FIELD: scrubbing of waste industrial gases against $$$ and $$$. SUBSTANCE: $$$ and $$$ are absorbed by aqueous solution which comprises phosphates and thiosulfates of ammonium together with homogeneous catalyst. The process is followed by regeneration of the solution with the help of gas comprising hydrogen sulfide, the process takes place at 20-60 C at pH 3-5, ratio of $$$ and summary amount of $$$ and $$$ being 1.0-2.0. EFFECT: improved efficiency of the method. 2 cl, 1 dwg, 3 tbl
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Authors
Dates
1997-04-27—Published
1993-12-28—Filed