2.
    发明专利
    未知

    公开(公告)号:FR2751325A1

    公开(公告)日:1998-01-23

    申请号:FR9709154

    申请日:1997-07-18

    Applicant: DEGUSSA

    Abstract: Malonic acid or a salt of the same is obtained at high yield according to the invention through the catalytic oxidation with oxygen or an O2-containing gas of 3-hydroxy propionaldehyde or 3-hydroxy propionic acid in the aqueous phase. The conversion takes place in the presence of at least 10 percent by weight, relative to the C3 building block used, of a precious metal from the platinum group. Pd and Pt supported catalysts are preferred.

    3.
    发明专利
    未知

    公开(公告)号:FR2751325B1

    公开(公告)日:1999-11-12

    申请号:FR9709154

    申请日:1997-07-18

    Applicant: DEGUSSA

    Abstract: Malonic acid or a salt of the same is obtained at high yield according to the invention through the catalytic oxidation with oxygen or an O2-containing gas of 3-hydroxy propionaldehyde or 3-hydroxy propionic acid in the aqueous phase. The conversion takes place in the presence of at least 10 percent by weight, relative to the C3 building block used, of a precious metal from the platinum group. Pd and Pt supported catalysts are preferred.

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