US5585318A
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US
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Alkyne hydrogenation process
Assignee: Phillips Petroleum Co
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Filing: 1995-11-20
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Granted: 1996-12-17
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Expires: 2015-11-20
Abstract
Abstract C 2 -C 6 alkynes (preferably acetylene) contained in feeds which also contain sulfur impurities are hydrogenated to the corresponding alkenes in the presence of a supported palladium catalyst which has been promoted with alkali metal fluoride (preferably potassium fluoride). A specific cataylst consists essentially of a palladium component, at least one alkali metal fluoride (preferably KF) and an inorganic support material (preferably alumina).
Inventors
- 👤 Marvin M. Johnson
- 👤 Tin-Tack P. Cheung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:34
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/08; C07C5/09; C07C7/00; C07C7/148; C07C7/163; C07C7/167; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/44; C07C2523/48; C07C2523/50; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
34 words
A catalyst composition which consists essentially of at least one palladium component selected from the group consisting of palladium metal and palladium oxide, at least one alkali metal fluoride and an inorganic support material.
Claim 2
Dependent Claim
34 words
A catalyst composition which consists essentially of at least one palladium component selected from the group consisting of palladium metal and palladium oxide, at least one alkali metal fluoride and an inorganic support material.
Claim 3
Dependent Claim
19 words
A catalyst composition in accordance with claim 1, wherein said at least one alkali metal fluoride is potassium fluoride.
Claim 4
Dependent Claim
26 words
A catalyst composition in accordance with claim 1, wherein the palladium content is about 0.01-1 weight-% Pd and the fluorine content is about 0.05-1.5 weight-% F.
Claim 5
Dependent Claim
26 words
A catalyst composition in accordance with claim 1, wherein said inorganic support material is selected from the group consisting of alumina, titania, zirconia and mixtures thereof.
Claim 6
Dependent Claim
15 words
A catalyst composition in accordance with claim 4, wherein said inorganic support material is alumina.
Claim 7
Dependent Claim
43 words
A catalyst composition in accordance with claim 1, wherein the palladium content is about 0.01-1 weight-% Pd, the fluorine content is about 0.05-1.5 weight-% F, and said inorganic support material is selected from the group consisting of alumina, titania, zirconia and mixtures thereof.
Claim 8
Dependent Claim
15 words
A catalyst composition in accordance with claim 6, wherein said inorganic support material is alumina.
Claim 9
Dependent Claim
19 words
A catalyst composition in accordance with claim 6, wherein said at least one alkali metal fluoride is potassium fluoride.
Claim 10
Dependent Claim
15 words
A catalyst composition in accordance with claim 8, wherein said inorganic support material is alumina.
Claim 11
Dependent Claim
21 words
A composition in accordance with claim 1, wherein the atomic ratio of fluorine to palladium is about 3:1 to about 30:1.
Claim 12
Dependent Claim
26 words
A catalyst composition in accordance with claim 10, wherein the palladium content is about 0.01-1 weight-% Pd and the fluorine content is about 0.05-1.5 weight-% F.
Claim 13
Dependent Claim
18 words
A catalyst composition in accordance with claim 11, wherein said at least alkali metal fluoride is potassium fluoride.
Claim 14
Dependent Claim
26 words
A catalyst composition in accordance with claim 11, wherein said inorganic support material is selected from the group consisting of alumina, titania, zirconia and mixtures thereof.
Claim 15
Dependent Claim
15 words
A catalyst composition in accordance with claim 13, wherein said inorganic support material is alumina.
Claim 16
Dependent Claim
19 words
A catalyst composition in accordance with claim 14, wherein said at least one alkali metal fluoride is potassium fluoride.
Claim 17
Dependent Claim
18 words
A catalyst composition in accordance with claim 1, having a surface area of about 1-100 m 2 /g.
Claim 18
Dependent Claim
36 words
A catalyst composition in accordance with claim 1, consisting essentially of palladium metal, at least one alkali metal fluoride, and an inorganic support material selected from the group consisting of alumina, titania, zirconia and mixtures thereof.
Claim 19
Dependent Claim
26 words
A catalyst composition in accordance with claim 17, wherein said at least one alkali metal fluoride is potassium fluoride and said inorganic support material is alumina.
Claim 20
Dependent Claim
36 words
A catalyst composition in accordance with claim 1, consisting essentially of palladium oxide, at least one alkali metal fluoride, and an inorganic support material selected from the group consisting of alumina, titania, zirconia and mixtures thereof.
Claim 21
Dependent Claim
26 words
A catalyst composition in accordance with claim 19, wherein said at least one alkali metal fluoride is potassium fluoride and said inorganic support material is alumina.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1999-12-17 | 2000-06-17 | 2000-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-17 | 2004-06-17 | 2004-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-17 | 2008-06-17 | 2008-12-17 | $7700.00 | Window Closed / Lapsed |