Patent US551370A successfully refreshed from Google Patents.
US4124537A
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Coextruded catalytic composite
Assignee: Honeywell UOP LLC
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Filing: 1977-09-12
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Granted: 1978-11-07
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Expires: 1997-09-12
Abstract
Abstract A catalytic composite comprising a refractory inorganic oxide-supported Group VIB and Group VIII metal component is disclosed. The catalytic composite is characterized by a method of preparation which comprises coextruding a precursor compound of the Group VIB metal component, a precursor compound of the Group VIII metal component, and a finely divided refractory inorganic oxide admixed with hydrogen peroxide and sufficient water to provide an extrudable dough. The coextruded product is subsequently dried and calcined to yield an improved catalytic composite, particularly with respect to the hydrodesulfurization of residual fuel oils.
Inventors
- 👤 Stanley A. Gembicki
- 👤 Charles L. Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:43
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/0009; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/652; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
71 words
A catalytic composite comprising a refractory inorganic oxide-supported Group VIII and Group VIB metal component prepared by the method which comprises coextruding a precursor compound of said Group VIII metal component, a precursor compound of said Group VIB metal component and a finely divided refractory inorganic oxide or inorganic oxide precursor thereof, admixed with hydrogen peroxide and sufficient water to provide an extrudable dough, and drying and calcining the coextruded product.
Claim 2
Dependent Claim
71 words
A catalytic composite comprising a refractory inorganic oxide-supported Group VIII and Group VIB metal component prepared by the method which comprises coextruding a precursor compound of said Group VIII metal component, a precursor compound of said Group VIB metal component and a finely divided refractory inorganic oxide or inorganic oxide precursor thereof, admixed with hydrogen peroxide and sufficient water to provide an extrudable dough, and drying and calcining the coextruded product.
Claim 3
Dependent Claim
20 words
The catalytic composite of claim 1 further characterized in that said finely divided inorganic oxide is a finely divided alumina.
Claim 4
Dependent Claim
21 words
The catalytic composite of claim 1 further characterized in that said finely divided inorganic oxide is a finely divided alpha-alumina monohydrate.
Claim 5
Dependent Claim
34 words
The catalytic composite of claim 1 further characterized in that said finely divided inorganic oxide is a finely divided alpha-alumina monohydrate with an average bulk density of from about 0.4 to about 0.5 gms/cc.
Claim 6
Dependent Claim
63 words
The catalytic composite of claim 1 further characterized in that said precursor compound of a Group VIII metal component and said precursor compound of a Group VIB metal component are utilized in an amount to provide a catalytic composite comprising from about 1 to about 10 wt. % Group VIII metal and from about 4 to about 30 wt. % Group VIB metal.
Claim 7
Dependent Claim
50 words
The catalytic composite of claim 1 further characterized in that said precursor compound of a Group VIII metal component, precursor compound of a Group VIB metal component and finely divided refractory inorganic oxide or inorganic oxide precursor thereof, are admixed=with from about 5 to about 25 wt. % hydrogen peroxide.
Claim 8
Dependent Claim
76 words
The catalytic composite of claim 1 further characterized in that said precursor compound of a Group VIII metal component, precursor compound of a Group VIB metal component and finely divided refractory inorganic oxide or inorganic oxide precursor thereof, are admixed with from about 5 to about 25 wt. % hydrogen peroxide and sufficient water to provide an extrudable dough characterized by a weight loss on ignition at 900° C. of from about 50 to about 70%.
Claim 9
Dependent Claim
17 words
The catalytic composite of claim 1 further characterized in that said Group VIII metal component is cobalt.
Claim 10
Dependent Claim
17 words
The catalytic composite of claim 1 further characterized in that said Group VIB metal component is molybdenum.
Claim 11
Dependent Claim
21 words
The catalytic composite of claim 1 further characterized in that said precursor compound of a Group VIII metal is cobalt nitrate.
Claim 12
Dependent Claim
21 words
The catalytic composite of claim 1 further characterized in that said precursor compound of a Group VIB metal is ammonium molybdate.
Claim 13
Dependent Claim
72 words
The catalytic composite of claim 1 further characterized in that said coextruded product is calcined in air containing from about 15 to 30% steam at a temperature of from about 315° to about 345° C. for a period of from about 0.5 to about 1.5 hours, and thereafter at a temperature of from about 475° to about 550° C. for a period of from about 1 to about 3 hours in air.
References Cited (Backward Citations)
US3562150A
Cited
US3935127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |