×

Preparation of aluminosilicate zeolites

  • US 5,558,851 A
  • Filed: 09/20/1994
  • Issued: 09/24/1996
  • Est. Priority Date: 12/16/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for preparing a crystalline zeolite, said method comprising:

  • a. preparing a reaction mixture comprising at least one active source of a first oxide selected from the group consisting of an oxide of silicon, germanium or both, optionally at least one active source of a second oxide selected from the group consisting of an oxide of aluminum, boron, gallium, iron or a mixture thereof, an organic templating agent capable of forming said crystalline zeolite, and sufficient water to shape said mixture; and

    b. heating said reaction mixture at crystallization conditions and in the absence of an added external liquid phase for sufficient time to form a crystallized material containing crystals of said zeolite, wherein said zeolite crystals have a first oxide/second oxide molar ratio greater than 12.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×