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Patent US4096193A successfully refreshed from Google Patents.
US4096193A
Expired / Lapsed
US
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Production of alpha beta olefinically unsaturated alcohols
Assignee: Celanese Corp
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Filing: 1976-08-02
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Granted: 1978-06-20
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Expires: 1996-08-02
Abstract
Abstract This invention provides an improved hydrogenation process for converting α,β-olefinically unsaturated carbonylic compounds into the corresponding allylic alcohol derivatives in the presence of a novel silver-cadmium alloy catalyst. Acrolein is hydrogenated to allyl alcohol with 100 percent conversion and 70 percent yield.
Inventors
- 👤 Thomas H. Vanderspurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:05
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/143; C07C29/145; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/66; C07C29/14; C07C29/141
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
104 words
An improved hydrogenation process for converting a α,β-olefinically unsaturated carbonylic compound into the corresponding allylic alcohol derivative which comprises reacting an α,β-olefinically unsaturated carbonylic compound with hydrogen in the vapor phase at a temperature between about 0° and 300° C and a pressure between about 15 and 15,000 psi in the presence of a catalyst comprising a silver-cadmium alloy on a carrier substrate, wherein the atomic ratio of silver to cadmium in the alloy is in the range of between about 0.1 and 3 to 1, and the alloy exhibits an X-ray diffraction pattern which is substantially free of detectable unalloyed metal crystallite lines.
Claim 2
Dependent Claim
104 words
An improved hydrogenation process for converting a α,β-olefinically unsaturated carbonylic compound into the corresponding allylic alcohol derivative which comprises reacting an α,β-olefinically unsaturated carbonylic compound with hydrogen in the vapor phase at a temperature between about 0° and 300° C and a pressure between about 15 and 15,000 psi in the presence of a catalyst comprising a silver-cadmium alloy on a carrier substrate, wherein the atomic ratio of silver to cadmium in the alloy is in the range of between about 0.1 and 3 to 1, and the alloy exhibits an X-ray diffraction pattern which is substantially free of detectable unalloyed metal crystallite lines.
Claim 3
Dependent Claim
13 words
A process in accordance with claim 1 wherein the carbonylic compound is acrolein.
Claim 4
Dependent Claim
13 words
A process in accordance with claim 1 wherein the carbonylic compound is methacrolein.
Claim 5
Dependent Claim
13 words
A process in accordance with claim 1 wherein the carbonylic compound is crotonaldehyde.
Claim 6
Dependent Claim
14 words
A process in accordance with claim 1 wherein the carbonylic compound is methylvinyl ketone.
Claim 7
Dependent Claim
14 words
A process in accordance with claim 1 wherein the carbonylic compound is methylisopropenyl ketone.
Claim 8
Dependent Claim
21 words
A process in accordance with claim 1 wherein the silver-cadmium alloy consists of more than about 50 percent γ-phase silver-cadmium crystallites.
Claim 9
Dependent Claim
35 words
A process in accordance with claim 1 wherein the silver-cadmium alloy consists of more than 50 percent α-phase silver-cadmium crystallites, and the X-ray diffraction pattern of the α-phase silver-cadmium alloy does not exhibit line splitting.
Claim 10
Dependent Claim
34 words
A process in accordance with claim 1 wherein the silver-cadmium alloy consists essentially of α-phase and γ-phase silver-cadmium crystallites, and the X-ray diffraction pattern of the α-phase silver-cadmium alloy does not exhibit line splitting.
Claim 11
Dependent Claim
39 words
A process in accordance with claim 1 wherein the silver cadmium alloy consists essentially of α-phase, γ-phase, and ε-phase silver cadmium alloy crystallites, and the X-ray diffraction pattern of the α-phase silver cadmium alloy does not exhibit line splitting.
References Cited (Backward Citations)
US2763696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |