Process for producing hydrogen fluoride

Details Process for producing hydrogen fluoride Process for producing hydrogen fluoride

1983-06-06

1985-01-01

Thomas, Earl C.

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

423555, C01B 719

Patent

active

044915713

ABSTRACT:
A process for producing hydrogen fluoride with use of fluorite as starting material and by conducting reactions in a first reactor and a second reactor wherein a reaction of fluorite with sulfuric acid, sulfuric anhydride and steam in the first reactor is conducted at a conversion of from 35 to 90% while maintaining the reaction temperature within a range of from 140.degree. to 240.degree. C. by controlling the respective amounts of the sulfuric anhydride, steam and sulfuric acid.

REFERENCES:
patent: 3825655 (1974-07-01), Eipeltauer et al.
patent: 4010245 (1977-03-01), Spreckelmeyer et al.

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