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公开(公告)号：US5282680A
公开(公告)日：1994-02-01
申请号：US63604
申请日：1993-05-19
CPC分类号： B01F5/16 , B01J19/2415 , B01J19/243 , B01J2219/00094 , B01J2219/00162 , B01J2219/00164 , B01J2219/00182
摘要： An apparatus for continuous polymerization of vinyl chloride or a vinyl chloride-based monomeric mixture, comprising a pre-mixer 1 for preparing an aqueous suspension of the vinyl chloride or vinyl chloride-based monomeric mixture, and a polymer slurry tank 5 connected to the pre-mixer 1 through a polymerization passage comprising a piping 3, wherein a pump comprising a conical hub and an impeller mounted thereon comprised of a single spiral blade is used for drawing out the aqueous suspension from the pre-mixer into the polymerization passage and for discharging a polymer slurry formed in the passage into the slurry tank, and the polymerization passage has a length sufficient for permitting the vinyl chloride or vinyl chloride-based monomeric mixture contained in the aqueous suspension flowing through the passage to be polymerized to a predetermined extent while passing through the passage. The use of the pump having the structure as above ensures a marked suppression of polymer scale deposition in the pump, heat exchanger and pipings, and makes it possible to produce a resin with few fish-eyes. The apparatus is of extremely high industrial value for carrying out continuous polymerization.
摘要翻译： 一种用于氯乙烯或氯乙烯基单体混合物的连续聚合的装置，包括用于制备氯乙烯或氯乙烯基单体混合物的水悬浮液的预混合器1和连接到前述聚合物浆料罐5的聚合物浆料罐5。 混合器1通过包括管道3的聚合通道，其中包括圆锥形轮毂和安装在其上的叶轮由包括单个螺旋叶片的泵用于将预混合器中的水悬浮液抽出到聚合通道中并用于排出 聚合物淤浆形成在通入浆料罐的通道中，并且聚合通道的长度足以允许流过通道的含水悬浮液中所含的氯乙烯或氯乙烯类单体混合物在通过时聚合至预定程度 通过通道。 具有上述结构的泵的使用确保了泵，热交换器和管道中的聚合物垢沉积的显着抑制，并且使得可以生产几乎没有鱼眼的树脂。 该设备具有非常高的工业价值用于进行连续聚合。
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公开(公告)号：US5444130A
公开(公告)日：1995-08-22
申请号：US63605
申请日：1993-05-19
申请人： Shuji Ohnishi , Tadashi Amano
发明人： Shuji Ohnishi , Tadashi Amano
CPC分类号： B01J19/02 , B01J19/002 , C08F14/06 , B01J2219/00252
摘要： An apparatus for producing a vinyl chloride-based polymer which comprises a polymerization vessel for carrying out suspension polymerization of a monomeric material containing at least vinyl chloride dispersed in an aqueous suspension, and a circulating passage extended from said polymerization vessel and through a heat exchanger back to said polymerization vessel for circulating a polymerization reaction mixture, wherein the polymerization reaction mixture returning from said circulating passage into said polymerization vessel is sprayed inside the polymerization vessel so that the inside wall portion of said polymerization vessel in a gas-phase zone is entirely wetted with the polymerization reaction mixture. Because the inside wall of the polymerization vessel in an area ranging from a gas-phase zone to a gas-liquid interface portion is constantly kept wetted with the polymerization reaction mixture (aqueous suspension) returning into the polymerization vessel, the problems of stagnation of the polymerization reaction mixture on the inside wall and deposition of polymer slurry on the inside wall can be obviated effectively. As a result, polymer scale deposition on the inside wall of the polymerization vessel in the area ranging from the gas-phase zone to the gas-liquid interface portion can be effectively prevented.
摘要翻译： 一种氯乙烯系聚合物的制造装置，其特征在于，包括聚合容器，其用于进行悬浮聚合，所述聚合容器至少包含分散在水悬浮液中的氯乙烯的单体材料，以及从所述聚合容器延伸并通过热交换器的循环通道 向所述聚合容器循环聚合反应混合物，其中将从所述循环通道返回到聚合容器中的聚合反应混合物喷射在聚合容器内，使得在气相区中的聚合容器的内壁部分被完全润湿 与聚合反应混合物。 由于聚合容器的从气相区域到气 - 液界面部分的区域的内壁不断地被聚合反应混合物（水悬浮液）返回到聚合容器中而被润湿，所以存在停滞的问题 内壁上的聚合反应混合物和聚合物浆料在内壁上的沉积可以有效地消除。 结果，可以有效地防止从气相区域到气 - 液界面部分的范围内的聚合容器的内壁上的聚合物垢沉积。
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公开(公告)号：US5420215A
公开(公告)日：1995-05-30
申请号：US174522
申请日：1993-12-28
申请人： Tadashi Amano , Shuji Ohnishi
发明人： Tadashi Amano , Shuji Ohnishi
IPC分类号： C08F2/00 , B01J19/00 , B01J19/18 , C08F2/01 , C08F2/18 , C08F14/00 , C08F14/06 , F04D1/04 , F04D29/18
CPC分类号： F04D29/183 , B01J19/0006 , B01J19/1881 , C08F14/06 , F04D1/04
摘要： A process for producing a vinyl chloride-based polymer by suspension polymerizing vinyl chloride monomer or the like while circulating a reaction mixture in a polymerization vessel by a circulating pump through a circulation line led out from the polymerization vessel to extend through a heat exchanger back to the vessel, wherein the pump comprises a conical hub and an impeller comprised of a spirally shaped single blade provided on the hub, and, during polymerization, the stirring energy (A) applied to the reaction mixture by the stirrer in the polymerization vessel and the circulating energy (B) exerted to the reaction mixture by the circulating pump in the circulation line are controlled so as to satisfy the relationships(A)+(B)=from 1.5 to 4.0 kW/t (1)and(B)/[(A)+(B)]=from 0.1 to 0.6 (2)Polymer scale is prevented from being deposited on inner surfaces of the heat exchanger, circulation piping, circulating pump or the like.
摘要翻译： 一种氯乙烯系聚合物的制造方法，其通过将聚合容器内的反应混合物循环通过循环泵通过从聚合容器引出的循环管道循环而聚合氯乙烯单体等，延伸通过热交换器回到 所述容器，其中所述泵包括圆锥形毂和由设置在所述毂上的螺旋形单个叶片组成的叶轮，并且在聚合期间，通过所述搅拌器在所述聚合容器中施加到所述反应混合物的搅拌能量（A） 控制循环管线中循环泵对反应混合物的循环能（B），以满足关系式（A）+（B）= 1.5〜4.0kW / t（1）和（B）/ [ （A）+（B）] = 0.1〜0.6（2）防止聚合物垢沉积在热交换器，循环管道，循环泵等的内表面上。
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4.发明授权
公开(公告)号：US5612437A
公开(公告)日：1997-03-18
申请号：US364449
申请日：1994-12-27
申请人： Takuya Ueda , Kikuo Nakajima , Yoichi Tanifuji , Tadashi Amano , Shuji Ohnishi
发明人： Takuya Ueda , Kikuo Nakajima , Yoichi Tanifuji , Tadashi Amano , Shuji Ohnishi
CPC分类号： B01J19/18 , B01J19/0013 , C08F14/06 , B01J2219/00081 , B01J2219/185 , B01J2219/1943
摘要： A vinyl chloride polymer is produced by subjecting vinyl chloride or a monomer mixture made up mainly of vinyl chloride to suspension polymerization in an aqueous medium using a polymerization apparatus equipped with a polymerization vessel. The polymerization apparatus used comprises a polymerization vessel (1) having a substantially cylindrical inner space, said inner space of said polymerization vessel being provided with a plurality of baffles (5) comprising vertically extending pipes, and serpentine pipelines (6) each of which is placed between two adjacent baffles and is extended in a serpentine fashion along the polymerization vessel inner wall from the lower part to the upper part of the polymerization vessel, and a refrigerant being passed through said baffles and said serpentine pipelines. High-cooling performance can be obtained, a high-speed reaction in a large-sized polymerization vessel becomes possible, and a stable polymerization reaction can be carried out. A high-quality and uniform polymer that has few fish eyes and has a high bulk specific gravity can be obtained.
