US3023237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing acrylic acid
Assignee: BASF SE
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Filing: 1959-05-01
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Granted: 1962-02-27
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Expires: 1979-05-01
Abstract
No abstract record available.
Inventors
- 👤 Reppe Walter
- 👤 Stadler Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:48
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/10; C07C51/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR THE PRODUCTION OF ACRYLIC ACID WHICH CONSISTS ESSENTIALLY OF CONTACTING A GASEOUS MIXTURE OF ACETYLENE AND CARBON MONOXIDE UNDER A PRESSURE EXCEEDING 5 ATMOSPHERES AND AT TEMPERATURES BETWEEN 150* AND 250*C. WITH AN AQUEOUS REACTION MIXTURE OF WATER CONTAINING AT MOST 40% BY VOLUME OF WATER AND AT LEAST 60% BY VOLUME OF AN ORGANIC, WATER-MISCIBLE INERT SOLVENT WITH RESPECT TO THE TOTAL VOLUME OF SAID WATER AND SAID SOLVENT, SAID AQUEOUS REACTION MIXTURE HAVING HOMOGENEOLY DISSOLVED THEREIN IONS OF A METAL OF THE IRON GROUP, HALIDE IONS FROM THE GROUP CONSISTING OF CHLORIDE, BROMIDE AND IODIDE, AND COPPER IONS.
Claim 2
Dependent Claim
103 words
A PROCESS FOR THE PRODUCTION OF ACRYLIC ACID WHICH CONSISTS ESSENTIALLY OF CONTACTING A GASEOUS MIXTURE OF ACETYLENE AND CARBON MONOXIDE UNDER A PRESSURE EXCEEDING 5 ATMOSPHERES AND AT TEMPERATURES BETWEEN 150* AND 250*C. WITH AN AQUEOUS REACTION MIXTURE OF WATER CONTAINING AT MOST 40% BY VOLUME OF WATER AND AT LEAST 60% BY VOLUME OF AN ORGANIC, WATER-MISCIBLE INERT SOLVENT WITH RESPECT TO THE TOTAL VOLUME OF SAID WATER AND SAID SOLVENT, SAID AQUEOUS REACTION MIXTURE HAVING HOMOGENEOLY DISSOLVED THEREIN IONS OF A METAL OF THE IRON GROUP, HALIDE IONS FROM THE GROUP CONSISTING OF CHLORIDE, BROMIDE AND IODIDE, AND COPPER IONS.
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) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |