Zirconia-pillared clays and micas

Details Zirconia-pillared clays and micas Zirconia-pillared clays and micas

C - Chemistry, Metallurgy

01

B

C01B 33/26 (2006.01) B01J 21/06 (2006.01) B01J 21/16 (2006.01) B01J 29/04 (2006.01)

Patent

CA 2092464

The present invention is directed to improved zirconia- pillared clays exhibiting high crystallinity and layer spacing and significantly higher thermal stability prepared using zirconyl acetate as the pillaring agent by: (a) mixing a clay selected from the group consisting of smectite clays and fluoromicas with a solution of zirconyl acetate for a time and at a temperature sufficient to form a pillared clay product; (b) separating said pillared clay product formed from the solution; (c) washing the separated pillared clay product with water; (d) drying the separated, washed pillared clay product at a temperature from about 50 to 200°C; (e) calcining the dried pillared clay product at a temperature from about 300 to 700°C.

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