利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

44 条记录 (耗时 0.031 秒)

    PRODUCTION OF LACTIC ACID BY WAY OF FERMENTATION AND EXTRACTION OF AMINES
    8.
    发明申请
    PRODUCTION OF LACTIC ACID BY WAY OF FERMENTATION AND EXTRACTION OF AMINES 审中-公开
    通过发酵和提取木材的方式生产乳酸

    公开(公告)号：US20100273224A1

    公开(公告)日：2010-10-28

    申请号：US12733849

    申请日：2008-09-24

    申请人： Schulze Joachim ,  Peter Wasserscheid ,  Andreas Boesmann ,  Wolfgang Tietz

    发明人： Schulze Joachim ,  Peter Wasserscheid ,  Andreas Boesmann ,  Wolfgang Tietz

    IPC分类号： C12P7/56 ,  C12M1/00

    CPC分类号： C12P7/56 ,  C12P7/625

    摘要： The invention relates to a process for the production and isolation of lactic acid which is produced by way of fermentation of a carbohydrate-bearing feedstock and the addition of ammonia. The lactic acid is released from the ammonium salt of the lactate by adding a mineral acid and the lactic acid isolation takes place by extraction with the aid of an alkylated amine. The extraction is preferably operated at a pH value of 4.0 to 2.0, thereby obtaining a multi-phase mixture which is split up. The phase thus obtained with the lactate salt of amine subsequently undergoes distillation, so that lactic acid is obtained as pure product or the phase with the lactate salt of amine are thermally decomposed, thereby producing an oligolactide that is distillable and thus yields a pure dilactide. The invention also encompasses a device suitable for the performance of the inventive process.

    摘要翻译： 本发明涉及生产和分离乳酸的方法，其通过含碳水化合物原料的发酵和氨的加入而生产。 通过加入无机酸将乳酸从乳酸铵盐中释放，并通过烷基化胺的萃取进行乳酸分离。 优选在4.0〜2.0的pH值下进行萃取，得到分离的多相混合物。 随后用胺的乳酸盐获得的相随后进行蒸馏，得到作为纯产物的乳酸或与胺的乳酸盐的相热分解，从而制备可馏出的低聚乳糖，从而得到纯的二酰胺。 本发明还包括适于实施本发明方法的装置。