8.
    发明专利
    未知

    公开(公告)号:DE2232352A1

    公开(公告)日:1974-01-17

    申请号:DE2232352

    申请日:1972-07-01

    Applicant: BASF AG

    Abstract: A process for the recovery of glyoxylic acid as a byproduct in the synthesis of glyoxal by elution of the ion exchanger used for purifying the glyoxal and crystallization of sodium glyoxylate at a pH of from 3 to 6 from the aqueous eluate.

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