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method for catalytic oxidation of calciumsulfit

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method for catalytic oxidation of calciumsulfit

申请(专利)号: SE19750001327

专利号: SE7501327L 主分类号: C01F11/46 申请权利人: FELS-WERKE

PEINE-SALZGITTER GMBH 公开国代码: SE 优先权国家: DE

摘 要:

The catalytic oxidations of CaSO3 with air or O2 is carried out hydrothermally or in a soln. of CaCl2 with pref. Fe(II) or (Fe(III) sulphates or sulphates of Co, Cu, Zn, Mn or Ce present at a temp. at which the

oxidn. prod. is CaSo4 semi-hydrate or the soluble anhydride. When Ce sulphates are used as catalysts, persulphate ions must also be present. The present is economical and is quicker than oxidation with air/O2 alone, and gives better yields than other catalytic methods. Dismutation into sulphur does not occur. 主权项:

申请日: 1975-02-06 公开公告日: 1975-08-11

分类号: C01F11/46 发明设计人: KLAUS G

申请国代码: SE

优先权: 19740208 DE

2406054

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method for catalytic oxidation of calciumsulfit

methodforcatalyticoxidationofcalciumsulfit申请(专利)号:SE19750001327专利号:SE7501327L主分类号:C01F11/46申请权利人:FELS-WERKEPEINE-SALZGITTERGMBH公开国代码:SE优先权国家:DE摘要:<
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