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    • 4. 发明申请
    • METHOD FOR PREPARING AN ACRYLAMIDE SOLUTION HAVING A LOW ACRYLIC ACID CONCENTRATION
    • 制备具有低丙烯酸浓度的丙烯酰胺溶液的方法
    • WO2016050819A1
    • 2016-04-07
    • PCT/EP2015/072509
    • 2015-09-30
    • BASF SE
    • BRAUN, MichaelDAEUWEL, JuergenFELGENHAUER, KatjaOEDMAN, PeterBALDENIUS, Kai-UweFREYER, StephanBUDDE, MichaelKLEINER, Matthias
    • C12P13/02
    • C12P13/02
    • The present invention relates to methods for preparing an aqueous acrylamide solution having a low acrylic acid concentration. In addition, the present invention relates to methods for reducing the acrylic acid concentration of an aqueous acrylamide solution. The methods involve a bioconversion of acrylonitrile to acrylamide in the presence of a biocatalyst. In these methods a biocatalyst is employed which is contacted with urea. Also provided is an aqueous acrylamide solution which is obtained by the methods of the present invention. Furthermore, the present invention is related to an acrylamide homopolymer or copolymer obtained by polymerizing the acrylamide of the aqueous solution. The present invention also relates to the use of urea in the preparation of an aqueous acrylamide solution by a bio-based process where acrylonitrile is converted to acrylamide using a biocatalyst.
    • 本发明涉及制备丙烯酸浓度低的丙烯酰胺水溶液的方法。 此外,本发明涉及降低丙烯酰胺水溶液的丙烯酸浓度的方法。 该方法涉及在生物催化剂存在下将丙烯腈生物转化为丙烯酰胺。 在这些方法中,使用与尿素接触的生物催化剂。 还提供了通过本发明的方法获得的丙烯酰胺水溶液。 此外,本发明涉及通过聚合水溶液的丙烯酰胺而获得的丙烯酰胺均聚物或共聚物。 本发明还涉及尿素在通过基于生物的方法制备丙烯酰胺水溶液中的用途,其中使用生物催化剂将丙烯腈转化为丙烯酰胺。