Patent US3226339A successfully refreshed from Google Patents.
US3226339A
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Process for preparing a platinum metalcrystalline zeolite catalyst
Assignee: ExxonMobil Oil Corp
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Filing: 1958-11-17
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Granted: 1965-12-28
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Expires: 1978-11-17
Abstract
No abstract record available.
Inventors
- 👤 Vincent J Frilette
- 👤 Russell W Maatman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:13
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/064; B01J29/068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A METHOD FOR PREPARING A PLATINUM METAL-CONTAINING CATALYST WHICH COMPRISES CONTACTING A CRYSTALLINE ALUMINOSILICATE ZEOLITE INITIALLY FREE OF PLANTIUM METAL AND HAVING RIGID THREE DIMENSIONAL NETWORKS CHARACTERIZED BY UNIFORM INTERSTITIAL DIMENSIONS, SUFFICIENTLY LARGE TO PERMIT INTRODUCTION BY ION EXCHANGE OF A PLATINUM METAL-CONTAINING ION, WITH A SOLUTION OF AN IONIZABLE PLATINUM METAL COMPOUND AND AN IONIZABLE NON-PLATINUM METAL MINERAL ACID SALT FOR A SUFFICIENT PERIOD OF TIME TO EFFECT UNIFORM DISTRIBUTION ON THE CRYSTALLINE ZEOLITE OF A PLATINUM METAL-CONTAINING ION DERIVED FROM SAID SOLUTION, DRYING THE RESULTING COMPOSITE AND ACTIVATING THE SAME BY THERMALLY TREATING AT A TEMPERATURE IN THE APPROXIMATE RANGE OF 250*F. TO 1100*F. TO EFFECT AT LEAST PARTIAL CONVERSION OF SAID PLATINUM METAL-CONTAINING ION TO A CATALYTICALLY ACTIVE STATE.
Claim 2
Independent Claim
122 words
A METHOD FOR PREPARING A PLATINUM METAL-CONTAINING CATALYST WHICH COMPRISES CONTACTING A CRYSTALLINE ALUMINOSILICATE ZEOLITE INITIALLY FREE OF PLANTIUM METAL AND HAVING RIGID THREE DIMENSIONAL NETWORKS CHARACTERIZED BY UNIFORM INTERSTITIAL DIMENSIONS, SUFFICIENTLY LARGE TO PERMIT INTRODUCTION BY ION EXCHANGE OF A PLATINUM METAL-CONTAINING ION, WITH A SOLUTION OF AN IONIZABLE PLATINUM METAL COMPOUND AND AN IONIZABLE NON-PLATINUM METAL MINERAL ACID SALT FOR A SUFFICIENT PERIOD OF TIME TO EFFECT UNIFORM DISTRIBUTION ON THE CRYSTALLINE ZEOLITE OF A PLATINUM METAL-CONTAINING ION DERIVED FROM SAID SOLUTION, DRYING THE RESULTING COMPOSITE AND ACTIVATING THE SAME BY THERMALLY TREATING AT A TEMPERATURE IN THE APPROXIMATE RANGE OF 250*F. TO 1100*F. TO EFFECT AT LEAST PARTIAL CONVERSION OF SAID PLATINUM METAL-CONTAINING ION TO A CATALYTICALLY ACTIVE STATE.
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |