Thermal softening process

Details Thermal softening process Thermal softening process

C - Chemistry, Metallurgy

02

F

122/2

C02F 1/52 (2006.01) C02F 5/02 (2006.01)

Patent

CA 1217986

ABSTRACT A process for heating and softening of hard water by direct heat exchange with steam. The steam is directly sparged into the hard water within a reaction zone and condensed in the water under a pressure sufficient to prevent boiling at the reaction zone tempera- ture. The heated water is then withdrawn from the reaction zone without substantial vaporization of water and filtered to remove scale precipitates resulting from the heating step. At least a por- tion of the softened water may be heated to generate wet steam which is then recirculated to the reaction zone and sparged into the hard water therein.

453831

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