Process for preparation of a MEL-structural-type zeolite

Details Process for preparation of a MEL-structural-type zeolite Process for preparation of a MEL-structural-type zeolite

2011-01-11

2011-01-11

Brunsman, David M (Department: 1793)

Chemistry of inorganic compounds

Zeolite

Organic compound used to form zeolite

Reexamination Certificate

active

07867473

ABSTRACT:
A process for preparation of a MEL-structural-type zeolite that comprises at least the following stages:i) the mixture, in aqueous medium, of at least one source of at least one tetravalent element and at least one nitrogen-containing organic radical of the formula:in which n represents the methylene group number (CH2) and is equal to 6 or 7, and R1 and R2 represent alkyl groups that have 2 to 7 carbon atoms,ii) the hydrothermal treatment of said mixture until said MEL-structural-type zeolite is formed, is described.

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patent: WO 2004/013042 (2004-02-01), None
Lok et al, “The role of organic molecules in molecular sieve synthesis”, vol. 3, pp. 282-291, (Oct. 1983).
Preliminary Search Report completed Oct. 19, 2007 in French application 0702489.

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