PROCESS FOR PREPARING AQUEOUS COLLOIDAL SILICA SOLS OF HIGH PURITY FROM ALKALI METAL SILICATE SOLUTIONS

The present invention relates to a process for preparing aqueous colloidal silica sols of high purity from silicate solutions, to aqueous colloidal silica sols with a specific profile of impurities, and to the use thereof. The invention further encompasses high-purity aqueous silica obtained as an i...

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Main Authors MARKOWZ, GEORG, FUHRMANN, CLAUDIA, RAULEDER, HARTWIG, OEHM, DIETER, PAULAT, FLORIAN, LANG, JUERGEN ERWIN, SCHUETTE, RUEDIGER, PANZ, CHRISTIAN, FRINGS, BODO
Format Patent
LanguageEnglish
French
German
Published 01.01.2014
Subjects
ADHESIVES
CHEMISTRY
COMPOUNDS THEREOF
DYES
INORGANIC CHEMISTRY
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-METALLIC ELEMENTS
PAINTS
POLISHES
POLISHING COMPOSITIONS OTHER THAN FRENCH POLISH
SKI WAXES
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Summary:The present invention relates to a process for preparing aqueous colloidal silica sols of high purity from silicate solutions, to aqueous colloidal silica sols with a specific profile of impurities, and to the use thereof. The invention further encompasses high-purity aqueous silica obtained as an intermediate in the course of the purification process, high-purity silicon dioxide obtainable by dewatering, and the use thereof.
Bibliography:Application Number: EP20120705088