US4333855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Promoted zinc titanate as catalytic agent
Assignee: Phillips Petroleum Co
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Filing: 1981-04-30
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Granted: 1982-06-08
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Expires: 2001-04-30
Abstract
Abstract The catalytic hydrodesulfurization and/or hydrodenitrogenation of organic compounds containing sulfur and/or nitrogen is carried out in the presence of a catalyst composition comprising zinc, titanium and at least one promoter selected from the group consisting of vanadium, chromium, cobalt, nickel, molybdenum, tungsten, rhenium, platinum, palladium, rhodium, ruthenium, and compounds thereof.
Inventors
- 👤 Lloyd E. Gardner
- 👤 Floyd E. Farha, Jr.
- 👤 Alan D. Eastman
- 👤 Lewis E. Drehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:24
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; B; B01; B01J; B01J23/00; B01J23/16; B01J23/20; B01J23/22; B01J23/24; B01J23/38; B01J23/54; B01J23/56; B01J23/60; B01J23/70; B01J23/76; B01J23/80
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
119 words
A catalyst composition comprising zinc, titanium, and at least one promoter selected from the group consisting of vanadium, chromium, cobalt, molybdenum, tungsten, platinum, palladium, rhodium, ruthenium, and compounds thereof, wherein the concentration by weight of said at least one promoter in said catalyst composition is less than the total concentration by weight of said zinc and said titanium in said catalyst composition and wherein said catalyst composition is prepared by calcining a mixture of zinc oxide and titanium dioxide in the presence of molecular oxygen at a temperature in the range of about 650° C. to about 1050° C. to form zinc titanate and adding said at least one promoter to said zinc titanate to form said catalyst composition.
Claim 2
Dependent Claim
119 words
A catalyst composition comprising zinc, titanium, and at least one promoter selected from the group consisting of vanadium, chromium, cobalt, molybdenum, tungsten, platinum, palladium, rhodium, ruthenium, and compounds thereof, wherein the concentration by weight of said at least one promoter in said catalyst composition is less than the total concentration by weight of said zinc and said titanium in said catalyst composition and wherein said catalyst composition is prepared by calcining a mixture of zinc oxide and titanium dioxide in the presence of molecular oxygen at a temperature in the range of about 650° C. to about 1050° C. to form zinc titanate and adding said at least one promoter to said zinc titanate to form said catalyst composition.
Claim 3
Dependent Claim
29 words
A composition in accordance with claim 1 wherein the atomic ratio of zinc to titanium in said catalyst composition is in the range of about 1:1 to about 3:1.
Claim 4
Dependent Claim
29 words
A composition in accordance with claim 1 wherein the atomic ratio of zinc to titanium in said catalyst composition is in the range of about 1.8:1 to about 2.2:1.
Claim 5
Dependent Claim
47 words
A composition in accordance with claim 1 wherein said catalyst composition has been calcined in the presence of molecular oxygen at a temperature in the range of about 500° C. to about 650° C. after said at least one promoter has been added to said zinc titanate.
Claim 6
Dependent Claim
86 words
A composition in accordance with claim 1 wherein the concentration of vanadium, chromium, cobalt, nickel, molybdenum, or tungsten as individual promoters, expressed as an element, if present, is in the range of about 0.1 to about 16 weight percent based on the weight of said catalyst composition and the concentration of rhenium, palladium, rhodium, ruthenium or platinum as individual promoters, expressed as the element, if present, is in the range of about 0.2 to about 1.6 weight percent based on the weight of said catalyst composition.
Claim 7
Dependent Claim
50 words
A composition in accordance with claim 5 wherein the total concentration of any combination of the group from which said at least one promoter is selected, expressed as an element, is in the range of about 0.1 to about 24 weight percent based on the weight of the catalyst composition.
Claim 8
Dependent Claim
17 words
A composition in accordance with claim 1 wherein said at least one promoter is cobalt and molybdenum.
Claim 9
Dependent Claim
26 words
A composition in accordance with claim 7 wherein the cobalt:molybdenum atomic ratio in said catalyst composition is in the range of about 0.6:1 to about 0.8:1.
Claim 10
Dependent Claim
26 words
A composition in accordance with claim 1 wherein said catalyst composition is completely sulfided after said at least one promoter is added to said zinc titanate.
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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) | 1985-06-07 | 1985-12-07 | 1986-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-07 | 1989-12-07 | 1990-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-07 | 1993-12-07 | 1994-06-08 | $7700.00 | Window Closed / Lapsed |