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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
Inventor： JECK, Sandra , SOETJE, Oliver , BRINGMANN, Tobias , FONSECA ZEPEDA, Gabriela Eugenia , MECKELNBURG, Dirk , LOESCH, Dennis , LANGLOTZ, Bjoern , BARRATT, John , EL-TOUFAILI, Faissal-Ali , SCHUBE, Bernd , OSTERMAYR, Markus , SPRAFKE, Hazel
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。
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公开(公告)号：WO2015014826A1
公开(公告)日：2015-02-05
申请号：PCT/EP2014/066255
申请日：2014-07-29
Applicant: BASF SE
Inventor： HASCHICK, Robert , JELICIC, Aleksandra , BARRATT, John, Scott , HESSE, Pascal , SOETJE, Oliver , FONSECA ZEPEDA, Gabriela, Eugenia , KEELAPANDAL RAMAMOORTHY, Shankara Narayanan , LANGLOTZ, Björn
CPC classification number: C08F220/56 , B01J19/123 , B01J19/24 , B01J2219/0869 , B01J2219/1203 , B01J2219/24 , C08F2/32 , C08F220/06 , C08F220/20 , C08F226/10 , C08F2220/382 , C08F2220/385 , C08F220/34
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises, providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point subjecting the aqueous monomer beads to polymerisation conditions to initiate polymerisation to form polymerising beads, wherein the polymerising beads have formed polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the polymer bead discharge point and recovering water soluble or water swellable polymer beads from the suspension. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtainable by the process or employing the apparatus.
Abstract translation: 一种用于制备聚合物珠粒的反相悬浮聚合方法，包括形成包含水溶性烯属不饱和单体或单体共混物的水溶液的含水单体珠粒，并将单体或单体共混物聚合以形成聚合物珠粒，同时悬浮在非水性 液体和回收的聚合物珠，其中该方法包括在容器（1）中提供非水性液体的体积（2），其中非水性液体的体积在至少一个聚合物珠粒排出点（3） 和至少一个单体进料点（4），通过孔（5）将含水单体或单体共混物进料到非水性液体中或其上，以形成含水单体珠，使单体水单体流向聚合物珠粒 放电点使含水单体珠粒聚合条件以引发聚合以形成聚合珠粒，其中聚合珠粒已形成聚合物珠粒 当它们到达聚合物珠粒排放点时，在聚合物珠粒排出点处从容器中除去非水液体中的聚合物珠子的悬浮液并从悬浮液中回收水溶性或水可溶胀的聚合物珠粒。 本发明还涉及适用于进行反相悬浮聚合的装置和可通过该方法获得的聚合物珠粒，或采用该装置。
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公开(公告)号：WO2017076784A1
公开(公告)日：2017-05-11
申请号：PCT/EP2016/076185
申请日：2016-10-31
Applicant: BASF SE
Inventor： LANG, Ortmund , JELICIC, Aleksandra , SCHUSTER, Thomas , SOETJE, Oliver , JECK, Sandra , HASCHICK, Robert , BRINGMANN, Tobias
IPC: C08F2/32 , C08F220/56
CPC classification number: C08F2/32 , B01J4/002 , B01J19/123 , B01J19/242 , B01J19/243 , B01J2219/00094 , B01J2219/185 , B01J2219/1923 , B01J2219/1943 , C08F220/56 , C08F220/06
Abstract: The present invention relates to a reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads of an aqueous solution comprising water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend to form polymer beads while suspended in a nonaqueous liquid, recovering polymer beads, and then cleaning the non-aqueous liquid in which the process comprises providing the non-aqueous liquid in a vessel (1), forming a suspension of monomer beads from the aqueous monomer or monomer blend in the non-aqueous liquid, initiating polymerisation to form polymerising beads, removing a suspension of the polymer beads in non-aqueous liquid from the vessel and recovering, water soluble or water swellable polymer beads from the suspension, in which the non-aqueous liquid contains impurities which comprise particles, and then subjecting the non-aqueous liquid from the suspension to a cleaning stage, in which the cleaning stage provides a cleaned non-aqueous liquid suitable for use in a reverse-phase suspension polymerisation process, which cleaning stage comprises subjecting the non-aqueous liquid to a pre-heating step, passing the preheated non-aqueous liquid through a helical tube evaporator thereby forming a mixture of liquid and gas, releasing the resulting mixture of liquid and gas into a gas-liquid separator vessel, and subsequently forming a liquid stream containing solids and a cleaned non-aqueous liquid stream. The invention also relates to an apparatus suitable for carrying out the process of the invention and also to polymeric products obtainable by the process.
Abstract translation: 本发明涉及用于制造聚合物珠粒的反相悬浮聚合方法，其包括形成包含水溶性烯属不饱和单体或单体混合物的水溶液的含水单体珠粒，并使所述单体聚合或 在悬浮于非水液体中时形成聚合物珠粒，回收聚合物珠粒，然后清洁非水液体，其中该方法包括在容器（1）中提供非水液体，从而形成单体珠粒悬浮液 含水单体或单体在非水液体中混合，引发聚合形成聚合珠粒，从容器中除去聚合物珠粒在非水液体中的悬浮液，并从悬浮液中回收水溶性或水溶胀性聚合物珠粒， 其中非水液体含有包含颗粒的杂质，然后将悬浮液中的非水液体进行处理 清洁阶段，其中清洁阶段提供适用于反相悬浮聚合工艺的清洁的非水性液体，该清洁阶段包括使非水液体经受预热步骤，使预热的非水性液体通过， 将含水液体通过螺旋管式蒸发器从而形成液体和气体的混合物，将得到的液体和气体混合物释放到气液分离器容器中，随后形成含有固体和清洁的非水液体流的液体流。 本发明还涉及适用于实施本发明方法的设备，并且还涉及通过该方法可获得的聚合物产品。
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公开(公告)号：WO2015014824A1
公开(公告)日：2015-02-05
申请号：PCT/EP2014/066251
申请日：2014-07-29
Applicant: BASF SE
Inventor： BARRATT, John, Scott , JELICIC, Aleksandra , HESSE, Pascal , SOETJE, Oliver , HASCHICK, Robert , FONSECA ZEPEDA, Gabriela, Eugenia , KEELAPANDAL RAMAMOORTHY, Shankara, Narayanan , JECK, Sandra , KUHN, Jelan
CPC classification number: C08F265/04 , B01D29/00 , B01J19/24 , B01J2219/24 , C08F2/32 , C08F220/06 , C08F220/20 , C08F220/56 , C08F226/10 , C08F2220/382 , C08F2220/385 , C08J3/12 , C08J11/02 , C08J2351/00 , C08F220/34
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads of an aqueous solution comprising water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, recovering polymer beads, and then cleaning the non-aqueous liquid in which the process comprises providing the non-aqueous liquid in a vessel (1), forming a suspension of monomer beads from the aqueous monomer or monomer blend in the non-aqueous liquid, initiating polymerisation to form polymerising beads, removing a suspension of the polymer beads in non-aqueous liquid from the vessel and recovering, water soluble or water swellable polymer beads from the suspension, in which the non-aqueous liquid contains impurities which comprise particles, and then transferring the non-aqueous liquid from the suspension to a cleaning stage, in which the cleaning stage provides a cleaned non-aqueous liquid suitable for use in a reverse-phase suspension polymerisation process, which cleaning stage comprises removing particles from the non-aqueous liquid in at least one filtration step. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtainable by the process or employing the apparatus. The invention further relates to a cleaned non-aqueous liquid obtainable by the process.
Abstract translation: 一种用于制造聚合物珠粒的反相悬浮聚合方法，包括形成包含水溶性烯键式不饱和单体或单体共混物的水溶液的含水单体珠粒，并将单体或单体共混物聚合以形成聚合物珠粒，同时悬浮于非水性 液体，回收聚合物珠粒，然后清洗非水液体，其中该方法包括在容器（1）中提供非水性液体，从非水性单体或单体共混物形成单体珠粒悬浮液 液体，引发聚合以形成聚合珠，从容器中除去聚合物小珠在非水液体中的悬浮液，并从悬浮液中回收水溶性或水可溶胀的聚合物珠，其中非水性液体含有包含颗粒的杂质 ，然后将非水性液体从悬浮液转移到清洁阶段，其中清洗步骤 e提供适用于反相悬浮聚合方法的清洁的非水性液体，该清洗阶段包括在至少一个过滤步骤中从非水性液体中除去颗粒。 本发明还涉及适用于进行反相悬浮聚合的装置和可通过该方法获得的聚合物珠粒，或采用该装置。 本发明还涉及通过该方法可获得的清洁的非水性液体。
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公开(公告)号：WO2017017559A1
公开(公告)日：2017-02-02
申请号：PCT/IB2016/054284
申请日：2016-07-19
Applicant: BASF SE , BASF (CHINA) COMPANY LIMITED
Inventor： LANGE, Christiane , VALE, Hugo , HAEHNLE, Hans-Joachim , SOETJE, Oliver
CPC classification number: B01J19/245 , C08F2/01 , C08F26/02
Abstract: Provided is a process of producing polymers of a N-vinyl carboxamide comprising the steps of flowing a reaction mixture comprising an aqueous liquid containing at least one polymerisation initiator, N-vinyl carboxamide monomer or a monomer mixture which comprises N-vinyl carboxamide into a reactor system，polymerising the monomer or monomer mixture to produce the polymer of a N-vinyl carboxamide， in which the reactor system comprises a series of reactor units comprising a combination of at least one mixed flow reactor and at least one single pass tubular reactor，wherein i) the at least one mixed flow reactor comprises at least one vessel containing internal and/or external means of mixing; and ii) the at least one single pass tubular reactor comprises a tubular section disposed between two ends，at least one inlet and at least one outlet in which the reaction mixture flows through the single pass tubular reactor only once， wherein substantially none of the reaction mixture exits the single pass tubular reactor less than 0.5 of the mean residence time of the reaction mixture in a single pass tubular reactor. The polymers resulting therefrom may be hydrolysed to provide polymers containing vinyl amine units. Also provided are the apparatus suitable for producing said polymers.
Abstract translation: 本发明提供了一种制备N-乙烯基甲酰胺聚合物的方法，包括将含有至少一种聚合引发剂，N-乙烯基甲酰胺单体或包含N-乙烯基甲酰胺的单体混合物的含水液体的反应混合物流入反应器 系统，聚合单体或单体混合物以产生N-乙烯基甲酰胺的聚合物，其中反应器系统包含一系列包含至少一个混合流反应器和至少一个单程管式反应器的组合的反应器单元，其中 i）所述至少一个混合流动反应器包括至少一个含有内部和/或外部混合装置的容器; 和ii）所述至少一个单程管式反应器包括设置在两端之间的管状部分，至少一个入口和至少一个出口，其中反应混合物仅通过单通管式反应器流过一次，其中基本上没有一个反应 混合物离开单通管式反应器，其反应混合物在单程管式反应器中的平均停留时间小于0.5。 由此得到的聚合物可以被水解以提供含有乙烯基胺单元的聚合物。 还提供了适合于生产所述聚合物的装置。
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Patent Agency Ranking
公开(公告)号：WO2016120818A1
公开(公告)日：2016-08-04
申请号：PCT/IB2016/050428
申请日：2016-01-28
Applicant: BASF SE , BASF (CHINA) COMPANY LIMITED
Inventor： BARRATT, John , JELICIC, Aleksandra , HASCHICK, Robert , SOETJE, Oliver
CPC classification number: C08F2/32 , C08F20/56 , C08F220/56 , C08F220/34
Abstract: Transportation of Polymeric Bead Products A method of transportation of a polymer product from a first location to a second location in which the transportation comprises at least one of the group consisting of: (a) conveyance in a vehicle for at least 50 km; and/or (b) conveyance in at least one conduit in which the polymer product comprises water soluble or water swellable polymer beads, wherein the water soluble or water swellable polymer beads are obtainable by a process comprising a reverse-phase suspension polymerisation comprising forming aqueous monomer beads of an aqueous solution comprising water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend, to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non- aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point initiating polymerisation of the aqueous monomer beads to form polymerising beads, wherein the polymerising beads have formed polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the polymer bead discharge point and recovering, water soluble or water swellable polymer beads from the suspension, in which the aqueous monomer or monomer blend and/or the orifices is/are vibrated such that the frequency multiplied by the weight average droplet diameter is between 150 and 800 mm/s. The method enables polymer product transported to a second location to have a narrow particle size distribution and reduced fines or dust content.
Abstract translation: 聚合物珠产品的运输聚合物产品从第一位置运输到第二位置的方法，其中运输包括以下组中的至少一个：（a）在车辆中运输至少50公里; 和/或（b）至少一个导管中的输送，其中聚合物产物包含水溶性或水可溶胀聚合物珠，其中水溶性或水可溶胀聚合物珠可通过包含形成水溶性 包含水溶性烯属不饱和单体或单体共混物的水溶液的单体珠，并聚合单体或单体共混物，以形成聚合物珠，同时悬浮在非水性液体中，并回收聚合物珠，其中该方法包括提供 容器（1）非水液体的体积（2），其中非水性液体的体积在至少一个聚合物珠粒排放点（3）和至少一个单体进料点（4）之间延伸，进料含水单体或 通过孔（5）将单体共混物加入到非水液体中或在非水液体上形成含水单体珠，使含水单体珠流向聚合物珠粒排出物 Ge点引发含水单体珠的聚合以形成聚合珠，其中聚合珠当它们到达聚合物珠粒排放点时已经形成聚合物珠粒，在聚合物珠粒上从容器中除去聚合物珠粒在非水性液体中的悬浮液 排出点和从悬浮液中回收的水溶性或水可溶胀的聚合物珠粒，其中水性单体或单体混合物和/或孔口被振动，使得乘以重量平均液滴直径的频率在150和800mm之间 /秒。 该方法使得聚合物产物运输到第二位置具有窄的粒度分布和减少的细粉或粉尘含量。
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公开(公告)号：WO2017186697A1
公开(公告)日：2017-11-02
申请号：PCT/EP2017/059759
申请日：2017-04-25
Applicant: BASF SE
Inventor： SPRAFKE, Hazel Anne , EL-TOUFAILI, Faissal-Ali , LANGLOTZ, Bjoern , BARRATT, John , BRINGMANN, Tobias , FONSECA ZEPEDA, Gabriela Eugenia , JECK, Sandra , LOESCH, Dennis , MECKELNBURG, Dirk , OSTERMAYR, Markus , SCHUBE, Bernd , SOETJE, Oliver
IPC: C08F20/56
CPC classification number: C08F20/56 , C08F2/01 , C08F2/10 , C08F6/06 , C08F220/56 , C09K8/12 , C12P13/02 , C12Y402/01084 , C08F220/06
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.
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。
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8.发明申请
公开(公告)号：WO2016120817A1
公开(公告)日：2016-08-04
申请号：PCT/IB2016/050427
申请日：2016-01-28
Applicant: BASF SE , BASF (CHINA) COMPANY LIMITED
Inventor： BARRATT, John , JELICIC, Aleksandra , HASCHICK, Robert , SOETJE, Oliver
IPC: C08L33/00
Abstract: Preparation of Aqueous Solutions or Dispersions of Polymeric Bead Products A method of forming an aqueous solution or an aqueous dispersion of a polymer product com- prising providing the polymer product; feeding the polymer product to a polymer hydration make-up unit; combining the polymer product with an aqueous liquid; and hydrating the polymer product to form the aqueous solution or aqueous dispersion of the poly- mer product, in which the polymer product comprises water-soluble or water swellable polymer beads, wherein the water soluble or water swellable polymer beads are obtainable by a process com- prising a reverse-phase suspension polymerisation comprising forming aqueous monomer beads of an aqueous solution comprising water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend, to form polymer beads while sus- pended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non- aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point initiating polymerisation of the aqueous monomer beads to form polymerising beads, wherein the polymerising beads have formed polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the poly- mer bead discharge point and recovering, water soluble or water swellable polymer beads from the suspension, in which the aqueous monomer or monomer blend and/or the orifices is/are vibrated such that the frequency multiplied by the weight average droplet diameter is between 150 and 800 mm/s. The method enables aqueous solutions or aqueous dispersions of water soluble or water swellable polymer product to be made at a consistent concentration and for the so formed aqueous solutions or dispersions to be consistently dosed into systems to be treated.
Abstract translation: 聚合物珠产品的水溶液或分散体的制备形成聚合物产物的水溶液或水分散体的方法，包括提供聚合物产物; 将聚合物产物加入到聚合物水合补充单元中; 将聚合物产物与水性液体组合; 并且使聚合物产物水合以形成聚合物产物的水溶液或水分散体，其中聚合物产物包含水溶性或水可溶胀的聚合物珠，其中水溶性或水可溶胀的聚合物珠可通过工艺com - 提供反相悬浮聚合，包括形成包含水溶性烯属不饱和单体或单体共混物的水溶液的水性单体珠，并聚合单体或单体共混物，以形成聚合物珠，同时悬浮在非水性液体中， 和回收聚合物珠粒，其中该方法包括在容器（1）中提供非水液体体积（2），其中非水性液体的体积在至少一个聚合物珠粒排放点（3）和至少一个聚合物珠粒排出点 一个单体进料点（4），通过孔口（5）将含水单体或单体共混物进料到非水液体中或其上，以形成含水单体珠粒，允许 使含水单体珠流向聚合物珠粒排出点，引发含水单体珠的聚合以形成聚合珠，其中聚合珠在达到聚合物珠粒排出点时形成聚合物珠，除去聚合物珠的悬浮液 在聚合物珠粒排出点处的容器中的非水性液体和从悬浮液中回收水溶性或水可溶胀的聚合物珠粒，其中水性单体或单体混合物和/或孔口被振动，使得频率 乘以重量平均液滴直径在150和800mm / s之间。 该方法使水溶液或水溶胀性聚合物产物的水溶液或水分散体以一致的浓度制备，并且使得如此形成的水溶液或分散体一致地加入待处理的体系中。
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公开(公告)号：WO2014049513A1
公开(公告)日：2014-04-03
申请号：PCT/IB2013/058769
申请日：2013-09-23
Applicant: BASF SE , BASF (CHINA) COMPANY LIMITED
Inventor： KEELAPANDAL RAMAMOORTHY, Shankara Narayanan , SOETJE, Oliver , BARRATT, John Scott , FONSECA ZEPEDA, Gabriela Eugenia
CPC classification number: C08F222/38 , B01J19/245 , B01J2219/24 , C08F2/001 , C08F2/01 , C08F220/06 , C08F220/34 , C08F220/56 , C08F222/02 , C08F222/10 , C08F220/32 , C08F220/04
Abstract: A process for preparation of a polymer product comprising the steps of i)feeding an aqueous mixture comprising a monoethylenically unsaturated monomer or a mixture of monoethylenically unsaturated monomers into a first reactor device (2) through at least one inlet; ii)partially polymerising the monomer or monomers and transferring the polymerising monomer or mixture of monomers from the inlet to an outlet(3)of the first reactor device(2)to provide a partially polymerised product; iii)flowing the partially polymerised product out of the outlet(3), in which no more than 60% of the monomer or mixture of monomers has been polymerised in the partially polymerised product as it exits the outlet (3) of first reactor device(2), and transferring it to a further reactor device(5), in which the further reactor device (5) has an inlet and an outlet(6); iv)continuing the polymerisation in the further reactor device (5) and removing the polymer product from the outlet (6) of the further reactor device(5), characterised in that the first reactor device (2) comprises a positive displacement pump.
Abstract translation: 一种制备聚合物产品的方法，包括以下步骤：i）通过至少一个入口将包含单烯属不饱和单体或单烯属不饱和单体的混合物的含水混合物进料到第一反应器装置（2）中; ii）部分聚合单体或单体并将聚合单体或单体混合物从入口转移到第一反应器装置（2）的出口（3），以提供部分聚合的产物; iii）将部分聚合的产物流出出口（3），其中当部分聚合的产物离开第一反应器装置的出口（3）时，部分聚合的产物中不超过60％的单体或单体混合物聚合 2），并将其转移到另外的反应器装置（5）中，其中所述另外的反应器装置（5）具有入口和出口（6）; iv）继续在另外的反应器装置（5）中进行聚合并从另外的反应器装置（5）的出口（6）除去聚合物产物，其特征在于第一反应器装置（2）包括容积式泵。
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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
Inventor： SPRAFKE, Hazel Anne , EL-TOUFAILI, Faissal-Ali , LANGLOTZ, Bjoern , BARRATT, John , BRINGMANN, Tobias , FONSECA ZEPEDA, Gabriela Eugenia , JECK, Sandra , LOESCH, Dennis , MECKELNBURG, Dirk , OSTERMAYR, Markus , SCHUBE, Bernd , SOETJE, Oliver
IPC: C08F20/56
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。
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