Patent US3816337A successfully refreshed from Google Patents.
US3816337A
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Process for preparing a catalytic cobalt carbonyl reaction product
Assignee: Tonen General Sekiyu KK
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Filing: 1972-07-10
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Granted: 1974-06-11
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Expires: 1992-07-10
Abstract
Abstract The invention relates to (1) the preparation of a catalyst comprising cobalt carbonyl in admixture with a metal substance selected from the group consisting of a metal of Groups I or II of the Periodic Table, useful as an oxo reaction catalyst by reacting the corresponding free metals or a compound thereof in a liquid medium with carbon monoxide and hydrogen in the presence of palladium, platinum or gold; (2) regenerating spent cobalt catalysts of the foregoing type by applying the same reagents and conditions to the spent catalyst.
Inventors
- 👤 S Usami
- 👤 K Nishimura
- 👤 S Fukushi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:20
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/1616; B01J23/00; B01J23/38; B01J23/40; B01J23/42; B01J23/44; B01J23/48; B01J23/52; B01J31/20; B01J31/26; B01J31/40; B01J31/4015; B01J31/4023; B01J31/403; C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; B01J21/00; B01J21/18; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2531/00; B01J2531/20; B01J2531/26; B01J2531/80; B01J2531/84; B01J2531/845; B01J31/02; B01J31/04; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584; Y10; Y10S; Y10S502/00; Y10S502/514
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
19 words
The process of claim 1 in which the molar ratio of hydrogen to carbon monoxide is 0.2 to 1.5:1.
Claim 2
Dependent Claim
21 words
The process of claim 1 in which the second metal of (2) is zinc, used in the form of its salt.
Claim 3
Dependent Claim
12 words
The process of claim 1 in which the noble metal is palladium.
Claim 4
Dependent Claim
26 words
The process of claim 1 in which the pressure is between 50 and 200 kg/cm2 and the temperature is in the range of 50* to 100*C.
Claim 5
Dependent Claim
169 words
A process for rejuvenating a used oxo reaction catalyst consisting essentially of cobalt carbonyl and second metal selected from the group consisting of a metal of Groups IA, IIA and IIB of the Periodic Table, in which the ratio of cobalt to said second metal is in the range of 0.5 to 5.0 to 1 parts by weight, which comprises separating from the reaction product of an oxo synthesis the liquor containing said used oxo reaction catalyst, reacting said liquor in an inert organic liquid medium with a hydrogen-containing carbon monoxide gas having a ratio of hydrogen to carbon monoxide in the range of 0.05 to 2.0 mols of hydrogen per mol of carbon monoxide, in the presence of a noble metal selected from the group consisting of palladium, platinum and gold, at a pressure in the range of 50 to 300 kg/cm2, at a temperature in the range of 50* to 200*C, to obtain a liquid reaction product containing cobalt carbonyl and said second metal as catalyst constituents.
Claim 6
Dependent Claim
18 words
The process of claim 6 in which the ratio of hydrogen to carbon monoxide is 0.2 to 1.5:1.
Claim 7
Dependent Claim
16 words
The method of claim 1 in which the metals used are cobalt oleate and zinc oleate.
Claim 8
Dependent Claim
21 words
The process of claim 1 in which the metals used are cobalt and zinc used in the form of their hydroxides.
Claim 9
Dependent Claim
82 words
The process of claim 1 carried out in a reaction tower having the noble metal in the form of a fixed bed catalyst and in which the zone above the bed is maintained as an organic solvent zone and the zone below the bed as an aqueous solvent zone, feeding the second metal material to be reacted to the bed by means of the aqueous layer and withdrawing the liquid reaction product from the reaction zone by means of organic solvent layer.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |