US4666874A
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Stereodifferentiating hydrocarbon conversion zeolite catalysts
Assignee: Mobil Oil AS
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Filing: 1985-10-29
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Granted: 1987-05-19
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Expires: 2005-10-29
Abstract
Abstract A stereo-differentiating catalyst containing metal is prepared by contacting a metal-containing acidic molecular sieve material, such as a zeolite with an optically active base, such as amine. Methods are disclosed for utilizing the catalyst in hydrocarbon conversion processes, e.g., hydrogenation and hydroformylation.
Inventors
- 👤 Ralph M. Dessau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:01
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/40; B01J29/42; B01J29/44; C07C29/00; C07C29/132; C07C29/136; C07C29/143; C07C29/145; C07C45/00; C07C45/49; C07C45/50; C07C45/505; B01J29/08; B01J29/65; B01J29/70; C07B; C07B2200/00; C07B2200/07; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/08; C07C2529/10; C07C2529/40; C07C2529/42; C07C2529/65; C07C2529/66; C07C2529/70; C07C2529/72
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
47 words
A process for preparing an asymmetric synthesis catalyst which comprises contacting a metal-containing acidic molecular sieve material selected from the group consisting of zeolites and silicoaluminophosphates with an optically active Lewis base capable of adsorption by or complexing with acidic sites on said acidic molecular sieve material.
Claim 2
Dependent Claim
47 words
A process for preparing an asymmetric synthesis catalyst which comprises contacting a metal-containing acidic molecular sieve material selected from the group consisting of zeolites and silicoaluminophosphates with an optically active Lewis base capable of adsorption by or complexing with acidic sites on said acidic molecular sieve material.
Claim 3
Dependent Claim
24 words
The process of claim 1 wherein said base is selected from the group consisting of phosphines, alcohols, olefins, aromatics, esters, ketones, ethers, and acetylenes.
Claim 4
Dependent Claim
33 words
The process of claim 1 wherein said metal is selected from the group consisting of Groups IB, IIB, IIIA, IIIB, IVA, IVB, VA, VB, VIA, VIB, VIIA and VIII of the Periodic Table.
Claim 5
Dependent Claim
13 words
The process of claim 1, wherein said metal is a Group VIII metal.
Claim 6
Dependent Claim
14 words
The process of claim 1 wherein said acidic molecular sieve material is a silicoaluminophosphate.
Claim 7
Dependent Claim
14 words
The process of claim 1 wherein said acidic molecular sieve material is a zeolite.
Claim 8
Dependent Claim
28 words
The process of claim 6 wherein said zeolite has a silica to alumina ratio of less than about 300 and a Constraint Index of less than about 12.
Claim 9
Dependent Claim
35 words
The process of claim 1 wherein said acidic molecular sieve material is a zeolite having a silica to alumina ratio of at least about 12 and a Constraint Index ranging from about 1 to 12.
Claim 10
Dependent Claim
22 words
The process of claim 4 wherein said Group VIII metal is selected from the group consisting of Pt, Pd, Ru and Rh.
Claim 11
Dependent Claim
21 words
The process of claim 6 wherein said zeolite is selected from the group consisting of zeolite X, zeolite Y and ZSM-20.
Claim 12
Dependent Claim
28 words
The process of claim 6 wherein said zeolite is selected from the group consisting of zeolite beta, ZSM-5, ZSM-5/ZSM-11 intermediate, ZSM-11, ZSM-12, ZSM-23, ZSM-35, ZSM-38, ZSM-48 and ZSM-50.
Claim 13
Dependent Claim
54 words
A process for preparing asymmetric hydrogenation catalysts which comprises incorporating a Group VIII metal into an acidic molecular sieve material selected from the group consisting of zeolites and silicoaluminophosphates and reacting said material with an optically active Lewis base capable of adsorption by or complexing with acidic sites on said acidic molecular sieve material.
Claim 14
Dependent Claim
54 words
A process for preparing asymmetric hydrogenation catalysts which comprises incorporating a Group VIII metal into an acidic molecular sieve material selected from the group consisting of zeolites and silicoaluminophosphates and reacting said material with an optically active Lewis base capable of adsorption by or complexing with acidic sites on said acidic molecular sieve material.
Claim 15
Dependent Claim
14 words
The process of claim 12 wherein said acidic molecular sieve material is a zeolite.
Claim 16
Dependent Claim
24 words
The process of claim 13 wherein the metal-containing zeolite is exposed to reducing conditions prior to said reacting with an optically active Lewis base.
Claim 17
Dependent Claim
47 words
A chiral hydrogenating catalyst which is prepared by contacting a Group VIII-metal containing acidic molecular sieve material selected from the group consisting of zeolites and silicoaluminophosphates with an optically active Lewis base capable of adsorption by or complexing with acidic sites on said acidic molecular sieve material.
Claim 18
Dependent Claim
47 words
A chiral hydrogenating catalyst which is prepared by contacting a Group VIII-metal containing acidic molecular sieve material selected from the group consisting of zeolites and silicoaluminophosphates with an optically active Lewis base capable of adsorption by or complexing with acidic sites on said acidic molecular sieve material.
Claim 19
Dependent Claim
13 words
The catalyst of claim 15 wherein said molecular sieve material is a zeolite.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |