Method for preparing copper exchanged type x zeolite
Abstract
Abstract COPPER-EXCHANGED TYPE X ZEOLITE IS PREPARED BY IONEXCHANGING A SODIUM TYPE X ZEOLITE WITH A COPPER SALT SOLUTION, HEATING THE ZEOLITE TO EFFECT AT LEAST PARTIAL DEHYDRATION OF THE ZEOLITE, CONTACTING THE ZEOLITE WITH A MIXTURE COMPRISING A CUPROUS SALT AND A HYDROCARBON CAPABLE OF FORMING A SOLUBLE COMPLEX WITH THE CUPROUS SALT AND PASSING THE PORE OPENINGS OF THE ZEOLITE, SUBJECTING THE ZEOLITE TO REDUCING CONDITIONS TO EFFECT AT LEAST A PARTIAL REDUCTION OF THE CUPRIC IONS TO CUPROUS IONS, AND HYDRATING THE ZEOLITE TO A DESIRED WATER CONTENT. THE PRODUCT IS PARTICULARLY USEFUL IN THE SELECTIVE SEPARATION OF OLEFINIC HYDROCARBONS FROM SATURATED HYDROCARBONS IN THE PRESENCE OF CONTAMINANT AROMATIC HYDROCARBONS.
Inventors
- 👤 D Rosback
Bibliographic Details
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
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