Posted 1/13/2021 13:35 (#8748172 - in reply to #8746968) Subject: RE: Sulfur Sources for Dummies
John Smith - 1/13/2021 02:14
I was not aware the Gypsum contained Sulfur when mined?
Gypsum is used in the Scrubbers of power plants.
This absorbs Sulfur.
Then the Sulfur laden Gypsum is sold to farmers.
Not really sure what form of Sulfur is in the Gypsum when mined?
I will guess that it is Elemental.
The "gypsum' that is sold from coal fired power plants is taken from the scrubbers that remove the sulfur from the fumes coming out of the coal fired boilers. So it is not an natural gypsum like is mined but it has similar qualities. I think they use calcium carbonate ie limestone in the process of removing the sulfur from the smoke so they end up with mostly CaSo4 like gypsum by-product.
The power plant by-product is sometimes sold by the name "Gypsoil". Here is a link to the gypsoil site. http://www.gypsoil.com/