US5068096A
Expired / Lapsed
US
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Synthesis of crystalline silicate MCM-47
Assignee: Mobil Oil AS
•
Filing: 1991-04-08
•
Granted: 1991-11-26
•
Expires: 2011-04-08
Abstract
Abstract This invention relates to a new form of crystalline material identified as zeolite MCM-47, to a new and useful improvement in synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
Inventors
- 👤 Ernest W. Valyocsik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:00
CPC Classifications
C; C01; C01B; C01B39/00; C01B39/02; C01B39/46; C01B39/48; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; C01B33/00; C01B33/113; C01B33/12; C01B33/18; C01B33/181; C01B33/185; C01P; C01P2002/00; C01P2002/70; C01P2002/72
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
142 words
A method for synthesizing crystalline material exhibiting a characteristic X-ray diffraction pattern including d-spacing maxima values, in Angstroms, as follows: 10.9±0.15 6.91±0.08 6.23±0.08 5.18±0.05 4.90±0.05 4.35±0.05 4.17±0.03 3.86±0.03 3.81±0.03 3.78±0.03 3.67±0.03 3.57±0.03 3.48±0.03 which comprises (i) preparing a mixture capable of forming said material, said mixture comprising sources of alkali or alkaline earth metal (M), an oxide of trivalent element (X), an oxide of tetravalent element (Y), water and bis(methylpyrrolidinium)-DIQUAT-4 directing agent (R), and having a composition, in terms of mole ratios, within the following ranges: ______________________________________
YO.sub.2 /X.sub.2 O.sub.3
200 to ∞
H.sub.2 O/YO.sub.2
5 to 400
OH.sup.- /YO.sub.2
0 to 1.0
M/YO.sub.2 0 to 2.0
R/YO.sub.2 0.005 to 2.0
______________________________________ (ii) maintaining said mixture under sufficient conditions until crystals of said material are formed; and (iii) recovering said crystalline material from step (ii), said recovered crystalline material containing said R.
Claim 2
Independent Claim
142 words
A method for synthesizing crystalline material exhibiting a characteristic X-ray diffraction pattern including d-spacing maxima values, in Angstroms, as follows: 10.9±0.15 6.91±0.08 6.23±0.08 5.18±0.05 4.90±0.05 4.35±0.05 4.17±0.03 3.86±0.03 3.81±0.03 3.78±0.03 3.67±0.03 3.57±0.03 3.48±0.03 which comprises (i) preparing a mixture capable of forming said material, said mixture comprising sources of alkali or alkaline earth metal (M), an oxide of trivalent element (X), an oxide of tetravalent element (Y), water and bis(methylpyrrolidinium)-DIQUAT-4 directing agent (R), and having a composition, in terms of mole ratios, within the following ranges: ______________________________________
YO.sub.2 /X.sub.2 O.sub.3
200 to ∞
H.sub.2 O/YO.sub.2
5 to 400
OH.sup.- /YO.sub.2
0 to 1.0
M/YO.sub.2 0 to 2.0
R/YO.sub.2 0.005 to 2.0
______________________________________ (ii) maintaining said mixture under sufficient conditions until crystals of said material are formed; and (iii) recovering said crystalline material from step (ii), said recovered crystalline material containing said R.
Claim 3
Dependent Claim
39 words
The method of claim 1 wherein said mixture has the following composition ranges: ______________________________________
YO.sub.2 /X.sub.2 O.sub.3
300 to 10,000
H.sub.2 O/YO.sub.2 20 to 100
OH.sup.-- /YO.sub.2 0.05 to 0.4
M/YO.sub.2 0.10 to 1.0
R/YO.sub.2 0.05 to 1.0.
______________________________________
Claim 4
Dependent Claim
22 words
The method of claim 1 wherein said mixture further comprises seed crystals in sufficient amount to enhance synthesis of said crystalline material.
Claim 5
Dependent Claim
15 words
The method of claim 3 wherein said seed crystals have the structure of MCM- 47.
Claim 6
Dependent Claim
38 words
The method of claim 1 wherein X is selected from the group consisting of aluminum, boron, iron, gallium, indium and mixtures thereof, and said Y is selected from the group consisting of silicon, germanium, tin and mixtures thereof.
Claim 7
Dependent Claim
13 words
The method of claim 1 wherein X comprises aluminum and Y comprises silicon.
Claim 8
Dependent Claim
103 words
A mixture capable of forming crystals of MCM-47 structure upon crystallization, said mixture comprising sources of alkali or alkaline earth metal (M), trivalent element (X) oxide selected from the group consisting of oxide of aluminum, boron, iron, gallium, indium and mixtures thereof; tetravalent element (Y) oxide selected from the group consisting of oxide of silicon, germanium, tin and mixtures thereof; water and bis(methylpyrrolidinium)-DIQUAT-4 (R), and having a composition, in terms of mole ratios, within the following ranges: ______________________________________
YO.sub.2 /X.sub.2 O.sub.3
200 to ∞
H.sub.2 O/YO.sub.2 20 to 100
OH.sup.-- /YO.sub.2 0.05 to 0.4
M/YO.sub.2 0.10 to 1.0
R/YO.sub.2 0.05 to 1.0.
______________________________________
Claim 9
Dependent Claim
103 words
A mixture capable of forming crystals of MCM-47 structure upon crystallization, said mixture comprising sources of alkali or alkaline earth metal (M), trivalent element (X) oxide selected from the group consisting of oxide of aluminum, boron, iron, gallium, indium and mixtures thereof; tetravalent element (Y) oxide selected from the group consisting of oxide of silicon, germanium, tin and mixtures thereof; water and bis(methylpyrrolidinium)-DIQUAT-4 (R), and having a composition, in terms of mole ratios, within the following ranges: ______________________________________
YO.sub.2 /X.sub.2 O.sub.3
200 to ∞
H.sub.2 O/YO.sub.2 20 to 100
OH.sup.-- /YO.sub.2 0.05 to 0.4
M/YO.sub.2 0.10 to 1.0
R/YO.sub.2 0.05 to 1.0.
______________________________________
Claim 10
Dependent Claim
64 words
The method of claim 1 comprising replacing ions of the crystalline material recovered in step (iii), at least in part, by ion exchange with an ion or a mixture of ions selected from the group consisting of hydrogen and hydrogen precursors, rare earth metals and metals from Groups IIA, IIIA, IVA, IB, IIB, IIIB, IVB, VIB and VIII of the Periodic Table of Elements.
Claim 11
Dependent Claim
64 words
The method of claim 2 comprising replacing ions of the crystalline material recovered in step (iii), at least in part, by ion exchange with an ion or a mixture of ions selected from the group consisting of hydrogen and hydrogen precursors, rare earth metals and metals from Groups IIA, IIIA, IVA, IB, IIB, IIIB, IVB, VIB and VIII of the Periodic Table of Elements.
Claim 12
Dependent Claim
15 words
The method of claim 8 wherein said replacing ion is hydrogen or a hydrogen precursor.
Claim 13
Dependent Claim
15 words
The method of claim 9 wherein said replacing ion is hydrogen or a hydrogen precursor.
Claim 14
Dependent Claim
7 words
The recovered crystalline material of claim 1.
Claim 15
Dependent Claim
7 words
The recovered crystalline material of claim 2.
Claim 16
Dependent Claim
8 words
The R-containing product crystalline material of claim 8.
Claim 17
Dependent Claim
8 words
The R-containing product crystalline material of claim 9.
Claim 18
Dependent Claim
8 words
The R-containing product crystalline material of claim 10.
Claim 19
Dependent Claim
8 words
The R-containing product crystalline material of claim 11.
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