Patent US3027411A successfully refreshed from Google Patents.
US3027411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for oxidizing a normally gaseous hydrocarbon
Assignee: Gulf Research and Development Co
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Filing: 1959-06-22
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Granted: 1962-03-27
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Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Clarence R Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:33
CPC Classifications
C; C07; C07C; C07C47/00; C07C47/02; C07C47/04; C07C45/00; C07C45/27; C07C45/28; C07C47/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A PROCESS FOR OXIDIZING A NORMALLY GASEOUS HYDROCARBON WHICH COMPRISES SUBJECTING SAID HYDROCARBON IN ADMIXTURE WITH OXYGEN TO OXIDATION AT A TEMPERATURE OF ABOUT 650* TO ABOUT 850*F. AND A PRESSURE OF ABOUT 0 TO ABOUT 200 POUNDS PER SQUARE INCH GAUGE FOR ABOUT 0.1 TO ABOUT 2 SECONDS TO PRODUCE AN OXYGENATED PRODUCT PREDOMINATING IN FORMALDEHYDE AND ACERALDEHYDE AND UNREACTED GASEOUS HYDROCARBONS, SEPARATING UNREACTED GASEOUS HYDROCARBONS FROM SAID OXYGENATED PRODUCT, PREHEATING SAID UNREACTED GASEOUS HYDROCARBONS TO A TEMPERATURE OF ABOUT 600* TO ABOUT 800*F. AND A PRESSURE OF ABOUT 0 TO ABOUT 200 POUNDS PER SQUARE INCH GAUGE, ADMIXING WITH SAID PREHEATED GASEOUS HYDROCARBON FRESH GASEOUS HYDROCARBON AND OXYGEN, AND THEREAFTER SUBJECTING THE RESULTING MIXTURE TO THE AFORESAID OXIDATION REACTION, WHEREBY THE RATIO OF FORMALDEHYDE TO ACETALDEHYDE PRODUCT IS INCREASED.
Claim 2
Dependent Claim
131 words
A PROCESS FOR OXIDIZING A NORMALLY GASEOUS HYDROCARBON WHICH COMPRISES SUBJECTING SAID HYDROCARBON IN ADMIXTURE WITH OXYGEN TO OXIDATION AT A TEMPERATURE OF ABOUT 650* TO ABOUT 850*F. AND A PRESSURE OF ABOUT 0 TO ABOUT 200 POUNDS PER SQUARE INCH GAUGE FOR ABOUT 0.1 TO ABOUT 2 SECONDS TO PRODUCE AN OXYGENATED PRODUCT PREDOMINATING IN FORMALDEHYDE AND ACERALDEHYDE AND UNREACTED GASEOUS HYDROCARBONS, SEPARATING UNREACTED GASEOUS HYDROCARBONS FROM SAID OXYGENATED PRODUCT, PREHEATING SAID UNREACTED GASEOUS HYDROCARBONS TO A TEMPERATURE OF ABOUT 600* TO ABOUT 800*F. AND A PRESSURE OF ABOUT 0 TO ABOUT 200 POUNDS PER SQUARE INCH GAUGE, ADMIXING WITH SAID PREHEATED GASEOUS HYDROCARBON FRESH GASEOUS HYDROCARBON AND OXYGEN, AND THEREAFTER SUBJECTING THE RESULTING MIXTURE TO THE AFORESAID OXIDATION REACTION, WHEREBY THE RATIO OF FORMALDEHYDE TO ACETALDEHYDE PRODUCT IS INCREASED.
References Cited (Backward Citations)
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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) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |