US3872030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mix-mulling process for improved hydrotreating catalyst and resulting product
Assignee: Wyeth Holdings LLC
•
Filing: 1973-02-06
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Granted: 1975-03-18
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Expires: 1993-02-06
Abstract
Abstract A mix-mulling process for a hydrodesulfurization catalyst composite is given wherein an alumina powder is mulled with promoter sources in conjunction with urea, is extruded, is dehydrated, and is activated to provide composites of improved activity.
Inventors
- 👤 Irvin Ralph Feins
- 👤 Robert Alan Bornfriend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:48
CPC Classifications
B; B01; B01J; B01J23/00; 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: 11
Claim 1
Independent Claim
87 words
A PROCESS FOR PREPARING A HYDROTREATING CATALYST COMPOSITE WHICH COMPRISES: PREPARING AN AQUEOUS SLURRY OF ALUMINA POWDER; FURNISHING TO SAID SLURRY SUFFICIENT OF (A) A SOLUBLE COBALT COMPOUND THERMALLY DECOMPOSABLE TO THE METAL OXIDE TO PROVIDE FROM ABOUT 1 TO 8 PERCENT COBALT, (B) SUFFICIENT OF A SOLUBLE MOLYBDENUM COMPOUND THERMALLY DECOMPOSABLE TO THE METAL OXIDE TO PROVIDE FROM ABOUT 8 TO 20 PERCENT MOLYBDENUM, AND (C) SUFFICIENT UREA TO PROVIDE AT LEAST 0.5 MOLE OF UREA PER MOLE OF COBALT PRESENT, SAID FURNISH PROVIDING IN SAID
Claim 2
Dependent Claim
87 words
A PROCESS FOR PREPARING A HYDROTREATING CATALYST COMPOSITE WHICH COMPRISES: PREPARING AN AQUEOUS SLURRY OF ALUMINA POWDER; FURNISHING TO SAID SLURRY SUFFICIENT OF (A) A SOLUBLE COBALT COMPOUND THERMALLY DECOMPOSABLE TO THE METAL OXIDE TO PROVIDE FROM ABOUT 1 TO 8 PERCENT COBALT, (B) SUFFICIENT OF A SOLUBLE MOLYBDENUM COMPOUND THERMALLY DECOMPOSABLE TO THE METAL OXIDE TO PROVIDE FROM ABOUT 8 TO 20 PERCENT MOLYBDENUM, AND (C) SUFFICIENT UREA TO PROVIDE AT LEAST 0.5 MOLE OF UREA PER MOLE OF COBALT PRESENT, SAID FURNISH PROVIDING IN SAID
Claim 3
Dependent Claim
23 words
The process of claim 1 wherein the cobalt compound and the molybdenum compound are furnished as a sinGle aqueous solution of both ingredients.
Claim 4
Dependent Claim
24 words
The process of claim 1 wherein the cobalt compound, molybdenum compound, and urea are furnished as a single aqueous solution of the three ingredients.
Claim 5
Dependent Claim
19 words
The process of claim 1 wherein the cobalt compound, molybdenum compound, and urea are furnished as separate aqueous solutions.
Claim 6
Dependent Claim
23 words
The process of claim 1 wherein nitric acid is also furnished in said slurry in an amount sufficient to densify the catalyst composite.
Claim 7
Dependent Claim
18 words
The process of claim 1 wherein a polyacrylamide extrusion aid is added to said slurry prior to extrusion.
Claim 8
Dependent Claim
12 words
The process of claim 1 wherein the cobalt compound is cobalt nitrate.
Claim 9
Dependent Claim
13 words
The process of claim 1 wherein the molybdenum compound is an ammonium molybdate.
Claim 10
Dependent Claim
12 words
The process of claim 8 wherein said ammonium molybdate is ammonium heptamolybdate.
Claim 11
Dependent Claim
10 words
A catalyst composite obtained by the process of claim 1.
References Cited (Backward Citations)
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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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |