US3098882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective hydrogenation procedure and catalyst therefor
Assignee: Chemetron Corp
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Filing: 1961-11-24
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Granted: 1963-07-23
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Expires: 1981-11-24
Abstract
No abstract record available.
Inventors
- 👤 Melvin R Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:52
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/08; C07C5/03; C07C2523/00; C07C2523/16; C07C2523/24; C07C2523/26; C07C2523/38; C07C2523/40; C07C2523/44; C07C2523/54; C07C2523/56; C07C2523/64; C07C2523/652
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A METHOD OF SELECTIVELY HYDROGENATING ACETYLENIC HYDROCARBONS IN A GAS WHEREIN TE MAJOR PROPORTION OF THE UNSATURATED HYDROCARBONS IS OLEFINIC, WHICH COMPRISES CONTACTING SAID GAS, ADMIXED WITH A QUANTITY OF HYDROGEN SUFFICIENT TO REDUCE THE ACETYLENIC HYDROCARBONS TO OLEFINS, WITH A PALLADIUM AND CHROMIUM ON ALUMINA CATALYST WHICH COMPRISES FROM 0.01% TO 0.5% BY WEIGHT OF PALLADIUM METAL AND FROM 0.01% TO 0.5% BY WEIGHT OF CHROMIUM METAL ON AN ALUMINA CARRIER, AT A TEMPERATURE IN THE RANGE OF 100* F. TO 400* F. AT AN HOURLY SPACE VELOCITY OF 50 TO 2000 VOLUMESOF GAS PER VOLUME OF CATALYST.
Claim 2
Independent Claim
99 words
A METHOD OF SELECTIVELY HYDROGENATING ACETYLENIC HYDROCARBONS IN A GAS WHEREIN TE MAJOR PROPORTION OF THE UNSATURATED HYDROCARBONS IS OLEFINIC, WHICH COMPRISES CONTACTING SAID GAS, ADMIXED WITH A QUANTITY OF HYDROGEN SUFFICIENT TO REDUCE THE ACETYLENIC HYDROCARBONS TO OLEFINS, WITH A PALLADIUM AND CHROMIUM ON ALUMINA CATALYST WHICH COMPRISES FROM 0.01% TO 0.5% BY WEIGHT OF PALLADIUM METAL AND FROM 0.01% TO 0.5% BY WEIGHT OF CHROMIUM METAL ON AN ALUMINA CARRIER, AT A TEMPERATURE IN THE RANGE OF 100* F. TO 400* F. AT AN HOURLY SPACE VELOCITY OF 50 TO 2000 VOLUMESOF GAS PER VOLUME OF CATALYST.
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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |