US4257972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for producing polyhydric alcohols and derivatives
Assignee: Union Carbide Corp
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Filing: 1979-07-31
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Granted: 1981-03-24
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Expires: 1999-07-31
Abstract
Abstract A novel catalyst and process for the manufacture of polyhydric alcohol(s) from synthesis gas. This novel catalyst is a rhodium carbonyl phosphido cluster compound. In particular, the anion cluster of the rhodium carbonyl phosphido compound is of the following empirical formula: [Rh.sub.9 P (CO).sub.21 ].sup.-2
Inventors
- 👤 Jose L. Vidal
- 👤 Wellington E. Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:13
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/20; B01J31/18; B01J31/1845; C; C07; C07C; C07C29/00; C07C29/15; C12; C12C; C12C11/00; C12C11/02; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/822; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
25 words
A rhodium carbonyl phosphido cluster compound which is the combination of an anion of the following empirical formula: [Rh.sub.9 P(CO).sub.21 ].sup.-2 associated with a cation.
Claim 2
Dependent Claim
25 words
A rhodium carbonyl phosphido cluster compound which is the combination of an anion of the following empirical formula: [Rh.sub.9 P(CO).sub.21 ].sup.-2 associated with a cation.
Claim 3
Dependent Claim
14 words
A rhodium carbonyl phosphido cluster compound of the following formula: Cs.sub.2 [Rh.sub.9 P(CO).sub.21 ].
Claim 4
Dependent Claim
14 words
A rhodium carbonyl phosphido cluster compound of the following formula: Cs.sub.2 [Rh.sub.9 P(CO).sub.21 ].
Claim 5
Dependent Claim
20 words
A rhodium carbonyl phosphido cluster compound of the following formula: [C.sub.6 H.sub.5 CH.sub.2 N(C.sub.2 H.sub.5).sub.3 ].sub.2 [Rh.sub.9 P(CO).sub.21 ]CH.sub.3 C(O)CH.sub.3.
Claim 6
Dependent Claim
20 words
A rhodium carbonyl phosphido cluster compound of the following formula: [C.sub.6 H.sub.5 CH.sub.2 N(C.sub.2 H.sub.5).sub.3 ].sub.2 [Rh.sub.9 P(CO).sub.21 ]CH.sub.3 C(O)CH.sub.3.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |