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公开(公告)号：DE3925424A1
公开(公告)日：1991-02-07
申请号：DE3925424
申请日：1989-08-01
Applicant: BASF AG
Inventor： LEUTNER BERND DR , HOPPE KLAUS-DIETER DR , BEVER PAUL DR , KRAUME MATTHIAS DR
IPC: B01D53/50
Abstract: To reduce the oxidation rates of sulphite/bisulphite-containing solutions in gas-liquid scrubbers for SO2 separation from gases, antioxidants are added to the solutions in an amount of 0.01 to 20 mmol per hour and per square metre of mass transfer area. These antioxidants may be polyaminoaromatics and/or polyhydroxyaromatics and/or (poly)amino(poly)hydroxyaromatics, ascorbic acid and/or dehydroascorbic acid.
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