PRODUCTION OF A TYPE ZEOLITE

PURPOSE:To improve yield, by blending an aqueous solution containing aluminate ion and sodium ion of specific concentrations with an aqueous solution containing silicate ion and sodium ion of specific concentrations at a given temperature and then heating. CONSTITUTION:An aqueous solution having 0.1...

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Bibliographic Details
Main Author YURA KEITA
Format Patent
LanguageEnglish
Published 27.11.1992
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:PURPOSE:To improve yield, by blending an aqueous solution containing aluminate ion and sodium ion of specific concentrations with an aqueous solution containing silicate ion and sodium ion of specific concentrations at a given temperature and then heating. CONSTITUTION:An aqueous solution having 0.1-0.3mol/l aluminate ion concentration and 0.05-3mol/l sodium ion concentration and an aqueous solution having 0.O2-0.1mol% silicate ion concentration and 0.05-4mol/l sodium ion are prepared. Then, the two aqueous solutions are mixed at <60 deg.C so as not to form a gelatinous substance. Ionic concentrations in the mixed state are adjusted to 0.05-0.15mol/l aluminate ion, 0.01-0.05mol/l silicate ion and 0.05-3.0mol/l sodium ion and the solution is heated at 60-100 deg.C to give crystals of A type zeolite in high yield.
Bibliography:Application Number: JP19910145436