METHOD FOR SYNTHESIZING SILICA-ENRICHED CRYSTALLINE ALUMINOSILICATE HAVING STRUCTURE OF MAZZITE, OBTAINED ALUMINOSILICATE AND ITS USE AS CATALYST FOR CONVERSION OF HYDROCARBON

Japanese Patent JPH06279019

A

PURPOSE: To obtain a crystalline aluminosilicate useful for the conversion of an org. matrix and as a molecular sieve by hydrothermally crystallizing a gel contg. sources of tetravalent silicon, a zeolite Y in the form of spheres and an alkali metal in the presence of an org. structuring agent.

CONSTITUTION: A crystallizable gel contg. a source of tetravalent silicon, a source of trivalent aluminum, a source of alkali metal ions, an org. structuring agent and water is prepd. and crystallized by heating. The formed crystals are isolated, washed, dried, heat-treated in a moist atmosphere and digested with an inorg. acid. The source of trivalent aluminum is zeolite Y crystals in the form of spheres or a bunch of grapes. In such a way, the objective silica- enriched crystalline aluminosilicate having the structure of mazzite is produced.

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FURANSESUKO DEI RENZO
FURANSOWA FUAJIYURA
NITSUSO BARUBUU
FURETSUDO FUITOUUSHI
FUIRITSUPU SHIYURUZU
TEIERII DE KURIEERU

JP33997793A

October 04, 1994

December 07, 1993

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ELF AQUITAINE

B01J20/18; B01J29/08; B01J29/70; C01B39/04; C01B39/24; C01B39/34; C07C2/12; C07C4/06; C07C5/22; C07C5/27; C07C9/16; C10G11/05; C10G47/16; C10G50/00; (IPC1-7): C01B33/34; B01J29/08; C07C5/27; C07C9/16

Yuzo Yamazaki (2 outside)

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