Method for producing fluorine mica

Details Method for producing fluorine mica Method for producing fluorine mica

1991-09-25

1993-04-20

Straub, Gary P.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

423332, 4233281, 501122, 501151, 106DIG3, 252378R, 428363, C01B 700, B22B 1516

Patent

active

052040780

ABSTRACT:
The present invention is a method for producing swellable or nonswellable fluorine mica at a relatively lower temperature by heating a powdery mixture comprising 10 to 35% by weight of an alkali silicofluoride as the main component optionally together with an alkali fluoride and the balance of talc. This fluorine mica is used for pigments, etc.

REFERENCES:
patent: 3001571 (1961-09-01), Hatch
patent: 3057741 (1962-10-01), Moore
patent: 4067819 (1978-01-01), Daimon et al.
patent: 4486546 (1984-12-01), Murakami et al.
patent: 5023065 (1991-06-01), Ohno et al.
patent: 5049237 (1991-09-01), Bohrn et al.
patent: 5094852 (1992-03-01), Ohno et al.
Abstract of Japanese Patent #1215/1984 `Fluorinated mica prodn.-by mixing talc powder with alkali metal fluoride powder and heating mixture`, Abstract No. J57082114 (Jan. 1984).
Abstract of Japanese unexamined pat. pub. #201616/1986 `Production of swelling mica` Tateyama et al. (Sep. 1986).

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