METHOD OF PREPARING ZEOLITE BETA

METHOD OF PREPARING ZEOLITE BETA

synthesis of zeolites. SUBSTANCE: method comprises dissolving tetra- ethyl ammonium bromide in water, mixing the resulting solution with sources of silicon, aluminium, sodium oxides, water, aqueous emulsion of seed crystals of zeolite Beta at zeolite to water weight ratio of 0.08- 0.12. Synthesis of...

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Hauptverfasser: SKORNIKOVA S.A, PORUBLEV M.A, CHENETS V.V, SHAKUN A.N, ZELENTSOV JU.N, FEDOROVA M.L, POSOKHOVA O.M
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Sprache:eng ; rus
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CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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creator SKORNIKOVA S.A
PORUBLEV M.A
CHENETS V.V
SHAKUN A.N
ZELENTSOV JU.N
FEDOROVA M.L
POSOKHOVA O.M
description synthesis of zeolites. SUBSTANCE: method comprises dissolving tetra- ethyl ammonium bromide in water, mixing the resulting solution with sources of silicon, aluminium, sodium oxides, water, aqueous emulsion of seed crystals of zeolite Beta at zeolite to water weight ratio of 0.08- 0.12. Synthesis of zeolite is carried out without ammonium hydroxide at pH of reaction mixture of 12.5-14, molar ratios in reaction mixture being as follows: SiO2/Al2O3 is 25-50; H2O/SiO2 is 14-20; TEA+/SiO2 is 0.29-0.40; Na2O/SiO2 is 0.08-0.12; OH-/SiO2 is 0.16-0.24. Method makes it possible to reduce zeolite crystallization time to 36-120 hours. EFFECT: more efficient preparation method. 2 cl, 10 ex, 1 tbl
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subjects CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
title METHOD OF PREPARING ZEOLITE BETA
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