Aluminosilicates
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United States of America Patent
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-
Apr 1, 1997
Grant Date -
N/A
app pub date -
Jul 9, 1996
filing date -
Nov 2, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Process for manufacturing an alkali metal aluminosilicate of zeolite P type, wherein sodium silicate solution, sodium aluminate solution and sodium hydroxide are mixed together in a first reacting zone, the mixture reacting to form amorphous aluminosilicate and supersaturated mother liquor and being then transferred from this first reacting zone to a second reacting zone, the transferred mixure having a degree of crystallinity below 30%, preferably 20%, the mixture being afterwards allowed to fully convert into P type zeolite, the resulting product being eventually filtered, washed and dried.
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