US3356734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of acetaldehyde
Assignee: Individual
•
Filing: 1963-09-26
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Granted: 1967-12-05
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Expires: 1983-09-26
Abstract
No abstract record available.
Inventors
- 👤 Kuraishi Michio
- 👤 Takahashi Atsuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:28
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/51; C07C45/511; C07C45/515; C07C45/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR MANUFACTURING ACETALDEHYDE WHICH COMPRISES REACTING METHANOL WITH HYDROGEN AND CARBON MONOXIDE IN THE PRESENCE OF FROM ABOUT 0.1 TO ABOUT 2 MILLIMOLES OF A METHANOL SOLUBLE COBALT CATALYST PER MOLE OF METHANOL, SAID TOBALT CATALYST PROMOTED BY A HALOGEN PROMOTER SELECTED FROM THE GROUP CONSISTING OF IODINE, BROMINE, CHLORINE, ALKALI METAL IODIDES, ALKALI METAL BROMIDES, ALKALI METAL CHLORIDES, ALKALINE EARTH METAL IODIDES, ALKALINE EARTH METAL BROMIDES, AND ALKALINE EARTH METAL CHLORIDES, AT A REACTION TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 150*C. TO ABOUT 250*C. AND A REACTION PRESSURE FROM ABOUT 200 TO ABOUT 700 ATMOSPHERES GAUGE.
Claim 2
Dependent Claim
100 words
A PROCESS FOR MANUFACTURING ACETALDEHYDE WHICH COMPRISES REACTING METHANOL WITH HYDROGEN AND CARBON MONOXIDE IN THE PRESENCE OF FROM ABOUT 0.1 TO ABOUT 2 MILLIMOLES OF A METHANOL SOLUBLE COBALT CATALYST PER MOLE OF METHANOL, SAID TOBALT CATALYST PROMOTED BY A HALOGEN PROMOTER SELECTED FROM THE GROUP CONSISTING OF IODINE, BROMINE, CHLORINE, ALKALI METAL IODIDES, ALKALI METAL BROMIDES, ALKALI METAL CHLORIDES, ALKALINE EARTH METAL IODIDES, ALKALINE EARTH METAL BROMIDES, AND ALKALINE EARTH METAL CHLORIDES, AT A REACTION TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 150*C. TO ABOUT 250*C. AND A REACTION PRESSURE FROM ABOUT 200 TO ABOUT 700 ATMOSPHERES GAUGE.
References Cited (Backward Citations)
US3091644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |