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公开(公告)号:BE1011445A5
公开(公告)日:1999-09-07
申请号:BE9700595
申请日:1997-07-09
Applicant: DEGUSSA
Inventor: HAAS THOMAS , MEIER MARTIN , BROSSMER CHRISTOPH , ARNTZ DIETRICH , FREUND ANDREAS
IPC: C07C51/235 , C07C55/08
Abstract: L'acide malonique ou un de ses sels est produit en rendement élevé par oxydation catalytique de 3- hydroxypropionaldéhyde ou d'acide 3-hydroxypropionique en phase aqueuse avec de l'oxygène ou un gaz contenant de l'oxygène. La réaction se fait en présence d'au moins 10 % en poids de métal noble du groupe du platine par rapport au composant en C3 utilisé. On préfère les catalyseurs de support de Pd et de Pt.
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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
Inventor: HAAS THOMAS , MEIER MARTIN , BROSSMER CHRISTOPH , ARNTZ DIETRICH , FREUND ANDREAS
IPC: C07C51/235 , C07C55/08
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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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
Inventor: HAAS THOMAS , MEIER MARTIN , BROSSMER CHRISTOPH , ARNTZ DIETRICH , FREUND ANDREAS
IPC: C07C51/235 , C07C55/08
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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