Synthesis of zsm-23 zeolite

Details Synthesis of zsm-23 zeolite Synthesis of zsm-23 zeolite

C - Chemistry, Metallurgy

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B

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C01B 39/48 (2006.01) C01B 37/02 (2006.01)

Patent

CA 1243654

F-3100 ABSTRACT In a method of synthesizing highly siliceous ZSM-23 zeolite, an aqueous reaction mixture is prepared which comprises sources of an alkali metal, optionally an oxide of aluminum, an oxide of silicon, water and a nitrogen-containing organic cation R++, and which has the following composition, in terms of mole ratios: Image wherein Mn+ is a cation of an alkali or alkaline earth metal of valence n and R++ is an organic cation of the formula (CH3)3 ? - R1 - ?(CH3)3 wherein R1 is a saturated or unsaturated straight chain hydrocarbon group having seven carbon atoms. The reaction mixture is maintained at crystallization conditions until crystals of the ZSM-23 zeolite are formed, whereafter the crystals are separated from the liquid and recovered.

491870

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