| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 11.99 |
| PATENT ASSIGNEE | UOP |
| PATENT CLAIMS |
Prepn crystalline zeolitic aluminosilicate compn - Contacting crystalline EMC-2 zeolite having SiO2/Al2O3 = 6-10 with aq soln of fluorosilicate salt at 20-90C for time suffi cient to remove at least some of original framework Al & insert Si into framework, thereby forming said compn, the aq soln characterized in that it has a pH 3-7 & contains fluorosilicate in amount > 0.0075 moles of fluorosilicate/ 100 grams of EMC-2 zeolite |
| PATENT PHOTOCOPY | Available on request |
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