Preparation of X zeolite

Patent metadata

Field	Value
Publication number	US-8992884-B2
Application number	US-69071810-A
Country	US
Kind code	B2
Filing date	Jan 20, 2010
Priority date	Nov 30, 2009
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

A method is disclosed for preparing crystalline aluminosilicate X zeolite from a reaction mixture containing only sufficient water to produce X zeolite. In one embodiment, the reaction mixture is self-supporting and may be shaped if desired. In the method, the reaction mixture is heated at crystallization conditions and in the absence of an added external liquid phase, so that excess liquid need not be removed from the crystallized product prior to drying the crystals.

First claim

What is claimed is:

1. A method for preparing crystalline X zeolite from a reaction mixture, said method comprising:
(a) preparing a self-supporting reaction mixture comprising at least one active, non-zeolitic source of silica, at least one active, non-zeolitic source of alumina, and a source of hydroxide in amounts sufficient to produce X zeolite, and sufficient water to produce X zeolite;
(b) aging the mixture at a temperature from about 25° C. to about 60° C. for at least 24…

Assignees

• Miller Stephen J
• Chevron Usa Inc

Inventors

• Miller Stephen J

Classifications

• C01B39/22 Primary

  Chemistry & Metallurgy · mapped topic

• B01J20/28004

  Operations & Transport · mapped topic

• B01J20/186

  Operations & Transport · mapped topic

• B01J29/082

  Operations & Transport · mapped topic

• B01J20/28019

  Operations & Transport · mapped topic