US4021374A
Expired / Lapsed
US
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Selective hydrogenating catalysts and a process for the preparation thereof
Assignee: MAGYAR TUDOMANYOS AKADEMIA SZERVES KEMIAI TECHNOLOGIAI TANSZEK
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Filing: 1974-12-12
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Granted: 1977-05-03
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Expires: 1994-12-12
Abstract
Abstract The invention relates to novel selective hydrogenating catalysts comprising at least one platinum group component and at least one of a group IB or group IIB component. These catalysts are prepared by depositing and reducing an ion, complex or hydroxide of at least one metal belonging to the platinum group together with an ion, complex or hydroxide of at least one metal belonging to either of groups IB and IIB of the Periodic System.
Inventors
- 👤 Jozsef Petro
- 👤 Tibor Mathe
- 👤 Antal Tungler
- 👤 Zoltan Csuros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:55
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/48; B01J23/54; B01J23/56; B01J23/60; B01J23/70; B01J23/89; B01J23/8926; C; C07; C07C; C07C45/00; C07C45/41
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
75 words
A process for the production of a selective hydrogenating catalyst, comprising simultaneously depositing an ion, complex or hydroxide of at least one metal belonging to the platinum group and an ion, complex or hydroxide of at least one metal belonging to Group IB or IIB of the Periodic System together onto a support, and thereafter reducing the deposited ions, complexes or hydroxides together in an aqueous liquid at a temperature of 0° to 100° C.
Claim 2
Dependent Claim
75 words
A process for the production of a selective hydrogenating catalyst, comprising simultaneously depositing an ion, complex or hydroxide of at least one metal belonging to the platinum group and an ion, complex or hydroxide of at least one metal belonging to Group IB or IIB of the Periodic System together onto a support, and thereafter reducing the deposited ions, complexes or hydroxides together in an aqueous liquid at a temperature of 0° to 100° C.
Claim 3
Dependent Claim
22 words
A method as claimed in claim 1, in which said ions, complexes or hydroxides are conjointly deposited from an aqueous solution thereof.
Claim 4
Dependent Claim
67 words
A method as claimed in claim 1, in which said ions, complexes or hydroxides are deposited in an amount such that said metal belonging to the platinum group is present after reduction in an amount of 0.5 to 10% by weight of the catalyst and said metal belonging to Group IB or IIB is present in an amount of 0.05 to 10% by weight of the catalyst.
Claim 5
Dependent Claim
23 words
A method as claimed in claim 1, in which said reducing is effected with hydrogen under a pressure, of 1 to 10 atmospheres.
Claim 6
Dependent Claim
21 words
A method as claimed in claim 1, in which said reducing is effected with an aqueous solution of NaBH 4 .
Claim 7
Dependent Claim
11 words
A selective hydrogenating catalyst prepared by the method of claim 1.
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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) | 1980-05-02 | 1980-11-01 | 1981-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-02 | 1984-11-01 | 1985-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-02 | 1988-11-01 | 1989-05-03 | $7700.00 | Window Closed / Lapsed |