Hydrogen fluoride process

Details Hydrogen fluoride process Hydrogen fluoride process

1977-05-26

1978-10-17

Hearn, Brian

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

423485, 423555, C01B 722

Patent

active

041209397

ABSTRACT:
Anhydrous hydrogen fluoride is manufactured by dropping small particles of a metal fluoride, e.g., calcium fluoride, through a reaction zone countercurrent to a gas stream containing sulfur trioxide, sulfuric acid and water vapor.

REFERENCES:
patent: 3102787 (1963-09-01), McMillan et al.
patent: 3278265 (1966-10-01), Quarles
patent: 3282644 (1966-11-01), Quarles
patent: 3469939 (1969-09-01), Aiso et al.

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