Method of preparing a metal-cation-deficient crystalline borosilicate
AssigneeStandard Oil Company (Indiana)
InventorsMarvin R. Klotz, Stephen R. Ely
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Abstract
There is disclosed a method for preparing a metal-cation-deficient crystalline borosilicate, which method comprises: (1) preparing a mixture containing an oxide of silicon that is substantially free of metal cations, an oxide of boron, ammonium hydroxide, alkylammonium cation or a precursor of an alkylammonium cation, and water; and (2) maintaining the mixture at suitable reaction conditions to effect formation of the borosilicate. There are also disclosed the crystalline borosilicate that results from the above-described method of preparation and uses of that borosilicate.
Claims10
A method for preparing a metal-cationdeficient borosilicate, which method comprises:
- (1) preparing a mixture containing an oxide of silicon which is substantially free of metal cations, an oxide of boron, ammonium hydroxide, alkylammonium cation or a precursor of an alkylammonium cation, and water;
- and (2) maintaining said mixture at suitable reaction conditions to effect formation of said borosilicate, said reaction conditions comprising a reaction temperature within the range of about 25.degree. C. (77.degree. F.) to about 300.degree. C. (572.degree. F.), a pressure of at least the vapor pressure of water at the reaction temperature, and a reaction time that is sufficient to effect crystallization.
Dependencies are inferred from the claim text.