Patent US4254295A successfully refreshed from Google Patents.
US4254295A
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Oligomerization of olefins
Assignee: Mobil Oil AS
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Filing: 1979-12-05
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Granted: 1981-03-03
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Expires: 1999-12-05
Abstract
Abstract A process for the selective oligomerization of linear and branched chain C2 to C12 olefins is provided. The process comprises contacting of the said olefin in the liquid phase with ZSM-12 at temperatures of 80 DEG F. to 400 DEG F.
Inventors
- 👤 Samuel A. Tabak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:45
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/12; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/70
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
38 words
A process for the selective oligomerization of linear and branched chain C 2 to C 12 olefins which comprises contacting said olefins in the liquid phase with ZSM-12 at temperatures from about 80° F. to about 400° F.
Claim 2
Dependent Claim
38 words
A process for the selective oligomerization of linear and branched chain C 2 to C 12 olefins which comprises contacting said olefins in the liquid phase with ZSM-12 at temperatures from about 80° F. to about 400° F.
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 0.1 to about 10.
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
13 words
The process of claim 1 wherein the 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
26 words
The process of claim 1 wherein the olefin feed is selected from the group consisting of C 3 to C 9 linear and branched chain olefins.
Claim 11
Dependent Claim
16 words
The process of claim 1 wherein the temperature is from about 80° to about 400° F.
References Cited (Backward Citations)
US4021502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |