Method of synthesizing zincosilicate or stannosilicate or...

Details Method of synthesizing zincosilicate or stannosilicate or... Method of synthesizing zincosilicate or stannosilicate or...

C - Chemistry, Metallurgy

01

B

23/185, 134/3.7

C01B 33/20 (2006.01) B01J 23/06 (2006.01) B01J 23/14 (2006.01) B01J 29/04 (2006.01) B01J 29/89 (2006.01) C01B 33/36 (2006.01) C01B 39/08 (2006.01) C11D 3/12 (2006.01)

Patent

CA 1176029

23410-224R ABSTRACT Sodium zinco/stanno/titano-silicate is synthesized by mixing a concentrated aqueous sodium zincate (stannate, titanate) solution with a source of silica (e.g. powdered glass or sodium metasilicate solution) in the ratio 60g sodium silicate to sodium zincate equivalent to 8.1g zinc oxide, keeping the temperature at 40°C for 1/2 hour, diluting threefold with water of 20°C, allowing a precipitate to form overnight, and filtering and drying the residue at 110°C. The resulting sodium zincosilicate may be used in its own right as a water softener or may be converted by cation exchange into any other desired zincosilicate.

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