Precipitated silicas, process for producing same and their use

Details Precipitated silicas, process for producing same and their use Precipitated silicas, process for producing same and their use

C - Chemistry, Metallurgy

01

B

33/194, 167/320.

C01B 33/154 (2006.01) C09C 1/30 (2006.01) A61K 7/16 (1990.01)

Patent

CA 1331503

ABSTRACT OF THE DISCLOSURE A process for producing silicas having a cleaning, polishing and thickening effect and being intended for use as dentifrices. This process is characterized in that the sili- cas obtained in a conventional manner by precipitation and having varying particle sizes and particle densities are homo- geneously mixed with each other in the suspension phase and that the mixtures are further treated in the usual manner by filtering, drying and grinding.

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