Process of growing crystalline microporous solids in a fluoride-

Details Process of growing crystalline microporous solids in a fluoride- Process of growing crystalline microporous solids in a fluoride-

1993-01-29

1994-06-14

Bell, Mark L.

Chemistry of inorganic compounds

Zeolite

4233282, 423701, 423702, 423704, 423705, 423706, 423708, 502 64, C01B 3334, C01B 3320, C01B 3326, B01J 2906

Patent

active

053208226

ABSTRACT:
Crystalline microporous solids, such as aluminosilicate zeolites or silica molecular sieves, are grown in a fluoride-containing, substantially non-aqueous medium to form crystals on the order 0.3-3 mm in size. This growth process involves preparing a mixture containing one or more nutrients capable of forming the crystalline microporous solid, such as a source of silica and a source of alumina; water in a controlled amount; a growth medium comprising hydrogen fluoride and a nitrogen-containing organic base, such as pyridine; and optionally an organic solvent and/or a structure-directing agent; and thereafter heating the resulting mixture for a time sufficient to produce the crystalline microporous solid.

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