US4010198A
Expired / Lapsed
US
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Process for the preparation of allyl acetate
Assignee: Hoechst AG
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Filing: 1974-10-03
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Granted: 1977-03-01
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Expires: 1994-10-03
Abstract
Abstract Process for the preparation of allyl acetate from acetic acid, propylene and oxygen in the gaseous phase in the presence of catalysts containing noble metals, using technical crude olefins containing less than 50 per cent by volume of propylene apart from propane.
Inventors
- 👤 Gunter Roscher
- 👤 Heinz Schmitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:55
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/0242; B01J8/025; C; C07; C07C; C07C67/00; C07C67/04; C07C67/05; C07C67/055; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00176; B01J2208/00265; B01J2208/00274
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
In a process for the preparation of allyl acetate from acetic acid, propylene and oxygen in the presence of carbon dioxide wherein a vapor phase mixture of said components is reacted, in a reaction zone, over a catalyst consisting essentially of a. a metal or salt of a metal selected from the group consisting of palladium, platinum, ruthenium, rhodium and iridium; b. an alkali metal or alkaline earth metal salt; and c. a support for said components (a) and (b) selected from the group consisting of silicic acid, aluminum oxide and aluminum silicate, the improvement which comprises: reacting a mixture of said components in said reaction zone in which the concentration of propylene is below 50 percent by volume and propane is present in an amount of from 0.2 to 5.0 times that of propylene.
Claim 2
Dependent Claim
135 words
In a process for the preparation of allyl acetate from acetic acid, propylene and oxygen in the presence of carbon dioxide wherein a vapor phase mixture of said components is reacted, in a reaction zone, over a catalyst consisting essentially of a. a metal or salt of a metal selected from the group consisting of palladium, platinum, ruthenium, rhodium and iridium; b. an alkali metal or alkaline earth metal salt; and c. a support for said components (a) and (b) selected from the group consisting of silicic acid, aluminum oxide and aluminum silicate, the improvement which comprises: reacting a mixture of said components in said reaction zone in which the concentration of propylene is below 50 percent by volume and propane is present in an amount of from 0.2 to 5.0 times that of propylene.
Claim 3
Dependent Claim
21 words
A process as recited in claim 1 wherein the propylene concentration in the reaction mixture is below 30 percent by volume.
Claim 4
Dependent Claim
23 words
A process as recited in claim 1 wherein said propane is present in from 0.5 to 2.0 times the amount of said propylene.
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) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |