US4052472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mordenite conversion of alkanols to penta- and hexamethyl benzenes
Assignee: Mobil Oil AS
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Filing: 1976-01-16
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Granted: 1977-10-04
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Expires: 1996-01-16
Abstract
Abstract By catalytic contact with the crystalline alumino-silicate zeolite, mordenite, having a silica to alumina ratio greater than about 15, methanol and/or methyl ethers are catalytically condensed to a mixture of hydrocarbons including polyalkylated aromatic hydrocarbons.
Inventors
- 👤 Edwin Neil Givens
- 👤 Charles Joseph Plank
- 👤 Edward Joseph Rosinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:36
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/20; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/18; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
126 words
A method for converting aliphatic oxygenated organic compounds to hydrocarbon mixtures, which comprises: contacting a feed comprising one or more oxygenated organic compounds selected from the group consisting of methanol and methyl ethers of the lower alkanols with a mordenite catalyst having a silica to alumina ratio greater than 15 and a constraint index of less than about 1, said contacting being at a temperature from about 500° F to about 850° F, a pressure of 0.1 atmosphere to 50 atmospheres, and a W.H.S.V. of 0.1 to 30; and converting at least about 80% of said oxygenated organic compounds to water and a hydrocarbon mixture containing less than 10 weight percent methane and more than about 50% of C 9 , C 10 and heavier aromatics.
Claim 2
Independent Claim
126 words
A method for converting aliphatic oxygenated organic compounds to hydrocarbon mixtures, which comprises: contacting a feed comprising one or more oxygenated organic compounds selected from the group consisting of methanol and methyl ethers of the lower alkanols with a mordenite catalyst having a silica to alumina ratio greater than 15 and a constraint index of less than about 1, said contacting being at a temperature from about 500° F to about 850° F, a pressure of 0.1 atmosphere to 50 atmospheres, and a W.H.S.V. of 0.1 to 30; and converting at least about 80% of said oxygenated organic compounds to water and a hydrocarbon mixture containing less than 10 weight percent methane and more than about 50% of C 9 , C 10 and heavier aromatics.
Claim 3
Dependent Claim
22 words
The method described in claim 1 wherein said contacting of said feed is at a W.H.S.V. of about 0.5 to about 10.
Claim 4
Dependent Claim
32 words
The method described in claim 1 including the step of calcining said mordenite catalyst in air at a temperature of about 850° F to about 1300° F prior to said contacting step.
Claim 5
Dependent Claim
15 words
The method described in claim 1 wherein said mordenite catalyst is in the hydrogen form.
Claim 6
Dependent Claim
34 words
The method described in claim 1 wherein said mordenite catalyst has a silica to alumina ratio greater than about 25 and has a sorption capacity for cyclohexane of at least about 2 wt. percent.
Claim 7
Dependent Claim
15 words
The method described in claim 5 wherein said mordenite catalyst is in the hydrogen form.
Claim 8
Dependent Claim
18 words
The method described in claim 6 wherein said feed consists essentially of methanol, dimethyl ether or mixtures thereof.
Claim 9
Dependent Claim
26 words
The method described in claim 6 including the step of calcining in air said mordenite catalyst having a silica to alumina ratio greater than about 25.
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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |