A PROCESS AND APPARATUS FOR PRODUCING AN AQUEOUS POLYMER SOLUTION
    1.
    发明申请
    A PROCESS AND APPARATUS FOR PRODUCING AN AQUEOUS POLYMER SOLUTION 审中-公开
    生产含水聚合物溶液的方法和设备

    公开(公告)号:WO2017186567A1

    公开(公告)日:2017-11-02

    申请号:PCT/EP2017/059392

    申请日:2017-04-20

    Applicant: BASF SE

    Abstract: Process and apparatus for producing an aqueous polymer solution comprising the steps of • (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer comprises at least 10% by weight active polymer; • (b) cutting the hydrated polymer by subjecting the hydrated polymerto at least one cutting stage comprising at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer, • (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution.

    Abstract translation: 用于生产聚合物水溶液的方法和设备包括以下步骤:(a)提供已经通过烯属不饱和单体的水溶液聚合制备的水合聚合物,所述水合聚合物包含至少10重量% 重量的活性聚合物; (b)通过使水合聚合物经受至少一个切割阶段来切割水合聚合物,所述至少一个切割阶段包含至少一个含水液体流,压力至少为150巴,以减小水合聚合物的尺寸;(c)将水合物 聚合物在含水液体中以获得聚合物水溶液。

    METHOD FOR PREPARING AN AQUEOUS POLYACRYLAMIDE SOLUTION
    6.
    发明申请
    METHOD FOR PREPARING AN AQUEOUS POLYACRYLAMIDE SOLUTION 审中-公开
    制备水性聚丙烯酰胺溶液的方法

    公开(公告)号:WO2017186698A1

    公开(公告)日:2017-11-02

    申请号:PCT/EP2017/059761

    申请日:2017-04-25

    Applicant: BASF SE

    Abstract: A method for preparing an aqueous polyacrylamide solution is disclosed. The method comprises: - hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution, - directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel, and - directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution, wherein the polyacrylamide gel is dissolved by means of water jet cutting.

    Abstract translation: 公开了制备聚丙烯酰胺水溶液的方法。 该方法包括: - 在能够将丙烯腈转化为丙烯酰胺的生物催化剂存在下水合丙烯腈以获得丙烯酰胺溶液; - 直接聚合丙烯酰胺溶液以获得聚丙烯酰胺凝胶;以及 - 通过以下步骤直接溶解聚丙烯酰胺凝胶: 加入水以获得聚丙烯酰胺水溶液,其中聚丙烯酰胺凝胶通过水射流切割而溶解。

    METHOD FOR PREPARING AN AQUEOUS POLYACRYLAMIDE SOLUTION
    7.
    发明申请
    METHOD FOR PREPARING AN AQUEOUS POLYACRYLAMIDE SOLUTION 审中-公开
    制备水性聚丙烯酰胺溶液的方法

    公开(公告)号:WO2017186685A1

    公开(公告)日:2017-11-02

    申请号:PCT/EP2017/059736

    申请日:2017-04-25

    Applicant: BASF SE

    Abstract: A method for preparing an aqueous polyacrylamide solution is disclosed. The method comprises: hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution, directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel, and directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution, wherein the polyacrylamide gel is dissolved by means of an mixer comprising a rotatable impeller and a cylindrical array of radially oriented blade members circumferentially surrounding the impeller with radial discharge orifices between adjacent blades.

    Abstract translation: 公开了制备聚丙烯酰胺水溶液的方法。 该方法包括:在能够将丙烯腈转化为丙烯酰胺的生物催化剂的存在下,在水中水合丙烯腈以获得丙烯酰胺溶液,直接聚合丙烯酰胺溶液以获得聚丙烯酰胺凝胶,并通过加入水直接溶解聚丙烯酰胺凝胶 从而获得聚丙烯酰胺水溶液,其中聚丙烯酰胺凝胶通过混合器溶解,所述混合器包括可旋转叶轮和径向定向叶片构件的圆柱形阵列,所述径向定向叶片构件周向地围绕叶轮,相邻叶片之间具有径向排放孔。

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