Process for causticizing of an aqueous solution containing...

Details Process for causticizing of an aqueous solution containing... Process for causticizing of an aqueous solution containing...

D - Textiles, Paper

21

C

9/36.8

D21C 11/04 (2006.01) C01F 1/00 (2006.01)

Patent

CA 1279157

ABSTRACT Process for causticizing of an aqueous solution contain- ing alkali carbonate with calcium oxide and hydroxide by bringing the aqueous solution containing alkali carbonate into contact with the calcium oxide or hydroxide and by separating the alkali hydroxide solution arisen in the causticizing from the calcium carbonate precipitate. The aqueous solution containing alkali carbonate is conducted through a bed which has been formed by mixing calcium oxide and calcium carbonate in the causticized alkali solution and by removing the excess alkali solution.

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