kjavanb123
Well-known member
Kurt,
I load up 40 lbs of ICs first, this filled 2/3 of the gas tank, screw the cap tight, and fired up the burner, no smoke but the smoke from unburned gasoline was there. Let it cook for 3 hours straight. Checked the chips inside they were like yours in the picture. I was in a hurry to go to smelter I do not have a photo of my complete pyrolysis.
After this step, I load them to my grinder and they pretty much turned into powder including waffers, legs and etc. At the smelting shop, he added 6 shovles of sodium carbonate powder, mixe it well wih my 25 kg pulverized and pyrolzed ICs, the. He added 17kg of what he said PbO compound, it did not look red, more of yellowish chuncks.
He fired up the big cupola furnace, and in order to avoid blowing the powder he mixed the PbO chunck, soda ash and IC with some water. Then drop shovel of each to the furnace, removing the slag as it burned and PbO melting along with ICs powder.
After 6 hours of this process, slag is completely removed, and all seen was a pool of molten lead. Then he added 620g of silver, somehow that collects any gold, PGMs and silver in ICs. Then he oxidzed the Pb and Ag pool, since Ag does not get oxdized he removed the PbO until no more of it was visible.
He turned the heat off, and collected the silver alloy which contains all the heavy metals in the starting load. Dropped it in nitric acid, and after 30 minutes or so, rinsed the silver copper nitrate solution and rinsed the remaining brown powder with hot water till the rinse water becomes clear.
Here are some photos,
This is inside the furnace as silver already added to lead pool, and lead was oxidized and removed, that clear molten is silver alloyed with gold or other heavy metals
This is the silver alloy as it solidified
Silver dore inside the nitric bath. The pot used were stainlese steel.
Here is the auric chloride dried
And finally silver copper nitrate solution rinsed, cementing silver using copper bars.
Hope that helped. He said to stock pile all the slags and run a rotary furnace once they are 1000lbs to collect any traces of precious metals trapped in slag.
Regards
Kj
I load up 40 lbs of ICs first, this filled 2/3 of the gas tank, screw the cap tight, and fired up the burner, no smoke but the smoke from unburned gasoline was there. Let it cook for 3 hours straight. Checked the chips inside they were like yours in the picture. I was in a hurry to go to smelter I do not have a photo of my complete pyrolysis.
After this step, I load them to my grinder and they pretty much turned into powder including waffers, legs and etc. At the smelting shop, he added 6 shovles of sodium carbonate powder, mixe it well wih my 25 kg pulverized and pyrolzed ICs, the. He added 17kg of what he said PbO compound, it did not look red, more of yellowish chuncks.
He fired up the big cupola furnace, and in order to avoid blowing the powder he mixed the PbO chunck, soda ash and IC with some water. Then drop shovel of each to the furnace, removing the slag as it burned and PbO melting along with ICs powder.
After 6 hours of this process, slag is completely removed, and all seen was a pool of molten lead. Then he added 620g of silver, somehow that collects any gold, PGMs and silver in ICs. Then he oxidzed the Pb and Ag pool, since Ag does not get oxdized he removed the PbO until no more of it was visible.
He turned the heat off, and collected the silver alloy which contains all the heavy metals in the starting load. Dropped it in nitric acid, and after 30 minutes or so, rinsed the silver copper nitrate solution and rinsed the remaining brown powder with hot water till the rinse water becomes clear.
Here are some photos,
This is inside the furnace as silver already added to lead pool, and lead was oxidized and removed, that clear molten is silver alloyed with gold or other heavy metals
This is the silver alloy as it solidified
Silver dore inside the nitric bath. The pot used were stainlese steel.
Here is the auric chloride dried
And finally silver copper nitrate solution rinsed, cementing silver using copper bars.
Hope that helped. He said to stock pile all the slags and run a rotary furnace once they are 1000lbs to collect any traces of precious metals trapped in slag.
Regards
Kj
