Production of alunites

Details Production of alunites Production of alunites

1989-07-19

1993-11-02

Lewis, Michael

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423127, 423551, 423548, 423556, 423600, 423545, C01F 100, C01F 702, C01C 124, C01D 500

Patent

active

052581683

ABSTRACT:
Disclosed is a method for preparing high purity alunite. In the method, a material selected from the group consisting of sodium sulfate, sodium bisulfate, ammonium sulfate, ammonium bisulfate, potassium sulfate and potassium bisulfate is provided and reacted with a source of aluminum hydroxide in a liquid. The reaction is carried out under acidic conditions, and alunite is recovered after separating, washing and drying.

REFERENCES:
patent: 3226186 (1965-12-01), Bretsznajder et al.
patent: 3226187 (1965-12-01), Bretsznajder et al.
patent: 3436176 (1969-01-01), Spedden et al.
patent: 3954957 (1976-05-01), Koenig
"Conditions of Alunite Synthesis", Kashkai, Probl. Metasomatizma, pp. 361-368, Ref. Zh., Geol. V. 1971, Abstr. #3v619, 53 Mineralogical and Geological Chemistry, 1970.

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