METHOD OF PREPARING CRYSTALLINE ZEOLITE CATALYST OF HIGH ACTIVITY
Super active catalyst of high hydrocarbon conversion activity prepared by contacting crystalline zeolite materials of silica/alumina mole ratios greater than 7 and having a constraint index between 1/2 and 12 with steam followed by base exchange of the resultant steamed product with an ammonium salt...
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Format: | Patent |
Sprache: | eng ; fre |
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Zusammenfassung: | Super active catalyst of high hydrocarbon conversion activity prepared by contacting crystalline zeolite materials of silica/alumina mole ratios greater than 7 and having a constraint index between 1/2 and 12 with steam followed by base exchange of the resultant steamed product with an ammonium salt. |
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