Back to results
US 5,284,643 AGranted
Gallium-containing zeolite MCM-22
AssigneeMobil Oil Corporation
InventorsRoger A. Morrison, Mae K. Rubin
Life of this patent
Estimating the term…
Abstract
There is provided a gallium-containing MCM-22 zeolite. There are also provided methods for making this zeolite and processes for using this zeolite as a catalyst for the conversion of organic molecules. Particular conversions are reforming and the dehydrogenation of methylcyclohexane to form toluene.
Claims5
A gallium-containing MCM-22 zeolite having a composition comprising the molar relationship
- X.sub.2 O.sub.3 :(n)YO.sub.2
- where n is at least about 10, X is at least one trivalent element, and Y is at least one tetravalent element, wherein X comprises gallium.
A method for making a gallium-containing MCM-22 zeolite having a composition comprising the molar relationship
- X.sub.2 O.sub.3 :(n)YO.sub.2
- where n is at least about 10, X is at least one trivalent element, and Y is at least one tetravalent element, wherein X comprises gallium, said method comprising preparing a reaction mixture capable of forming said material upon crystallization, said reaction mixture containing sufficient amounts of alkali or alkaline earth metal cations, a source of tetravalent Y oxide, a source of trivalent Y oxide comprising a source of gallium oxide, water and hexamethyleneimine, and maintaining said reaction mixture under sufficient crystallization conditions until crystals of said material are formed.
Dependencies are inferred from the claim text.