Crystalline silicas

Details Crystalline silicas Crystalline silicas

C - Chemistry, Metallurgy

01

B

23/192

C01B 33/18 (2006.01) B01J 29/035 (2006.01) B01J 29/70 (2006.01) C01B 37/02 (2006.01) C07C 2/66 (2006.01)

Patent

CA 1250129

CRYSTALLINE SILICAS ABSTRACT OF THE DISCLOSURE A novel crystalline silica composition having a silica to alumina atomic ratio not lower than 80 and having a certain specific X-ray diffraction pattern after calcination in air for at least 3 hours at a temperature of at least 500°C.

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