US4072733A
Expired / Lapsed
US
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Conversion of methanol and dimethyl ether
Assignee: Albemarle Corp
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Filing: 1976-04-02
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Granted: 1978-02-07
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Expires: 1996-04-02
Abstract
Abstract Catalytic process for converting methanol and dimethyl ether to higher hydrocarbons comprising contacting the methanol and/or dimethyl ether with an alumina, silica, or zirconia-supported aluminum sulfate catalyst, at an elevated temperature.
Inventors
- 👤 Duane C. Hargis
- 👤 Lawrence J. Kehoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:32
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/20; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2527/00; C07C2527/02; C07C2527/053
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
Process for conversion of methanol, dimethyl ether, or a mixture of methanol and dimethyl ether, comprising contacting said methanol, dimethyl ether or a mixture of methanol and dimethyl ether with a catalyst at a temperature of from about 200° to about 400° C. to convert said methanol, dimethyl ether or mixture of methanol and dimethyl ether to a higher hydrocarbon having two or more carbon atoms, said catalyst comprising partially hydrated aluminum sulfate.
Claim 2
Dependent Claim
73 words
Process for conversion of methanol, dimethyl ether, or a mixture of methanol and dimethyl ether, comprising contacting said methanol, dimethyl ether or a mixture of methanol and dimethyl ether with a catalyst at a temperature of from about 200° to about 400° C. to convert said methanol, dimethyl ether or mixture of methanol and dimethyl ether to a higher hydrocarbon having two or more carbon atoms, said catalyst comprising partially hydrated aluminum sulfate.
Claim 3
Dependent Claim
26 words
The process of claim 1 wherein said aluminum sulfate contains about one or less than one mole of water of hydration per mole of aluminum sulfate.
Claim 4
Dependent Claim
27 words
The process of claim 2 wherein said aluminum sulfate is supported on a support selected from the class consisting of crystalline γ-alumina, crystalline silica, and crystalline zirconia.
Claim 5
Dependent Claim
11 words
The process of claim 3 wherein said support is crystalline γ-alumina.
Claim 6
Dependent Claim
11 words
The process of claim 3 wherein said support is crystalline silica.
Claim 7
Dependent Claim
11 words
The process of claim 3 wherein said support is crystalline zirconia.
References Cited (Backward Citations)
US2492984A
Cited
FR1111546A
Cited
GB1173128A
Cited
US3637889A
Cited
US3894106A
Cited
US3894107A
Cited
US3928483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |