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US3909453A
Expired / Lapsed
US
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Method of manufacturing a catalyst for the hydro-refining of residual oils
Assignee: Universal Oil Products Co
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Filing: 1973-12-26
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Granted: 1975-09-30
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Expires: 1993-12-26
Abstract
Abstract An improved method of preparing a catalyst comprising a Group VIII metal and a Group VIB metal impregnated on a refractory inorganic oxide support or carrier material, said catalyst being especially useful in the hydrorefining of residual oils, and particularly effective for the conversion of sulfurous components contained therein. A more active catalyst results from the order of metals impregnation on the support or carrier material, and from the nature of the impregnating solution.
Inventors
- 👤 Mark J O'hara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:58
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/652; C; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
117 words
IN THE PROCESS FOR THE MANUFACTURE OF A CATALYST COMPRISING A GROUP V111 METAL AND A GROUP VIB METAL IMPREGNATED ON A REFRACTORY INORGANIC OXIDE CARRIER MATERIAL, THE IMPROVEMENT WHICH COMPRISES A. INITIALLY IMPRIGNATING THE REFRACTORY INORGANIC OXIDE CARRIER MATERIAL WITH AN AQUEOUS SOLUTION OF A GROUP VIII METAL COMPOUND, B. DRYING THE IMPREGNATED CARRIER MATERIAL TO CONTAIN LESS THAN ABOUT 50 WT. % VOLATILE MATTER AS DETERMINED BY WEIGHT LOSS ON IGNITION AT 500*C., C. FURTHER IMPREGNATING THE GROUP VIII METAL COMPOUNDCONTAINING CARRIER MATERIAL WITH MOLYBDIC ACID DISSOLVED IN AQUEOUS AMMONIUM HYDROXIDE, AND D. DRYING THE RESULTING COMPOSITE AND CALCINING THE SAME IN AN OXIDIZING ATMOSPHERE AT A TEMPERATURE OF FROM ABOUT 500* TO ABOUT 700*".
Claim 2
Dependent Claim
117 words
IN THE PROCESS FOR THE MANUFACTURE OF A CATALYST COMPRISING A GROUP V111 METAL AND A GROUP VIB METAL IMPREGNATED ON A REFRACTORY INORGANIC OXIDE CARRIER MATERIAL, THE IMPROVEMENT WHICH COMPRISES A. INITIALLY IMPRIGNATING THE REFRACTORY INORGANIC OXIDE CARRIER MATERIAL WITH AN AQUEOUS SOLUTION OF A GROUP VIII METAL COMPOUND, B. DRYING THE IMPREGNATED CARRIER MATERIAL TO CONTAIN LESS THAN ABOUT 50 WT. % VOLATILE MATTER AS DETERMINED BY WEIGHT LOSS ON IGNITION AT 500*C., C. FURTHER IMPREGNATING THE GROUP VIII METAL COMPOUNDCONTAINING CARRIER MATERIAL WITH MOLYBDIC ACID DISSOLVED IN AQUEOUS AMMONIUM HYDROXIDE, AND D. DRYING THE RESULTING COMPOSITE AND CALCINING THE SAME IN AN OXIDIZING ATMOSPHERE AT A TEMPERATURE OF FROM ABOUT 500* TO ABOUT 700*".
Claim 3
Dependent Claim
20 words
The improvement of claim 1 further characterized in that said refractory inorganic oxide is a composite of alumina and silica.
Claim 4
Dependent Claim
28 words
THE IMPROVEMENT OF CLAIM 1 FURTHER CHARACTERIZED IN THAT SAID REFRACTORY INORGANIC OXIDE IS ALUMINA COMPOSITE WITH SILICA IN A WEIGHT RATIO FROM ABOUT 3:1 TO ABOUT 9:1.
Claim 5
Dependent Claim
40 words
The improvement of claim 1 further characterized in that said Group VIII metal compound is used in sufficient concentration in said aqueous solution to provide a final catalyst containing from about 0.1 to about 10 wt. % Group VIII metal.
Claim 6
Dependent Claim
37 words
The improvement of claim 1 further characterized in that said molybdic acid is used in sufficient concentration in said aqueous ammonium hydroxide to provide a final catalyst containing from about 5 to about 20 wt. % molybdenum.
Claim 7
Dependent Claim
19 words
The improvement of claim 1 further characterized in that said Group VIII metal compound is a compound of nickel.
Claim 8
Dependent Claim
17 words
The improvement of claim 1 further characterized in that said Group VIII metal compound is nickel nitrate.
References Cited (Backward Citations)
US3304254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |