Method of hydrolyzing metal halides

Details Method of hydrolyzing metal halides Method of hydrolyzing metal halides

1989-06-13

1992-01-14

Niebling, John

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

423492, 423592, C01B 703, C01G 3300

Patent

active

050808800

ABSTRACT:
A process relating to the hydrolysis of metal halides and their production of corresponding metal oxides by the hydrolysis of their chlorides and the calcining of the hydrolysis product is disclosed. Novel aspect including obviating the neutralizing step for the hydrochloric acid by using ammonia and disposing of the resulting ammonium chloride and the two step addition initially of metal halides to water until there is no observable positive heat of reaction and then adding the metal halide in amounts up to the stoichiometric quantity for the hydrolysis product obtained.

REFERENCES:
patent: 2303307 (1942-11-01), Tillman
patent: 2426788 (1947-09-01), Pall
patent: 3133788 (1964-05-01), Kern et al.
patent: 3852430 (1974-12-01), Lienau et al.
patent: 4741894 (1988-05-01), Melas
patent: 4948570 (1990-08-01), Sommers

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