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公开(公告)号：BR7404850D0
公开(公告)日：1975-01-21
申请号：BR485074
申请日：1974-06-12
Applicant: HOECHST AG
Inventor： SCHIESSLER S , PLESSEN H , FISCHER E
Abstract: Contaminated sulfuric acid which may contain water, organic compounds and inorganic salts is converted to almost pure concentrated sulfuric acid by passing the acid through a Pauling plant and distilling the concentrated contaminated acid.
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