3.
    发明专利
    未知

    公开(公告)号:BRPI0719676A2

    公开(公告)日:2013-12-24

    申请号:BRPI0719676

    申请日:2007-11-30

    Applicant: BASF SE

    Abstract: A process is proposed for reprocessing the exhaust gas from a plant for producing hydroxylamine or hydroxylammonium salts by catalytic reduction of nitrogen monoxide with hydrogen for the purpose of utilization of at least a part of the nitrogen monoxide and if appropriate hydrogen present in the exhaust gas for producing hydroxylamine or hydroxylammonium salts, which comprises, in a first separation stage, selectively separating off nitrogen monoxide from the exhaust gas of the plant for producing hydroxylamine or hydroxylammonium salts.

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