, sulphuric acid one, and a stainless clip.
It is do able.
You will need to "roast" your gold filled, then clip it into your acid solution.
I made a lead anode, the cathode is stainless.
The black powder on the bottom of the container is the gold.
Once I filter this powder, I make a muriatic acid solution with bleach. This dissolves the gold and makes auric chloride. From there, I drop the gold out with sodium metabisulphate.
You can do it.
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Post by docone31 on Aug 4, 2008 10:12:10 GMT -5
I must add, "roasting" is where you take a propane torch and heat your gold filled just short of melting. This allows the gold filled to reverse plate and drop out as black powder.
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adrian65
Cave Dweller 
Arch to golden memories and to great friends.
Member since February 2007
Posts: 10,790
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Post by adrian65 on Aug 4, 2008 11:50:50 GMT -5
That's high chemistry, at least for me. It looks like a lot of acids, fumes and bubbles.
WTG for discovering a way to recycle all the gold you have.
Adrian
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hkswrapsody
starting to spend too much on rocks
Member since June 2008
Posts: 109
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Post by hkswrapsody on Aug 4, 2008 12:23:25 GMT -5
don't forget to wear a mask to protect your lungs from acid fumes and work under a fumehood or better yet outside where there is good ventilation and protect your hands with latex gloves and as well as a rubber apron. As a retired Chemical Engineering Technologist I cannot stress the importance of protecting yourself. The chemicals you are playing with aren't for amateurs. Read the safety precautions carefully and keep lots of extra water around to dilute the acid in case your spill some somewhere. Good luck!
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Post by docone31 on Aug 4, 2008 16:54:58 GMT -5
Well, for those of us who would prefer a less intensive approach,
Get a flat bottomed stainless steel pot. The larger diameter, and lower walled the better. Get a flower pot, clay, with the bottom unperforated.
Clip the anode of the battery charger to the stainless steel pot. Fill the pot, and flower pot with salt water. Clip the cathode of the battery charger to the piece to be refined.
Collect the salt water in a pyrex beaker, or coffee pot, or pyrex whatever that is large enough to contain the salt water.
Drop in Rust Off. The gold will precipate out as a brown powder. Melt it in a crucible, and you have 3n5 gold!
Simple, safe, with no BFRC!
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Post by docone31 on Aug 4, 2008 16:58:58 GMT -5
As usual, I forgot a detail.
Clip the piece to be dissolved inside the flower pot. The clay walls are not porous enough to let the gold ions through.
The Auric Chloride will be in the flower pot. Drain the flower pot into the container, and drop in sodium meta bisulphite in there.
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schubertmax
off to a rocking start
Member since April 2015
Posts: 1 
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Post by schubertmax on Apr 22, 2015 23:19:33 GMT -5
How do you filter your black powder from the sulfuric acid? I have about 3 containers that would love to know the answer. I have AR ready for further refining once I figure a way to filter and gather it effectively. Any advice on the matter would greatly be appreciated.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,723
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Post by Fossilman on Apr 23, 2015 9:46:24 GMT -5
Great information to remember-Thumbs up
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Post by docone31 on Apr 23, 2015 11:28:32 GMT -5
Neutralize the acid, then dilute and reduce the volume of liquid. Compine all the black powder into one container, rinse the others into it, then evaporate the liquid into useable amount.
Then take coffee filters, make a funnel and pour the liquid into it, being careful of the amount vs filtering.
This black dust, and filter can then be melted in a crucible. Soak the filter in alcohol in the crucible, light and let burn, then melt the dust.
I also use a lot of borax to keep the pressure of the flame from blowing the dust out.
Makes a nice little nugget.
The other alloys are gone, leaving 24kt. They rinse out with the water.
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