US4537909A
Expired / Lapsed
US
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Alcohol synthesis
Assignee: Phillips Petroleum Co
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Filing: 1984-02-28
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Granted: 1985-08-27
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Expires: 2004-02-28
Abstract
Abstract The preparation of alcohols from synthesis gas has been beneficiated by the use of a novel five-component catalyst system comprising an iron group metal and an activity improving amount of a precious metal such as rhodium.
Inventors
- 👤 Fan-Nan Lin
- 👤 Filippo Pennella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:09
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/153; C07C29/156; C07C29/157; C07C29/158; C12; C12C; C12C11/00; C12C11/02; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
110 words
A process for the production of alcohols from synthesis gas which comprises contacting a synthesis gas under suitable reaction conditions with a catalyst consisting of: (a) at least one copper component, (b) at least one iron group metal component, (c) at least one metal component other than compounds (b) having a Periodic element number of 23 to 26, (d) at least one alkali metal component, and (e) a promoting amount of about 0.1 to about 5 weight percent of at least one rhodium component, which promoting amount is a small effective amount sufficient to increase catalyst activity and catalyst life without significantly changing selectivity in comparison with the unpromoted catalyst.
Claim 2
Dependent Claim
110 words
A process for the production of alcohols from synthesis gas which comprises contacting a synthesis gas under suitable reaction conditions with a catalyst consisting of: (a) at least one copper component, (b) at least one iron group metal component, (c) at least one metal component other than compounds (b) having a Periodic element number of 23 to 26, (d) at least one alkali metal component, and (e) a promoting amount of about 0.1 to about 5 weight percent of at least one rhodium component, which promoting amount is a small effective amount sufficient to increase catalyst activity and catalyst life without significantly changing selectivity in comparison with the unpromoted catalyst.
Claim 3
Dependent Claim
16 words
A process for preparing alcohols from synthesis gas according to claim 1 wherein (b) is cobalt.
Claim 4
Dependent Claim
20 words
A process for preparing alcohols from synthesis gas according to claim 1 wherein (c) is chromium, iron, vanadium, or manganese.
Claim 5
Dependent Claim
16 words
A process according to claim 1 wherein carbon dioxide is also present in the synthesis gas.
Claim 6
Dependent Claim
16 words
A process according to claim 1 wherein the catalyst contains copper, cobalt, chromium, potassium, and rhodium.
Claim 7
Dependent Claim
19 words
A process according to claim 5 wherein the synthesis gas feed comprises hydrogen, carbon monoxide, carbon dioxide and nitrogen.
Claim 8
Dependent Claim
30 words
A process according to claim 1 wherein the reaction temperature ranges from about 200° to about 350° C. and the reaction pressure ranges from about 300 to about 3,000 psi.
Claim 9
Dependent Claim
84 words
A process for preparing alcohols from synthesis gas comprising the step of contacting synthesis gas feed with a catalyst consisting of the following elements: (a) about 15 to about 70 weight percent copper, (b) about 5 to about 50 weight percent cobalt, (c) about 5 to about 50 weight percent of at least one element selected from chromium, iron, vanadium, and manganese, (d) about 0.1 to about 10 weight percent of an alkali metal, and (e) about 0.1 to about 5 weight percent rhodium.
Claim 10
Dependent Claim
84 words
A process for preparing alcohols from synthesis gas comprising the step of contacting synthesis gas feed with a catalyst consisting of the following elements: (a) about 15 to about 70 weight percent copper, (b) about 5 to about 50 weight percent cobalt, (c) about 5 to about 50 weight percent of at least one element selected from chromium, iron, vanadium, and manganese, (d) about 0.1 to about 10 weight percent of an alkali metal, and (e) about 0.1 to about 5 weight percent rhodium.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |