US3202664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for dealkylating and hydrogenation of organic compounds
Assignee: Commonwealth Scientific and Industrial Research Organisation
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Filing: 1962-05-18
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Granted: 1965-08-24
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Expires: 1982-05-18
Abstract
No abstract record available.
Inventors
- 👤 Brooks James Douglas
- 👤 Harrisson Raymond John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:19
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07C; C07C1/00; C07C1/20; C07C4/00; C07C4/08; C07C4/12; C07C4/14; C07C4/16; C10; C10G; C10G2400/00; C10G2400/30; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
PROCESS FOR DEALKYLATING AND HYDROGENATING GASEOUS BY-PRODUCT COMPOUNDS FROM GAS AND COKE PRODUCTION, SAID BY-PRODUCTS COMPRISING ALKYL AROMATIC HYDROCARBONS, ALKYL PHENOLS, AND ALKYL AROMATIC BASES ADMIXED WITH PARAFFINIC AND OLEFINIC HYDROCARBONS, COMPRISING (1) MIXING SAID COMPOUNDS IN THE GASEOUS STATE WITH MOLECULAR HYDROGEN, (2) CONTACTING THE RESULTANT GASEOUS ADMIXTURE WITH METALLIC FILAMENT IN A REACTION ZONE WHILE CONCOMITANTLY MAINTAINING SAID ZONE AT A TEMPERATURE SUFFICIENTLY HIGH TO PREVENT CONDENSATION OF ORGANIC VAPORS, SAID FILAMENT BEING HEATED TO A TEMPERATURE BETWEEN 1000 AND 1500*C., WHEREBY ATOMIC HYDROGEN IS FORMED AT SAID FILAMENT, AND (3) CONDENSING THE RESULTANT DEALKYLATED PRODUCT.
Claim 2
Dependent Claim
98 words
PROCESS FOR DEALKYLATING AND HYDROGENATING GASEOUS BY-PRODUCT COMPOUNDS FROM GAS AND COKE PRODUCTION, SAID BY-PRODUCTS COMPRISING ALKYL AROMATIC HYDROCARBONS, ALKYL PHENOLS, AND ALKYL AROMATIC BASES ADMIXED WITH PARAFFINIC AND OLEFINIC HYDROCARBONS, COMPRISING (1) MIXING SAID COMPOUNDS IN THE GASEOUS STATE WITH MOLECULAR HYDROGEN, (2) CONTACTING THE RESULTANT GASEOUS ADMIXTURE WITH METALLIC FILAMENT IN A REACTION ZONE WHILE CONCOMITANTLY MAINTAINING SAID ZONE AT A TEMPERATURE SUFFICIENTLY HIGH TO PREVENT CONDENSATION OF ORGANIC VAPORS, SAID FILAMENT BEING HEATED TO A TEMPERATURE BETWEEN 1000 AND 1500*C., WHEREBY ATOMIC HYDROGEN IS FORMED AT SAID FILAMENT, AND (3) CONDENSING THE RESULTANT DEALKYLATED PRODUCT.
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |