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US4540481A
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Catalysts from molybdenum polysulfide precursors, their preparation and use
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1983-11-14
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Granted: 1985-09-10
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Expires: 2003-11-14
Abstract
Abstract A process for the preparation of novel highly active, highly selective hydrotreating catalysts. These catalysts are prepared, in bulk or in supported form, by contacting together and decomposing, in the presence of hydrogen, hydrocarbon, and sulfur, a catalyst precursor characterized by the formula Bx[Mo3Sz] where B is an ammonium ion, polyammonium ion, tertiary or quaternary phosphonium ion, or a hydrocarbyl substituted ammonium ion, hydrocarbyl substituted polyammonium ion, or hydrocarbyl substituted tertiary or quaternary phosphonium ion, x is 1 where B is a divalent cationic moiety, or 2 where B is a monovalent cationic moiety, [Mo3Sz] is a divalent anionic moiety wherein z is an integer ranging from about 10 to about 46. A preferred precursor catalyst species is Mo3(S2)6S.
Inventors
- 👤 Willard H. Sawyer
- 👤 Howard L. Mitchell, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:55
CPC Classifications
C; C10; C10G; C10G49/00; C10G49/02; C10G49/04; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/28; B01J27/00; B01J27/02; B01J27/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
131 words
A process for hydrotreating a hydrocarbon feed which comprises contacting said feed, in the presence of hydrogen, at hydrotreating conditions with a highly active, highly selective hydrotreating catalyst characterized as a reaction product formed by contacting together and decomposing in the presence of hydrogen, hydrocarbon, and sulfur, a catalyst precursor salt characterized by the formula B.sub.x [Mo.sub.3 S.sub.z ] where B is an ammonium ion, polyammonium ion, tertiary or quaternary phosphonium ion, or a hydrocarbyl substituted ammonium ion, hydrocarbyl substituted polyammonium ion, or hydrocarbyl substituted tertiary or quaternary phosphonium ion, x is 1 where B is a divalent cationic moiety, or 2 where B is a monovalent cationic moiety, [Mo 3 S z ] is a divalent anionic moiety wherein z is an integer ranging from about 10 to about 46.
Claim 2
Dependent Claim
131 words
A process for hydrotreating a hydrocarbon feed which comprises contacting said feed, in the presence of hydrogen, at hydrotreating conditions with a highly active, highly selective hydrotreating catalyst characterized as a reaction product formed by contacting together and decomposing in the presence of hydrogen, hydrocarbon, and sulfur, a catalyst precursor salt characterized by the formula B.sub.x [Mo.sub.3 S.sub.z ] where B is an ammonium ion, polyammonium ion, tertiary or quaternary phosphonium ion, or a hydrocarbyl substituted ammonium ion, hydrocarbyl substituted polyammonium ion, or hydrocarbyl substituted tertiary or quaternary phosphonium ion, x is 1 where B is a divalent cationic moiety, or 2 where B is a monovalent cationic moiety, [Mo 3 S z ] is a divalent anionic moiety wherein z is an integer ranging from about 10 to about 46.
Claim 3
Dependent Claim
52 words
The process of claim 1 wherein the catalyst precursor salt is distended upon a porous inorganic oxide support, and the support contains from about 3 percent to about 20 percent of Mo as the precursor salt, B x [Mo 3 S z ], calculated as Mo on an ignition loss free basis.
Claim 4
Dependent Claim
31 words
The process of claim 2 wherein the catalyst contains from about 6 percent to about 17 percent of Mo as said catalyst precursor salt, B x [Mo 3 S z ].
Claim 5
Dependent Claim
34 words
The process according to any one of claims 1, 2, or 3 wherein the [Mo 3 S z ] anionic moiety of the catalyst precursor salt is Mo 3 (S 2 ) 6 S.
Claim 6
Dependent Claim
23 words
The process according to any one of claims 1, 2, or 3 wherein the catalyst precursor salt is distended on an alumina support.
Claim 7
Dependent Claim
42 words
The process according to any one of claims 1, 2 or 3 wherein the catalyst precursor salt is distended on the support, and the composite contains a promoter metal, or metals, selected from Group VIII of the Periodic Table of the Elements.
Claim 8
Dependent Claim
44 words
The process according to any one of claim 1, 2 or 3 wherein the catalyst precursor salt is distended on the support, and the composite comprises at least one promoter metal selected from the group consisting essentially of molybdenum, tungsten, iron, cobalt, and nickel.
Claim 9
Dependent Claim
45 words
The process according to any one of claims 1, 2 or 3 wherein the catalyst precursor salt is distended on the support, and the composite contains an admixture of cobalt and molybdenum, or nickel and molybdenum, exclusive of the molybdenum of said catalyst precursor salt.
References Cited (Backward Citations)
US2112292A
Cited
US2490488A
Cited
US2686763A
Cited
US3331769A
Cited
FR1473900A
Cited
US3876755A
Cited
US4098839A
Cited
NL7603197A
Cited
US4066530A
Cited
US4134825A
Cited
US4243553A
Cited
US4243554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |