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1. 发明申请

WO2015014825A1 REVERSE-PHASE POLYMERISATION PROCESS 审中-公开
标题翻译：反相聚合方法
公开(公告)号：WO2015014825A1
公开(公告)日：2015-02-05
申请号：PCT/EP2014/066252
申请日：2014-07-29
申请人： BASF SE
发明人： HESSE, Pascal , JELICIC, Aleksandra , FONSECA ZEPEDA, Gabriela Eugenia , HASCHICK, Robert , KEELAPANDAL RAMAMOORTHY, Shankara Narayanan , NAYLOR, Gareth Ian , BARRATT, John Scott , SOETJE, Oliver , LIEVRE, Marcel , RAINAU, Florian , LEBKÜCHER, Mark
IPC分类号： C08F2/32 , C08F20/56
CPC分类号： C08F2/32 , B01J19/10 , B01J2219/0888 , B01J2219/24 , C08F2/01 , C08F220/06 , C08F220/20 , C08F220/56 , C08F226/10 , C08F2220/382 , C08F2220/385 , C08F220/34
摘要： 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 initiating polymerisation of the aqueous monomer beads to form polymerising beads, wherein the polymerising beads form 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 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. Furthermore, the invention also relates to polymer beads having a weight mean particle size in the range of 0.05 to 5 mm which are held in a container in an amount of at least 300 kg having a standard deviation of particle size less than 20%. In addition, the invention also provides polymer beads having a weight mean particle size in the range 0.05 to 5 mm having a standard deviation of particle size less than 20% and having an amount of residual acrylamide of less than 500 ppm.
摘要翻译：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，并聚合单体或单体共混物，以形成聚合物珠粒，水性液体和回收的聚合物珠粒，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引发单体珠水聚合形成聚合珠，其中聚合珠形成聚合物珠，当它们到达聚合物珠粒放电po 在聚合物珠粒排出点处从容器中除去聚合物小珠在非水性液体中的悬浮液，并从悬浮液中回收水溶性或水可溶胀的聚合物珠，其中单体或单体混合物和/或孔被振动，使得乘以重量平均液滴直径的频率在150和800mm / s之间。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。此外，本发明还涉及重量平均粒径在0.05至5mm范围内的聚合物珠，其以至少300kg的量保持在容器中，其具有小于20％的粒度的标准偏差。此外，本发明还提供了重均粒径在0.05-5mm范围内的聚合物珠，其粒径的标准偏差小于20％，残留丙烯酰胺的量小于500ppm。

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