Production of hydrogen fluoride

Details Production of hydrogen fluoride Production of hydrogen fluoride

1975-09-02

1977-12-13

Stern, Edward

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

423339, 423472, 423470, 423490, C01B 722, C01B 3312, C01C 116, C01D 302

Patent

active

040629295

ABSTRACT:
Hydrogen fluoride is produced from hydrofluosilicic acid. The hydrofluosilicic acid is reacted with ammonia. An aqueous solution of ammonium fluoride thus produced is fed with partly recycled alkali metal fluoride to a continuously operated reactor where a bifluoride of the alkali metal is formed in aqueous solution. Reaction mixture is continuously withdrawn and solid alkali metal bifluoride crystallized therefrom. The mother liquor is recycled to the reactor. The solid alkali metal bifluoride is decomposed by heat to produce hydrogen fluoride and solid alkali metal fluoride. The alkali metal fluoride is recycled to the reactor.

REFERENCES:
patent: 3101254 (1963-08-01), Cunningham
patent: 3195979 (1965-07-01), Burkert et al.
patent: 3323861 (1967-06-01), Toyabe et al.

Affiliated with

Also associated with

Rating

Production of hydrogen fluoride does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of hydrogen fluoride, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of hydrogen fluoride will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-489328