US4255600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
ZSM-12 Cycloolefin dimerization
Assignee: Mobil Oil AS
•
Filing: 1979-12-05
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Granted: 1981-03-10
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Expires: 1999-12-05
Abstract
Abstract A process for the selective dimerization of cycloolefins having from 5 to about 12 carbon atoms is provided. The process comprises contacting of the olefin in the liquid phase with ZSM-12 at temperatures of 75° to 400° C.
Inventors
- 👤 L. Brewster Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:20
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7034; C; C07; C07C; C07C2/00; C07C2/02; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/70
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
37 words
A process for the selective dimerization of cycloolefins having from 5 to about 12 carbon atoms which comprises contacting said olefins in the liquid phase with ZSM-12 at temperatures from about 75° C. to about 400° C.
Claim 2
Dependent Claim
37 words
A process for the selective dimerization of cycloolefins having from 5 to about 12 carbon atoms which comprises contacting said olefins in the liquid phase with ZSM-12 at temperatures from about 75° C. to about 400° C.
Claim 3
Dependent Claim
24 words
The process of claim 1 wherein said contacting is carried out at a WHSV, based on zeolite, of from about 1 to about 100.
Claim 4
Dependent Claim
21 words
The process of claim 1 wherein a portion of the original cations associated with the zeolite are replaced by another cation.
Claim 5
Dependent Claim
13 words
The process of claim 3 wherein the replacing cation is a metal cation.
Claim 6
Dependent Claim
11 words
The process of claim 4 wherein the metal cation is nickel.
Claim 7
Dependent Claim
12 words
The process of claim 1 wherein ZSM-12 used is in the H-form.
Claim 8
Dependent Claim
13 words
The process of claim 1 wherein the zeolite is incorporated in a matrix.
Claim 9
Dependent Claim
18 words
The process of claim 1 wherein the pressure is sufficient to maintain the system in the liquid phase.
Claim 10
Dependent Claim
22 words
The process of claim 1 wherein the olefin feed is selected from the group consisting of cyclopentene, methylcyclopentene, cyclohexene, methylcyclohexene, cycloheptene, cyclooctene.
Claim 11
Dependent Claim
15 words
The process of claim 1 wherein said dimerization is carried out in an autoclave reactor.
Claim 12
Dependent Claim
16 words
The process of claim 1 wherein the temperature is from about 100° to about 300° C.
References Cited (Backward Citations)
US3832449A
Cited
US3970544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |