Zinc phosphate molecular sieves and their use in adsorption...

Details Zinc phosphate molecular sieves and their use in adsorption... Zinc phosphate molecular sieves and their use in adsorption...

C - Chemistry, Metallurgy

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C01G 45/00 (2006.01) B01D 15/00 (2006.01) B01J 20/04 (2006.01) B01J 20/06 (2006.01) B01J 29/82 (2006.01) C01B 39/54 (2006.01) B01J 29/02 (1990.01)

Patent

CA 2072308

"ZINC PHOSPHATE MOLECULAR SIEVES AND THEIR USE IN ADSORPTION AND CATALYSIS" ABSTRACT Zinc phosphate molecular sieves are disclosed. These molecular sieves have a three-dimensional microporous framework structure of ZnO2 and PO2 tetrahedral units, an intracrystalline pore system and an empirical chemical composition on an anhydrous basis expressed as ratio of the oxides by the formula: rM2O:sZnO:P2O5, where M is at least one alkali metal, r ranges from 0.9to 1.5 and s ranges from 1.8 to 3Ø These molecular sieves are prepared by hydrothermal crystallization of a reaction mixture prepared by combining a reactive source of phosphorus, zinc, at least one alkali metal and water. Adsorption and hydrocarbon conversion processes using these molecular sieves are also disclosed.

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