METHOD FOR PREPARING PRECIPITATED SILICA COMPRISING A STEP OF HIGH TEMPERATURE SPALLING

A process for preparing precipitated silica comprising a reaction of a silicate with an acidifying agent to obtain a suspension of precipitated silica (S1), followed by a step of separation to obtain a cake, a step of spalling said cake to obtain a suspension of precipitated silica (S2) and a step o...

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Bibliographic Details
Main Authors RACINOUX JOEL, NEVEU SYLVAINE, FOURNIER ELISE
Format Patent
LanguageEnglish
Korean
Published 01.12.2014
Subjects
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Summary:A process for preparing precipitated silica comprising a reaction of a silicate with an acidifying agent to obtain a suspension of precipitated silica (S1), followed by a step of separation to obtain a cake, a step of spalling said cake to obtain a suspension of precipitated silica (S2) and a step of drying said suspension, wherein the spalling step is carried out at a temperature of between 50 and 120° C.
Bibliography:Application Number: KR20147029145