10.
    发明专利
    未知

    公开(公告)号:BE793657A

    公开(公告)日:1973-07-04

    申请号:BE793657D

    Abstract: 1391859 Unsaturated aliphatic acids STANDARD OIL CO 28 Dec 1972 [22 Feb 1972] 59764/72 Heading C2C [Also in Division Bl] Unsaturated aliphatic acids are made by the vapour phase oxidation of the corresponding unsaturated aldehydes with O 2 in the presence of a catalyst containing Sb a Sn b W c V d Mo e O x ; wherein a=0-6; b=0À1-12; c=0À1-6; d= 0À5-12; e=8-16 and x is as required by the valence of the other elements, and optionally one or more of Fe, Ni, Co, Zn, Mn, Mg, Cu and/or a support. Examples describe the preparation of acrylic acid from acrolein.

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