Leaching tremolite impurity from talc

Details Leaching tremolite impurity from talc Leaching tremolite impurity from talc

1975-06-16

1976-06-22

Meros, Edward J.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

106306, 423331, C01B 3324

Patent

active

039652416

ABSTRACT:
A process for removing tremolite impurity from talc by subjecting finely ground talc to a combination of steps including froth flotation and pressure leaching with a strong acid at an elevated temperature. The recovered talc is characterized by a tremolite content of less than 1.0 percent by weight.

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patent: 3806043 (1974-04-01), Roe
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patent: 3932194 (1976-01-01), Lamar
patent: 3939249 (1976-02-01), Huege
abido, "Chemical Abstracts," vol. 78, 1973, 87377k.

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