US3201356A
Expired / Lapsed
US
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Molecular sieve catalyst activation process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-09-27
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Granted: 1965-08-17
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Expires: 1981-09-27
Abstract
No abstract record available.
Inventors
- 👤 Kress Herbert
- 👤 Bilisoly Julius Phillips
- 👤 Jr John Nelson Beard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:36
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/064; B01J29/068; B01J37/00; B01J37/16; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
AN IMPROVED PROCESS FOR ACTIVATING A CRYSTALLINE ZEOLITIC MOLECULAR SIEVE CATALYST COMPOSITED WITH A NOBLE METAL COMPONENT WHICH COMPRISES MAINTAINING SAID CATALYST UNDER SUPERATMOSPHERIC PRESSURE, DEHYDRATING SAID CATALYST TO A WATER CONTENT OF LESS THAN 1.8% BY WEIGHT OF CATALYST AT A TEMPERATURE BELOW ABOUT 320*F. AND THEREAFTER HEATING SAID CATALYST IN THE PRESENCE OF HYDROGEN AT TEMPERATURE ABOVE 320*F.
Claim 2
Dependent Claim
60 words
AN IMPROVED PROCESS FOR ACTIVATING A CRYSTALLINE ZEOLITIC MOLECULAR SIEVE CATALYST COMPOSITED WITH A NOBLE METAL COMPONENT WHICH COMPRISES MAINTAINING SAID CATALYST UNDER SUPERATMOSPHERIC PRESSURE, DEHYDRATING SAID CATALYST TO A WATER CONTENT OF LESS THAN 1.8% BY WEIGHT OF CATALYST AT A TEMPERATURE BELOW ABOUT 320*F. AND THEREAFTER HEATING SAID CATALYST IN THE PRESENCE OF HYDROGEN AT TEMPERATURE ABOVE 320*F.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |