Process for manufacture of chlorinated lime solution

Details Process for manufacture of chlorinated lime solution Process for manufacture of chlorinated lime solution

C - Chemistry, Metallurgy

01

B

23/141

C01B 11/06 (2006.01)

Patent

CA 1071840

ABSTRACT OF THE DISCLOSURE A process for the preparation of chlorinated lime solution having a low iron content in which an aqueous slurry of lime containing iron impurities is admixed with an iron reducing proportion of an alkali metal silicate or alkali metal hydroxide. The mixture is chlorinated to form a slurry of insoluble impurities including iron in a chlorinated lime solution comprising calcium hypochlorite and calcium chloride. m e insoluble impurities are separated and a chlorinated lime solution having low iron content is obtained which has improved stability. The chlorinated lime solution may be used as bleach liquor or further reacted to produce a calcium hypochlorite product having a greatly reduced iron content which enhances stability and gives improved color characteristics.

209529

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