Preparation of aqueous suspensions of talc

Details Preparation of aqueous suspensions of talc Preparation of aqueous suspensions of talc

C - Chemistry, Metallurgy

01

B

6/212

C01B 33/22 (2006.01) C09C 1/28 (2006.01) D21H 19/40 (2006.01)

Patent

CA 1166404

ABSTRACT: In order to make talc more readily dispersible in an aqueous medium, it is contacted, in a finely divided form, with an aqueous solution of an alkali metal hydroxide or ammonium hydroxide, it is then washed with clean water, whereafter it is thermally dried to remove at least a substantial proportion of the water associated therewith. The talc thus treated can be suspended in water containing a dispersing agent.

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