Treatment of zeolites

Details Treatment of zeolites Treatment of zeolites

B - Operations, Transporting

01

J

260/675, 252/2.C

B01J 37/26 (2006.01) B01J 29/40 (2006.01) B01J 29/65 (2006.01) B01J 29/70 (2006.01)

Patent

CA 1211424

- 15 - ABSTRACT The acid activity of catalysts comprising a zeo- lite, particularly a highly siliceous zeolite, in a matrix such as alumina is enhanced by treatment with aqueous monovalent fluoride followed by conversion of the zeolite to the hydrogen form. Suitable monovalent cations are alkali metal, ammonium and hydrogen. It is preferred to convert to the hydrogen form by ammonium exchange followed by calcination.

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