PROCESS FOR THE MANUFACTURE OF PULVERULENT, POROUS CRYSTALLINE METAL SILICATES EMPLOYING FLAME SPRAY PYROLYSIS

PROCESS FOR THE MANUFACTURE OF PULVERULENT, POROUS CRYSTALLINE METAL SILICATES EMPLOYING FLAME SPRAY PYROLYSIS

The present invention relates to a process for the manufacture of a pulverulent, porous crystalline metal silicate, comprising the following steps:(a) hydrothermal synthesis employing an aqueous mixture comprising(A) a silicon source,(B) a metal source, and(C) an auxiliary component,yielding an aque...

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Hauptverfasser: HAGEMANN, Michael Gerhard, KRESS, Peter, PASCALY, Matthias, HABERKORN, Julian Dominic, REINSDORF, Arne, ANTON, Johan, HEINROTH, Andrea, SCHMIDT, Franz, WIELAND, Stefan, MORELL, Heiko, LI, Zhen
Format: Patent
Sprache:eng
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CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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creator HAGEMANN, Michael Gerhard
KRESS, Peter
PASCALY, Matthias
HABERKORN, Julian Dominic
REINSDORF, Arne
ANTON, Johan
HEINROTH, Andrea
SCHMIDT, Franz
WIELAND, Stefan
MORELL, Heiko
LI, Zhen
description The present invention relates to a process for the manufacture of a pulverulent, porous crystalline metal silicate, comprising the following steps:(a) hydrothermal synthesis employing an aqueous mixture comprising(A) a silicon source,(B) a metal source, and(C) an auxiliary component,yielding an aqueous suspension of reaction product 1, comprising a raw porous crystalline metal silicate; and(b) flame spray pyrolysis of reaction product 1, wherein the aqueous suspension obtained in step (a) is sprayed into a flame generated by combustion of a fuel in the presence of oxygen to form a pulverulent, porous crystalline metal silicate;wherein the aqueous suspension comprising reaction product 1 obtained in step (a) exhibits a solids content of ≤70% by weight; andwherein the effective peak temperature, Teff, experienced by at least 90% by weight of the porous crystalline metal silicate during flame pyrolysis, is in the range Tmin
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subjects CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
title PROCESS FOR THE MANUFACTURE OF PULVERULENT, POROUS CRYSTALLINE METAL SILICATES EMPLOYING FLAME SPRAY PYROLYSIS
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