Flocculant for water treatment and method for producing it

Details Flocculant for water treatment and method for producing it Flocculant for water treatment and method for producing it

C - Chemistry, Metallurgy

02

F

C02F 1/52 (2006.01) C01B 33/141 (2006.01)

Patent

CA 2052449

A flocculant for water treatment containing a highly polymerized silicic acid solution having a high concentration of SiO2 and an extremely low concentration of alkali metal substance, and a method for producing such flocculant. The silicic acid solution is prepared by dealkalimetalization of an aqueous solution of an alkali metal silicate such as water glass and re-liquefaction of the solution after once gelling. The flocculant may further contain a water soluble metal salt such as ferric chloride or ferric nitrate.

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