Process for preparing precipitated silicas

Details Process for preparing precipitated silicas Process for preparing precipitated silicas

C - Chemistry, Metallurgy

01

B

C01B 33/14 (2006.01) C01B 33/158 (2006.01)

Patent

CA 2103834

Abstract Process for preparing precipitated silicas A heated sodium silicate solution is partially neutralised by a first acid addition, the slurry is then allowed to age and a second acid addition achieves the completion of the neutralisation of the heated sodium silicate solution. The slurry is then filtered, washed and dried.

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