Patent US3301906A successfully refreshed from Google Patents.
US3301906A
Expired / Lapsed
US
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Oxidation of isobutylene to methacrolein
Assignee: Petro Tex Chemical Corp
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Filing: 1963-06-27
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Granted: 1967-01-31
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Expires: 1983-06-27
Abstract
No abstract record available.
Inventors
- 👤 Alfio J Besozzi
- 👤 William F Brill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:31
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/16; B01J27/18; B01J27/1802; B01J27/1817; C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS FOR THE VAPOR PHASE PRODUCTION OF METHACROLEIN WHICH COMPRISES CONTACTING A MIXTURTE OF ISOBUTYLENE AND OXYGEN IN A MOLAR RATIO OF ONE MOL OF ISOBUTYLENE TO 0.1 TO 3 MOLS OF OXYGEN AT AN ELEVATED TEMPERATURE IN THE RANGE OF ABOUT 450*C. TO 750*C. WITH A CATALYST CONTAINING ATOMS OF COPPER AND PHOSPHORUS IN AN ATOMIC RATIO OF 1 TO 1 TO 10 TO 1 IN THE PRESENCE OF A SULFUR COMPOUND CONTAINING AT LEAST TWO ATOMS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND OXYGEN PRESENT IN AN AMOUNT TO PROVIDE FROM 0.001 TO 0.1 MOL EQUIVALENT OF SULFUR PER MOL OF ISOBUTYLENE, FOR ABOUT 0.005 TO 1 SECOND.
Claim 2
Dependent Claim
112 words
A PROCESS FOR THE VAPOR PHASE PRODUCTION OF METHACROLEIN WHICH COMPRISES CONTACTING A MIXTURTE OF ISOBUTYLENE AND OXYGEN IN A MOLAR RATIO OF ONE MOL OF ISOBUTYLENE TO 0.1 TO 3 MOLS OF OXYGEN AT AN ELEVATED TEMPERATURE IN THE RANGE OF ABOUT 450*C. TO 750*C. WITH A CATALYST CONTAINING ATOMS OF COPPER AND PHOSPHORUS IN AN ATOMIC RATIO OF 1 TO 1 TO 10 TO 1 IN THE PRESENCE OF A SULFUR COMPOUND CONTAINING AT LEAST TWO ATOMS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND OXYGEN PRESENT IN AN AMOUNT TO PROVIDE FROM 0.001 TO 0.1 MOL EQUIVALENT OF SULFUR PER MOL OF ISOBUTYLENE, FOR ABOUT 0.005 TO 1 SECOND.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |