Patent ID: 9005573
Filing Date: 2015-04-14
Classification: B01J,C01B

Abstract:
1. A process for preparing a crystalline alumino-silicate zeolite having a three-dimensional framework of at least AlO 2 and SiO 2 tetrahedral units wherein the process comprises: a. forming a zeolite reaction mixture comprising sources of sodium, aluminum, silicon, optionally an E metal, optionally an M metal, at least one structure directing agent or agents X and optionally seeds of a layered material L of a first zeotype, the reaction mixture having a composition expressed in terms of mole ratios of the oxides of: where M represents at least one metal selected from the group consisting of zinc, Group 1 (IUPAC 1), Group 2 (IUPAC 2), Group 3 (IUPAC 3) and the lanthanide series of the periodic table, and any combination thereof, E is an element selected from the group consisting of gallium, iron, boron and combinations thereof, X is at least one organic molecule selected from the group consisting of tetraalkylammonium, tertiary amine, and A,Ω-dihalogen substituted alkane, “a” has a value of about 5 to about 30, “b” has a value of 0 to about 30, “q” has a value of about 1 to about 20, “e” has a value of 0 to about 1.0, “f” has a value of about 10 to about 500, “g” has a value of about 10 to about 5000, and the reaction mixture optionally further comprises from about 1 to about 10 wt.-% of seed zeolite L based on the amount of SiO b. heating the reaction mixture at a temperature of about 140° C. to about 200° C. under autogenous pressure for a period of time of about 12 hours to about 28 days to form a crystalline alumino-silicate zeolite of a second zeotype when seed zeolite L is employed and a crystalline alumino-silicate zeolite of a third zeotype when seed zeolite L is not employed, wherein the first zeotype, the second zeotype, and the third zeotype are not the same zeotypes.