Method of making a molecular sieve of MFS framework type with controllable average size

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United States of America Patent

PATENT NO 8853117
APP PUB NO 20120190896A1
SERIAL NO

13388331

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Abstract

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A method of making a crystalline molecular sieve of MFS framework type, preferably ZSM-57, from a synthesis mixture comprising at least one source of tetravalent element (Y), at least one source of trivalent element (X), at least one source of alkali metal hydroxide (MOH), at least one structure-directing-agent (R) and water, said alkali metal (M) comprising potassium, and having the following mole composition (expressed in terms of oxide):

description='In-line Formulae' end='lead'YO2:(p)X2O3:(q)OH−:(r)R:(s)H2O,description='In-line Formulae' end='tail'

wherein (p) is in the range from 0.005 to 0.05, (q) is in the range from 0.01 to 3, (r) is in the range from 0.03 to 2 and (s) is in the range from 10 to 75 (based on total weight of said synthesis mixture); wherein the crystals of molecular sieve formed having an average diameter (D) of less than or equal to 1.5 micron and an average thickness (T) of less than or equal to 300 nanometers.

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Patent Owner(s)

Patent OwnerAddress
EXXONMOBIL CHEMICAL PATENTS INC5200 BAYWAY DRIVE BAYTOWN TX 77520

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mertens, Machteld Maria Wilfried Boortmeerbeek, BE 5 134

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