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Fluorspar, also known as fluorite or calcium fluoride (CaF2), is the calcium salt of hydrofluoric acid and a very widespread mineral that occurs primarily in granites and other volcanic rocks.
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Fluorspar is used in many different industries (see below). Metallurgical Fluorspar for instance, is used to aid the removal of impurities in the production of stainless steel and as a flux in metalworking. It lowers the melting point and so increases energy efficiency. The main application area for acid grade Fluorspar is the production of hydrogen fluoride by adding sulfuric acid. In addition, Fluorspar is used in the manufacture of Teflon® coatings and GORE-TEX® products.
During sintering (firing) at temperatures of 1750 – 2000 C° in shaft or rotary kilns naturally occurring magnesium carbonate is converted into sintered magnesia, directly (...
Dolomite is a naturally occurring mineral and rock consisting mainly of calcium magnesium carbonate. It is characterized by a variety of properties. Dolomite comes in a var...
Fluorspar, also known as fluorite or calcium fluoride (CaF2), is the calcium salt of hydrofluoric acid and a very widespread mineral that occurs primarily in granites and o...