US3031508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of aldehydes by catalytic oxidation
Assignee: Petro Tex Chemical Corp
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Filing: 1959-03-13
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Granted: 1962-04-24
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Expires: 1979-03-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert W Etherington
- 👤 Calvin N Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:38
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/195; B01J27/198; C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PROCESS FOR THE PREPARATION OF UNSATURATED ALIPHATIC ALDEHYDES WHICH COMPRISES PASSING AT A TEMPERATURE IN THE RANGE OF ABOUT 475*C. TO 650*C. A GASEOUS MIXTURE OF A HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF PROPYLENE AND ISOBUTYLENE AND OXYGEN THROUGH A TUBULAR REACTOR CONTAINING A VANADIUM OXYPHOSPHATE CATALYST COMPLEX WHEREIN SAID CATALYST COMPLEX CONTAINS VANADIUM AND PHOSPHOROUS IN A GRAM ATOMIC RATIO OF ONE GRAM ATOM OF VANADIUM TO ONE TO THREE GRAM ATOMS OF PHOSPHOROUS, SAID GASEOUS MIXTURE CONTAINING FROM ABOUT ONEHALF TO ABOUT THREE MOLE PERCENT OF THE SAID HYDROCARBON.
Claim 2
Dependent Claim
93 words
A PROCESS FOR THE PREPARATION OF UNSATURATED ALIPHATIC ALDEHYDES WHICH COMPRISES PASSING AT A TEMPERATURE IN THE RANGE OF ABOUT 475*C. TO 650*C. A GASEOUS MIXTURE OF A HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF PROPYLENE AND ISOBUTYLENE AND OXYGEN THROUGH A TUBULAR REACTOR CONTAINING A VANADIUM OXYPHOSPHATE CATALYST COMPLEX WHEREIN SAID CATALYST COMPLEX CONTAINS VANADIUM AND PHOSPHOROUS IN A GRAM ATOMIC RATIO OF ONE GRAM ATOM OF VANADIUM TO ONE TO THREE GRAM ATOMS OF PHOSPHOROUS, SAID GASEOUS MIXTURE CONTAINING FROM ABOUT ONEHALF TO ABOUT THREE MOLE PERCENT OF THE SAID HYDROCARBON.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |