81 comments on Refining 101: The Assay Essay
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81 comments on Refining 101: The Assay Essay
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What happens to the sulfur depends on economics. It's a pretty good bet that the price of elemental sulfur will continue to fall because sulfur is also piling up at coal-fired power plants while the demand for sulfur is not growing at anything like the same rate. In some cases, the sulfur can be made into sulfuric acid on site and sold as such, but in the long run that will just knock down the price of H2SO4. I expect elemental sulfur will eventual be treated as a waste.
When I was taking chemistry (about 3 decades ago), the professor mentioned that the price of H2SO4 as an industrial chemical was the cost of transportation from Texas Gulf Sulfur or wherever. The white vitriol in the lab was that price, plus the cost of the container.
I do recall seeing a picture of a sulfur mountain back then, produced by the Frasch Process. Is it even necessary to exploit sulfur deposits that way any more?
Bought some as soil adment spring 05. $5.50/50 lb sack. There are mountains of it off the AlCan, northern BC, back in late 90's.