Texaco Inc.

Stanley Kravitz

John H Estes

Robert M Suggitt

John T Brandenburg

An amorphous powder useful as a precursor for the preparation of crystalline aluminosilicates is prepared by forming a sodium aluminum silicate water mixture whose composition falls within specified ranges for forming sodium zeolite A. By dehydrating the mixture with a water miscible solvent prior to aging and crystal formation, an amorphous powder is recovered for future use. Upon subsequent treatment the amorphous powder can be converted to crystalline aluminosilicates including type 3A, 4A, 5A, X and Y.

Crystalline aluminosilicate percursor

A novel reaction chamber includes a gravity-packed bed formed of an attenuated support medium bearing solidified fused-solid whereby the bed is formed into a matrix which is particularly useful as a catalytic conversion chamber, a muffler, etc.

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Fishkill, NY, United States of America

Stanley Kravitz