Patent US415726A successfully refreshed from Google Patents.
Patent US4048108A successfully refreshed from Google Patents.
US4048108A
Expired / Lapsed
US
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Oligomerization process and catalyst therefor
Assignee: Honeywell UOP LLC
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Filing: 1975-12-29
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Granted: 1977-09-13
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Expires: 1995-12-29
Abstract
Abstract Olefinic hydrocarbons containing from 3 to about 6 carbon atoms in which the olefinic linkage is in a terminal position are oligomerized by treatment with a heterogeneous oligomerization catalyst which is prepared by treating an activated metal oxide of Group IIIA of the Periodic Table with a titanium tetrafluoride compound at an elevated temperature.
Inventors
- 👤 Ji-Yong Ryu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:06
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; B01J27/08; B01J27/12; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/20; C07C2/22; C07C2521/00; C07C2521/02; C07C2521/04; C07C2527/00; C07C2527/06; C07C2527/135
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
77 words
A catalyst preparation method which comprises heating a metal oxide which possesses surface hydroxyl groups with hydrogen or nitrogen at a temperature of from about 350° to about 550° C., impregnating the thus heated metal oxide with a solution of titanium tetrafluoride, cold rolling the impregnated oxide for a time period of from about 0.5 to about 4 hours, then steam drying at about 100° C. and further drying at about 200°-600° C. in an inert atmosphere.
Claim 2
Dependent Claim
77 words
A catalyst preparation method which comprises heating a metal oxide which possesses surface hydroxyl groups with hydrogen or nitrogen at a temperature of from about 350° to about 550° C., impregnating the thus heated metal oxide with a solution of titanium tetrafluoride, cold rolling the impregnated oxide for a time period of from about 0.5 to about 4 hours, then steam drying at about 100° C. and further drying at about 200°-600° C. in an inert atmosphere.
Claim 3
Dependent Claim
19 words
The method as set forth in claim 1 in which said metal oxide comprises a Group IIIA metal oxide.
Claim 4
Dependent Claim
21 words
The method as set forth in claim 2 in which said Group IIIA metal oxide is a high surface area alumina.
Claim 5
Dependent Claim
20 words
The method as set forth in claim 3 in which said alumina is a low density, high surface area gamma-alumina.
Claim 6
Dependent Claim
18 words
The method as set forth in claim 2 in which said Group IIIA metal oxide is gallium oxide.
Claim 7
Dependent Claim
18 words
The method as set forth in claim 2 in which said Group IIIA meta oxide is indium oxide.
Claim 8
Dependent Claim
25 words
The method as set forth in claim 1 further characterized in that said titanium tetrafluoride-metal oxide is composited on a high surface area inert support.
Claim 9
Dependent Claim
18 words
The method as set forth in claim 7 in which said high surface area inert support is silica.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |