Mad Machinist
Silver Member
Whoever shut down the Bureau Of Mines needs crucified. For all the crying about sulfur dioxide and lead emissions from smelters a solution was found.
https://www.911metallurgist.com/process-produces-lead-galena-concentrates-pollution/
And it is still available.
https://www.amazon.com/Hydrometallurgical-process-producing-elemental-concentrates/dp/B003HKQM70
So with some investment, you take a waste stream and turn it into a profit stream. Both the lead and pure elemental sulfur still have value on the market.
The other minerals come out as a sludge for further processing. So any copper, gold , silver, etc. can be recovered.
And people wonder why I get so fired up about certain things.
https://www.911metallurgist.com/process-produces-lead-galena-concentrates-pollution/
And it is still available.
https://www.amazon.com/Hydrometallurgical-process-producing-elemental-concentrates/dp/B003HKQM70
So with some investment, you take a waste stream and turn it into a profit stream. Both the lead and pure elemental sulfur still have value on the market.
The other minerals come out as a sludge for further processing. So any copper, gold , silver, etc. can be recovered.
And people wonder why I get so fired up about certain things.