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Synthetic crystal MCM-35

Assignee: ExxonMobil Oil Corp
•
Filing: 1990-01-26
•
Granted: 1991-01-01
•
Expires: 2010-01-26
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Abstract

Abstract This invention relates to a new synthetic 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.

Inventors

  • 👤 Mae K. Rubin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 12:06
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; C; C01; C01B; C01B39/00; C01B39/02; C01B39/46; C01B39/48; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42

Claims Analysis

Total Claims: 20
Claim 1
Independent Claim 26 words
A synthetic crystalline material characterized by an X-ray diffraction pattern exhibiting interplanar d-spacing values including those at 15.4±0.23; 9.03±0.14; 6.62±0.10; 4.99±0.07; 4.04±0.05; 3.31±0.04; and 2.00±0.03 Angstroms.
Claim 2
Dependent Claim 26 words
A synthetic crystalline material characterized by an X-ray diffraction pattern exhibiting interplanar d-spacing values including those at 15.4±0.23; 9.03±0.14; 6.62±0.10; 4.99±0.07; 4.04±0.05; 3.31±0.04; and 2.00±0.03 Angstroms.
Claim 3
Dependent Claim 34 words
The crystalline material of claim 1 having a composition comprising the molar relationship X.sub.2 O.sub.3 :(n)YO.sub.2 wherein n is at least about 30, X is a trivalent element and Y is a tetravalent element.
Claim 4
Dependent Claim 69 words
The crystalline material of claim 1 having an as-synthesized composition on an anhydrous basis and in terms of moles of oxides per n moles of YO 2 , expressed by the formula: (0.1 to 0.8)M.sub.2 O:(0.5 to 4)R.sub.2 O:X.sub.2 O.sub.3 :nYO.sub.2 wherein R is an organic, M is an alkali metal cation, n is at least about 30, X is a trivalent element and Y is a tetravalent element.
Claim 5
Dependent Claim 15 words
The crystalline material of claim 2 wherein n is from about 40 to about 200.
Claim 6
Dependent Claim 11 words
The crystalline material of claim 3 wherein said R is hexamethyleneimine.
Claim 7
Dependent Claim 60 words
The crystalline material comprising the crystalline material of claim 3 having original cations replaced, at least in part, with a cation or a mixture of cations selected from the group consisting of hydrogen and hydrogen precursors, rare earth metals, and metals of Groups IIA, IIIA, IVA, IB, IIB, IIIB, IVB, VIB and VIII of the Periodic Table of the Elements.
Claim 8
Dependent Claim 14 words
The crystalline material resulting from thermal treatment of the crystalline material of claim 3.
Claim 9
Dependent Claim 14 words
The crystalline material resulting from thermal treatment of the crystalline material of claim 6.
Claim 10
Dependent Claim 14 words
The crystalline material of claim 4 wherein X is aluminum and Y is silicon.
Claim 11
Dependent Claim 22 words
The crystalline material of claim 3 wherein n is from about 40 to about 200, X is aluminum and Y is silicon.
Claim 12
Dependent Claim 138 words
A method for preparing the synthetic crystalline material of claim 3, said method comprising preparing a reaction mixture capable of forming said material upon crystallization, said reaction mixture containing sufficient amounts of alkali metal cations (M), trivalent element (X) oxide, tetravalent element (Y) oxide, hexamethyleneimine (R) and water, said trivalent element being selected from the group consisting of aluminum, boron, iron and gallium, said tetravalent element being selected from the group consisting of silicon and germanium, said reaction mixture having a composition in terms of mole ratios within the following ranges: ______________________________________ YO.sub.2 /X.sub.2 O.sub.3 = 30 to 200 H.sub.2 O/YO.sub.2 = 10 to 100 OH.sup.- /YO.sub.2 = 0.01 to 0.2 M/YO.sub.2 = 0.01 to 1.0 R/YO.sub.2 = 0.1 to 1.0 ______________________________________ and maintaining said reaction mixture under sufficient crystallization conditions until crystals of said material are formed.
Claim 13
Dependent Claim 52 words
The method of claim 11 wherein said reaction mixture has a composition in terms of mole ratios within the following ranges: ______________________________________ YO.sub.2 /X.sub.2 O.sub.3 = 50 to 150 H.sub.2 O/YO.sub.2 = 15 to 40 OH.sup.- /YO.sub.2 = 0.02 to 0.1 M/YO.sub.2 = 0.05 to 0.3 R/YO.sub.2 = 0.1 to 0.5 ______________________________________
Claim 14
Dependent Claim 20 words
The method of claim 11 wherein said reaction mixture further comprises a sufficient amount of crystal formation enhancing seed crystals.
Claim 15
Dependent Claim 16 words
The crystalline material of claim 6 wherein said replacing cations comprise hydrogen or a hydrogen precursor.
Claim 16
Dependent Claim 12 words
The crystalline material of claim 6 wherein said replacing cations comprise metals.
Claim 17
Dependent Claim 12 words
A composition comprising the crystalline material of claim 1 and a matrix.
Claim 18
Dependent Claim 10 words
The composition of claim 16 wherein said matrix comprises alumina.
Claim 19
Dependent Claim 10 words
The composition of claim 16 wherein said matrix comprises silica.
Claim 20
Dependent Claim 15 words
The composition of claim 16 wherein said matrix comprises magnesia, zirconia, thoria, beryllia or titania.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-12-31 1994-07-02 1995-01-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-12-31 1998-07-02 1999-01-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-12-31 2002-07-02 2003-01-01 $7700.00 Window Closed / Lapsed

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