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    25.
    发明专利
    未知

    公开(公告)号：DK1833308T3

    公开(公告)日：2009-10-19

    申请号：DK05818009

    申请日：2005-11-29

    Applicant: BASF SE

    Inventor： KARL JOERN ,  DIEBOLD GERD ,  ROESCH MARKUS ,  OBERFRANK UWE

    IPC: A23K1/16 ,  A23L1/30 ,  A23L33/15 ,  A61K31/19

    Abstract: The aim of the invention is to identify and provide a substance that influences the protein concentration of animal organisms as well as to provide preparations based on said substance for use in food for animals and humans. Said aim is achieved by using tartronic acid or the derivatives thereof. The invention thus relates to the use of tartronic acid or the derivatives thereof for producing preparations that are suitable for increasing the protein concentration of animal organisms. Also disclosed is the use of preparations containing tartronic acid or the derivatives thereof in animal fodder or food for humans.

    30.
    发明专利
    未知

    公开(公告)号：AT471306T

    公开(公告)日：2010-07-15

    申请号：AT03757050

    申请日：2003-06-10

    Applicant: BASF SE

    Inventor： HESSE MICHAEL ,  SCHLITTER STEPHAN ,  BORCHERT HOLGER ,  SCHUBERT MARKUS ,  ROESCH MARKUS ,  BOTTKE NILS ,  FISCHER ROLF-HARTMUTH ,  WECK ALEXANDER ,  WINDECKER GUNTHER ,  HEYDRICH GUNNAR

    IPC: C07C29/149 ,  C07B61/00 ,  C07C31/20

    Abstract: The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C 4 -dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C 4 -dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 10 to 100 bar into a first reactor or into a first reaction zone of a reactor and catalytically hydrogenating it in the gas phase to a product which contains mainly optionally alkyl-substituted gamma-butyrolactone; b) introducing the product stream obtained in this way into a second reactor or into a second reaction zone of a reactor at a temperature of from 140° C. to 260° C. and catalytically hydrogenating it in the gas phase to optionally alkyl-substituted 1,4-butanediol; steps a) and b) being carried out at the same pressure; c) removing the desired product from intermediates, by-products and any unconverted reactants; d) optionally recycling unconverted intermediates into one or both hydrogenation stages, said hydrogenation stages each using a catalyst which comprises =5% by weight, preferably from 5 to 95% by weight, in particular from 20 to 90% by weight, of an oxidic support, and the product mixture removed from the first hydrogenation stage being introduced without further purification into the second hydrogenation stage.

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