Composition of synthetic porous crystalline material, its synthesis and use
AssigneeMobil Oil Corporation
InventorsMae K. Rubin, Pochen Chu
Life of this patent
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Abstract
This invention relates to a new synthetic porous crystalline material, a method for its preparation and use thereof in catalytic conversion of organic compounds. The new crystalline material exhibits a distinctive X-ray diffraction pattern and unusually large equilibrium adsorption capacities.
Claims30
A synthetic porous crystalline material characterized by an X-ray diffraction pattern in its calcined form including values substantially as set forth in Table III of the specification and having equilibrium adsorption capacities of greater than about 10 wt. % for water vapor, greater than about 4.5 wt. % for cyclohexane vapor and greater than about 10 wt. % for n-hexane vapor.
A method for preparing a synthetic crystalline material characterized by an X-ray diffraction pattern including values substantially as set forth in Table III of the specification and having equilibrium adsorption capacities of greater than about 10 wt. % for water vapor, greater than about 4.5 wt. % for cyclohexane vapor and greater than about 10 wt. % for n-hexane vapor, said crystalline material having a composition comprising the molar relationship
- X.sub.2 O.sub.3 :(n)YO.sub.2
- wherein n is at least about 10, X is a trivalent element and Y is a tetravalent element, 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 containing at least about 30 wt. % solid YO.sub.2, a source of trivalent X oxide, water and hexamethyleneimine, and maintaining said reaction mixture under sufficient crystallization conditions until crystals of said material are formed.
A method for preparing a synthetic crystalline material characterized by an X-ray diffraction pattern including values substantially as set forth in Table III of the specification and having equilibrium adsorption capacities of greater than about 10 wt. % for water vapor, greater than about 4.5 wt. % for cyclohexane vapor and greater than about 10 wt. % for n-hexane vapor, said crystalline material having a composition comprising the molar relationship
- X.sub.2 O.sub.3 :(n)YO.sub.2
- wherein n is at least about 10 to about 150, X comprises aluminum and Y comprises silicon, 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 silica containing at least about 30 wt. % solid silica, an oxide of aluminum, water and hexamethyleneimine, and maintaining said reaction mixture under sufficient crystallization conditions until crystals of said material are formed.
A synthetic porous crystalline material having the X-ray diffraction pattern of FIG. 1 after calcination.
A synthetic porous crystalline material having the X-ray diffraction pattern of FIG. 2 after calcination.
A synthetic porous crystalline material having the X-ray diffraction pattern of FIG. 3 after calcination.
A synthetic porous crystalline material having the X-ray diffraction pattern of FIG. 4 after calcination.
A synthetic porous crystalline material having the X-ray diffraction pattern of FIG. 5 after calcination.
Dependencies are inferred from the claim text.