| 摘要 |
A crystalline, galliosilicate molecular sieve having the erionite-type structure and the following composition expressed in terms of oxide mole ratios in the anhydrous state: Ga2O3:xSiO2:yM2O:zN2O:tQ 2O where M is an alkali metal, preferably sodium, N is an alkali metal other than M, preferably potassium, Q is a cation derived from the templating agent used in synthesizing the galliosilicate molecualr sieve, preferably a choline cation, x equals 5.5 to 30, y equals 0.1 to 0.9, z equals 0.1 to 0.9, t equals 0.1 to 0.6 and y+z+t equals about 1.0. The crystalline, galliosilicate molecular sieve of the invention may be employed, after reducing its alkali metal content, as a component of a catalyst which can be used in a variety of chemical conversion processes, preferably hydrocarbon conversion processes, and most preferably hydrodewaxing, hydrocracking and isomerization processes.
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