Novel crystalline aluminosilicate zeolites and process for production thereof
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United States of America Patent
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Sep 22, 1987
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N/A
app pub date -
Feb 26, 1985
filing date -
Nov 4, 1980
priority date (Note) -
Expired
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Abstract
A novel crystalline aluminosilicate zeolite characterized by having a composition of the following general formula expressed in terms of the mole ratios of oxides in the anhydrous state xM.sub.2/n O.Al.sub.2 O.sub.3.ySiO.sub.2 wherein M represents at least one cation having a valence of n, x is a number between 0.5 and 4, and y is a number of at least 10, and having a specific X-ray diffraction pattern. Said crystalline aluminosilicate zeolite can be produced by maintaining a mixture of a water-soluble alkali metal compound, an N,N,N,N',N',N'-hexamethyl-1,6-hexane diammonium compound, a compound capable of giving silica under the reaction conditions, a compound capable of giving alumina under the reaction conditions and water, at a temperature of at least 80.degree. C. for a period sufficient to form crystals, and is useful as a catalyst for, for example, transalkylation or alkylation reaction of toluene, isomerization of xylene, isomerization of ethylbenzene to xylenes, etc.
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