Patent US4548918A successfully refreshed from Google Patents.
US4548918A
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Process for manufacturing a hydrocarbon conversion catalyst and catalyst prepared by said process
Assignee: Pro Catalyse SA
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Filing: 1984-05-04
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Granted: 1985-10-22
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Expires: 2004-05-04
Abstract
Abstract The invention concerns the manufacture of a solid acid catalyst comprising: (a) a carrier, (b) a metal of the platinum family and (c) an additional metal selected from tin, germanium and lead. Halogen may be present. The additional metal is added to the catalytic mass dissolved in a hydrocarbon solvent, in the form of an organometallic compound, for example tetrabutyl tin. The invention is particularly applicable to the manufacture of catalysts for hydrocarbon reforming or aromatic hydrocarbons production.
Inventors
- 👤 Jean-Paul Bournonville
- 👤 Chan T. Dinh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:56
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/62; B01J23/622; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
186 words
A process for manufacturing a hydrocarbon conversion catalyst which comprises the steps of: (a) impregnating a carrier with an acid solution containing at least one halogen or halogen compound and at least one compound of a noble metal of the platinum family, (b) drying the resultant impregnated carrier, (c) calcining the resultant dried impregnated carrier, (d) contacting the resultant calcined impregnated carrier with a solution of at least one organic compound selected from the group consisting of alkyl, cycloalkyl, aryl, alkylaryl and arylalkyl tin, germanium and lead compounds and halogenated derivatives thereof, in a hydrocarbon solvent selected from the group consisting of paraffinic, naphthenic and aromatic hydrocarbons containing 6 to 12 carbon atoms per molecule, said compound of a noble metal of the platinum family, said halogen or halogen compound, and said at least one organic compound being used in such proportions as to result in a catalyst containing 0.01 to 2% by weight of said noble metal of the platinum family, 0.005 to 0.1% by weight of said additional metal and 0.1 to 15% by weight of halogen and (e) drying the thus prepared catalyst.
Claim 2
Dependent Claim
186 words
A process for manufacturing a hydrocarbon conversion catalyst which comprises the steps of: (a) impregnating a carrier with an acid solution containing at least one halogen or halogen compound and at least one compound of a noble metal of the platinum family, (b) drying the resultant impregnated carrier, (c) calcining the resultant dried impregnated carrier, (d) contacting the resultant calcined impregnated carrier with a solution of at least one organic compound selected from the group consisting of alkyl, cycloalkyl, aryl, alkylaryl and arylalkyl tin, germanium and lead compounds and halogenated derivatives thereof, in a hydrocarbon solvent selected from the group consisting of paraffinic, naphthenic and aromatic hydrocarbons containing 6 to 12 carbon atoms per molecule, said compound of a noble metal of the platinum family, said halogen or halogen compound, and said at least one organic compound being used in such proportions as to result in a catalyst containing 0.01 to 2% by weight of said noble metal of the platinum family, 0.005 to 0.1% by weight of said additional metal and 0.1 to 15% by weight of halogen and (e) drying the thus prepared catalyst.
Claim 3
Dependent Claim
37 words
A process according to claim 1, wherein step (d) comprises immersing the catalytic mass into a hydrocarbon solvent and then introducing into said solvent said solution of said at least one organic compound in a hydrocarbon solvent.
Claim 4
Dependent Claim
34 words
A process according to claim 2, wherein the hydrocarbon solvent of step (d) for said at least one organic compound is the same as the hydrocarbon solvent in which said catalytic mass is immersed.
Claim 5
Dependent Claim
12 words
A process according to claim 1, wherein the additional metal is tin.
Claim 6
Dependent Claim
19 words
A process according to claim 1, wherein, in step (c), the catalytic mass, after calcination, is reduced with hydrogen.
Claim 7
Dependent Claim
11 words
A hydrocarbon conversion catalyst prepared by the process of claim 1.
Claim 8
Dependent Claim
12 words
A process according to claim 1, wherein the hydrocarbon solvent is n-heptane.
Claim 9
Dependent Claim
12 words
A process according to claim 1, wherein the hydrocarbon solvent is methylcyclohexane.
Claim 10
Dependent Claim
12 words
A process according to claim 1, wherein the hydrocarbon solvent is toluene.
Claim 11
Dependent Claim
19 words
A hydrocarbon conversion catalyst according to claim 1 containing not more than 0.04% by weight of said additional metal.
Claim 12
Dependent Claim
19 words
A hydrocarbon conversion catalyst according to claim 1 containing not more than 0.02% by weight of said additional metal.
Claim 13
Dependent Claim
24 words
A hydrocarbon conversion catalyst according to claim 6 wherein the noble metal of the platinum family is platinum and the additional metal is tin.
Claim 14
Dependent Claim
18 words
A catalyst according to claim 12 wherein the tin compound employed in the impregnation solution is n-tetrabutyl tin.
References Cited (Backward Citations)
US4049581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-21 | 1989-04-22 | 1989-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-21 | 1993-04-22 | 1993-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-21 | 1997-04-22 | 1997-10-22 | $7700.00 | Window Closed / Lapsed |