Process for the conversion of calcium sulfate dihydrate into...

Details Process for the conversion of calcium sulfate dihydrate into... Process for the conversion of calcium sulfate dihydrate into...

C - Chemistry, Metallurgy

04

B

23/104

C04B 11/26 (2006.01) B01D 53/34 (2006.01) C01F 11/46 (2006.01) C04B 11/024 (2006.01)

Patent

CA 1339049

Process for the conversion of calcium sulfate dihydrate from flue gas sulfur removal units into a bondable alpha-semihydrate in a salt solution used as a calcination agent. The scrubbing liquid from the flue gas desulfurization unit containing chloride is used as salt solution. The obtained alpha-semihydrate is washed and dried. Concentrated wash liquid is used with a calcium chloride content of 10 to 70 weight %.

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