Binderless zeolite extrudates and method of producing

Details Binderless zeolite extrudates and method of producing Binderless zeolite extrudates and method of producing

B - Operations, Transporting

01

J

252/2.A

B01J 21/16 (2006.01) B01J 20/18 (2006.01) B01J 29/06 (2006.01) B01J 37/00 (2006.01)

Patent

CA 1175410

Abstract of the Disclosure Binderless zeolite sieve extrudates are made by extruding a mixture containing about 40-60% zeolites with the remainder being a metakaolin clay that has mixed with it about 90-120% of the stoichiometric amount of sodium hydroxide to convert the clay to a zeolite. After extrusion the particles are allowed to dry age during which time most of the clay is converted to the zeolite. A further heat treatment in a dilute caustic aqueous solution insures complete crystallization with subsequent washing and calcination to produce an adsorbent product. -2-

390910

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