Production of hydrogen fluoride

Details Production of hydrogen fluoride Production of hydrogen fluoride

1977-08-15

1979-03-13

Vertiz, O. R.

Chemistry of inorganic compounds

Halogen or compound thereof

Binary fluorine containing compound

423483, C01D 302

Patent

active

041443152

ABSTRACT:
Hydrogen Fluoride is manufactured from fluorosilicic acid. The fluorosilicic acid is reacted with ammonia to produce aqueous ammonium fluoride and solid silica. The ammonium fluoride is hydrolised in the presence of a mixture of ammonium fluoride and ammonium bifluoride, and the net production of ammonium bifluoride is converted to sodium bifluoride. The sodium bifluoride is decomposed by heating to hydrogen fluoride gas.

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