Process for the production of molecular sieves
AssigneeUop LLC
InventorsWilliam H. Flank, Stephen T. Wilson, Julio C. Marte, Edith M. Flanigen
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Abstract
Non-zeolitic molecular sieves are prepared by contacting a body of alumina or silica-alumina (optionally containing reactive sources of phosphorus pentoxide and/or other elements desired in the non-zeolitic molecular sieve) with a liquid reaction mixture containing a reactive source of phosphorus pentoxide (and optionally reactive sources of silica and/or other elements desired in the non-zeolitic molecular sieve), and an organic templating agent, thereby causing the body to react with the liquid reaction mixture and to form crystals of the non-zeolitic molecular sieve within the body.
Claims61
A process for the production of a crystalline non-zeolitic molecular sieve in a preformed body of alumina or silica-alumina, which process comprises contacting this body with a liquid reaction mixture containing a reactive source of phosphorus. pentoxide, and an organic templating agent, the contacting being effected at a time and temperature so as to cause the body to react with the liquid reaction mixture and to form crystals of the non-zeolitic molecular sieve within the body.
A process for the production of an aluminophosphate as claimed in U.S. Pat..No. 4,310,440, which process comprises contacting at an effective temperature and for an effective time, a body of alumina with a liquid reaction mixture containing a reactive source of phosphorus pentoxide, and an organic templating agent, thereby causing the body to react with the liquid reaction mixture and to form a body of the aluminophosphate.
A process for the production of a crystalline silicoaluminophosphate as claimed in U.S. Pat. No. 4,440,871 in a preformed body of alumina or silica-alumina, which process comprises contacting this body with a liquid reaction mixture containing a reactive source of phosphorus pentoxide, and an organic templating agent, at least one of the body and the liquid reaction mixture containing a reactive source of silicon, the contacting being effected at a time and temperature so as to cause the body to react with the liquid reaction mixture and to form crystals of the silicoaluminophosphate within the body.
Dependencies are inferred from the claim text.