US3923920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin disproportionation catalyst and process for using same
Assignee: Phillips Petroleum Co
•
Filing: 1973-05-24
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Granted: 1975-12-02
•
Expires: 1993-05-24
Abstract
Abstract An olefin disproportionation catalyst is provided comprising a minor amount of tungsten oxide or molybdenum oxide, about 0.01 to 1 weight percent of fluorine, the remainder of the catalyst substantially being silica. The process of using this catalyst to disproportionate unsaturated materials is also claimed.
Inventors
- 👤 Robert B Regier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:04
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/22; B01J37/26; B01J23/00; B01J23/16; B01J23/24; B01J23/28; B01J23/30; C; C07; C07C; C07C6/00; C07C6/02; C07C6/04
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
101 words
THE PROCESS OF DISPROPORTIONATING A DISPORPORTIONATABLE FEED MATERIAL SELECTED FROM THE GROUP CONSISTING OF DISPORPORTIONATABLE CYCLIC AND ACRYLIC, BRANCHED AND UNBRANCHED MONOOLEFINS AND POLYENES OR MIXTURES OF THESE MONOOLEFINS OR POLYENES WITH ETHYLENE BY CONTACTING SAID MATERIAL WITH A CATALYST CONSISTING ESSENTIALLY OF ABOUT 0.1 TI ABOUT 25 WEIGHT PERCENT OF TUNGSTEN OXIDE, MOLYBDENUM OXIDE, OR MIXTURES THEREOF, ABOUT 0.01 TO ABOUT 1.0 WEIGHT PERCENT OF FLUORINE, THE REMAINDER OF SAID COMPOSITION BEING SUBSTANTIALLY SILICA, THE AMOUNT OF FLUORINE BEING BASED ON THE WEIGHT OF SILICA, AND THE AMOUNT OF PROMOTER MATERIAL BEING BASED ON THE TOTAL WEIGHT OF THE COMPOSITION.
Claim 2
Dependent Claim
101 words
THE PROCESS OF DISPROPORTIONATING A DISPORPORTIONATABLE FEED MATERIAL SELECTED FROM THE GROUP CONSISTING OF DISPORPORTIONATABLE CYCLIC AND ACRYLIC, BRANCHED AND UNBRANCHED MONOOLEFINS AND POLYENES OR MIXTURES OF THESE MONOOLEFINS OR POLYENES WITH ETHYLENE BY CONTACTING SAID MATERIAL WITH A CATALYST CONSISTING ESSENTIALLY OF ABOUT 0.1 TI ABOUT 25 WEIGHT PERCENT OF TUNGSTEN OXIDE, MOLYBDENUM OXIDE, OR MIXTURES THEREOF, ABOUT 0.01 TO ABOUT 1.0 WEIGHT PERCENT OF FLUORINE, THE REMAINDER OF SAID COMPOSITION BEING SUBSTANTIALLY SILICA, THE AMOUNT OF FLUORINE BEING BASED ON THE WEIGHT OF SILICA, AND THE AMOUNT OF PROMOTER MATERIAL BEING BASED ON THE TOTAL WEIGHT OF THE COMPOSITION.
Claim 3
Dependent Claim
26 words
A process according to claim 1 wherein the material is contacted with the catalyst at a temperature in the range of about 400* to about 1100*F.
Claim 4
Dependent Claim
12 words
washing the fluorided silica of step (1) to remove excess fluoriding agent,
Claim 5
Dependent Claim
12 words
washing the fluorided silica of step (1) to remove excess fluoriding agent,
Claim 6
Dependent Claim
8 words
drying the washed fluorided silica of step (2),
Claim 7
Dependent Claim
8 words
drying the washed fluorided silica of step (2),
Claim 8
Dependent Claim
46 words
A process according to claim 1 wherein the material is contacted with a catalyst in a continuous operation at a feed rate from about 0.5 to about 1000 weight hours space velocity and a pressure in the range of from about 0 to about 2000 psig.
Claim 9
Dependent Claim
30 words
A process according to claim 1 wherein the material is contacted with the catalyst in a batch operation at a reaction time of from about 0.1 to about 20 hours.
Claim 10
Dependent Claim
36 words
impregnating the dried fluorided silica of step (3) with a compound of tungsten, molybdenum, or mixtures thereof which is convertible to the oxide of tungsten or oxide of molybdenum or mixtures of said oxides on calcination,
Claim 11
Dependent Claim
36 words
impregnating the dried fluorided silica of step (3) with a compound of tungsten, molybdenum, or mixtures thereof which is convertible to the oxide of tungsten or oxide of molybdenum or mixtures of said oxides on calcination,
Claim 12
Dependent Claim
7 words
drying the composite from step (4), and
Claim 13
Dependent Claim
7 words
drying the composite from step (4), and
Claim 14
Dependent Claim
30 words
A process according to claim 1 wherein the catalyst contains an amount of tungsten oxide, molybdenum oxide, or mixtures thereof, which is from about 1 to about 15 weight percent.
Claim 15
Dependent Claim
40 words
A process according to claim 1 wherein the silica prior to association with the promoter material and fluorine has a surface area of at least about 1 m2/g and is a silica gel, silica aerogel, or flame hydrolyzed silica gel.
Claim 16
Dependent Claim
17 words
calcining the composite at a temperature of from about 600* to about 1500*F. to activate the catalyst.
Claim 17
Dependent Claim
17 words
calcining the composite at a temperature of from about 600* to about 1500*F. to activate the catalyst.
Claim 18
Dependent Claim
12 words
A process according to clAim 1 wherein said catalyst is prepared by
Claim 19
Dependent Claim
25 words
A process according to claim 7 wherein the material is contacted with the catalyst at a temperature in the range of about 400* to 1100*F.
Claim 20
Dependent Claim
30 words
A process according to claim 8 wherein the catalyst contains an amount of tungsten oxide, molybdenum oxide, or mixtures thereof, which is from about 1 to about 15 weight percent.
Claim 21
Dependent Claim
18 words
A process according to claim 1 wherein said fluorine is provided by contacting the silica with ammonium fluoride.
Claim 22
Dependent Claim
17 words
A process according to claim 10 wherein said catalyst consists essentially of tungsten oxide, fluorine and silica.
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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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |