C - Chemistry – Metallurgy – 01 – C
Patent
C - Chemistry, Metallurgy
01
C
C01C 1/02 (2006.01) B01D 53/50 (2006.01) B09B 3/00 (2006.01) C01G 31/00 (2006.01) C01G 31/02 (2006.01) F23J 15/02 (2006.01)
Patent
CA 2225670
The present invention relates to a wet-processing method which comprises at least a preparing-step of a slurry of combustion ashes of mixing combustion ashes and water, a double decomposition step for ammonium sulfate, a recovering-step of free ammonia from a gypsum slurry containing free ammonia produced in the double decomposition step and a gypsum separation step successively, which is excellent in an ammonia stripping efficiency from the gypsum slurry in the ammonia recovery step and in which the clogging in a stripping device is suppressed, as well as a method of utilizing ammonia components with an industrial advantage.
Akahoshi Toshiaki
Iijima Masami
Inoue Aritoshi
Sakuma Akira
Goudreau Gage Dubuc
Kashima-Kita Electric Power Corporation
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