Process for producing highly pure magnesium hydroxide

Details Process for producing highly pure magnesium hydroxide Process for producing highly pure magnesium hydroxide

1985-01-22

1987-09-15

Doll, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

423165, 423636, 423638, 423639, C01F 1104

Patent

active

046938729

ABSTRACT:
A process for producing highly pure magnesium hydroxide, which comprises reacting magnesium hydroxide starting material containing impurities, with an aqueous solution containing a water-soluble calcium salt and carbon dioxide to form an aqueous solution containing a magnesium salt and calcium carbonate precipitates whereby said impurities are transferred to the precipitates, filtering off the precipitates, then reacting the aqueous solution containing the magnesium salt, with ammonia to form a slurry comprising magnesium hydroxide solid and an aqueous solution containing an ammonium salt, and filtering the slurry to obtain highly pure magnesium hydroxide solid and an aqueous solution containing the ammonium salt.

REFERENCES:
patent: 1197512 (1916-09-01), Lord
patent: 1348933 (1920-08-01), Dolbear
patent: 1986509 (1935-01-01), MacIntire
patent: 2659661 (1953-11-01), Keitel
patent: 2705185 (1955-03-01), Kamlet
patent: 3393976 (1968-07-01), Housh
patent: 3787558 (1974-01-01), Briggs et al.
patent: 4497781 (1985-02-01), Spoors et al.
patent: 4508690 (1985-04-01), Obrist et al.
Chemical Abstracts, vol. 102, No. 6, Feb. 1985, p. 139, No. 48209b, Columbus, OH; and RO-A-82 222 (D. Barzu et al.) 30-07-1983.

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