C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
252/33, 252/51.A
C01B 33/26 (2006.01) B01J 29/04 (2006.01)
Patent
CA 1242685
ABSTRACT RANDOMLY INTERSTRATIFIED CLAYS Randomly interstratified clay is synthesised by:- (i) saturating (replacing all the exchangeable cations of) a first clay with alkali metal ions (preferably Na+ or Li+), removing any excess alkali metal ions, and forming the saturated clay into a suspension containing no suspended particles exceeding 10-7m equivalent spherical diameter, (ii) saturating a second clay with alkali metal ions (prefer- ably Na+ or Li+), removing any excess alkali metal ions, and forming the saturated clay into a suspension contain- ing no suspended particles exceeding 10-7m equivalent spherical diameter, (iii) mixing the suspensions from (i) and (ii) to form a mixed suspension, and (iv) sedimenting and optionally drying the mixed suspension, the sediment being the synthetic randomly interstratified clay. A wider range of synthetic clay compositions is thereby made available for use as catalysts, sorbents etc.
475512
Gowling Lafleur Henderson Llp
National Research Development Corporation
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