摘要翻译： 使用装有聚合容器的聚合装置，将氯乙烯或主要由氯乙烯组成的单体混合物在含水介质中进行悬浮聚合来制备氯乙烯聚合物。 使用的聚合装置包括具有基本上圆柱形的内部空间的聚合容器（1），所述聚合容器的内部空间设置有多个包括垂直延伸的管道的挡板（5）和蛇形管道（6） 放置在两个相邻的挡板之间，并且沿着聚合容器内壁从聚合容器的下部延伸到上部延伸，并且制冷剂通过所述挡板和所述蛇形管道。 可以获得高冷却性能，可以在大型聚合容器中进行高速反应，并且可以进行稳定的聚合反应。 可以获得鱼眼少且体积比重高的高质量且均匀的聚合物。
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公开(公告)号：US5449723A
公开(公告)日：1995-09-12
申请号：US126378
申请日：1993-09-24
申请人： Tadashi Amano , Shuji Ohnishi
发明人： Tadashi Amano , Shuji Ohnishi
CPC分类号： C08F2/002 , B01J19/002 , B01J19/1881 , B01J19/2435 , B01J19/2465 , B01J2219/00094 , B01J2219/00103 , B01J2219/00114 , B01J2219/00252
摘要： An improvement is proposed in the method for the preparation of a polyvinyl chloride resin by the suspension polymerization of the monomer in a polymerization reactor system comprising a reactor and an external heat exchanger connected to the reactor by a pipe line through a pumping means in order to supplement the deficiency in the cooling capacity of the jacket of the reactor and/or reflux condenser installed thereto when the capacity of the reactor is greatly increased. While such an external circulating circuit using a conventional pump suffers from a serious problem of polymer scale deposition on the inner walls of the circuit and downgrading of the quality of the resin product, these drawbacks can be dissolved by using a specific pump having an impellor in the form of a single spiral screw blade around a hub having a conical configuration to circulate the polymerization mixture through the heat exchanger for the removal of the heat of polymerization, which is started at or after the moment when the temperature of the polymerization mixture in the reactor reaches the predetermined polymerization temperature but before the conversion of the monomer to polymer exceeds 10%.
摘要翻译： 通过单体在包括反应器和外部热交换器的聚合反应器系统中的悬浮聚合的方法中提出了改进方案，该反应器和外部热交换器通过泵送装置通过管线连接到反应器，以便 补充了当反应器的容量大大增加时，安装在其上的反应器和/或回流冷凝器的夹套的冷却能力的不足。 虽然使用常规泵的这种外部循环回路存在聚合物垢沉积在电路内壁上并严重降低树脂产品质量的严重问题，但这些缺点可以通过使用具有叶轮的特定泵来溶解 围绕具有圆锥形构造的单螺旋螺旋叶片的形式，以使聚合混合物循环通过热交换器以消除聚合热，该聚合混合物在聚合混合物的温度 反应器达到预定的聚合温度，但在单体转化为聚合物之前超过10％。
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公开(公告)号：US5328666A
公开(公告)日：1994-07-12
申请号：US4567
申请日：1993-01-14
申请人： Tadashi Amano , Shuji Ohnishi
发明人： Tadashi Amano , Shuji Ohnishi
CPC分类号： B01J19/2465 , B01J19/002 , B01J19/24 , B01J19/2435
摘要： In a polymerizing apparatus which comprises a polymerization vessel and a circulating line comprising a heat exchanger installed outside said polymerization vessel and a circulating pipeline extending from said polymerization vessel and returning to said polymerization vessel through said heat exchanger, the improvement comprising a strainer installed in the course of said circulating pipeline. Since polymer scale and a polymer in the form of blocks formed in the circulating line can be trapped, the circulating pipeline and tubes of the heat exchanger can be prevented from being blocked up. Further, since they can be prevented from mixing with a reaction mixture in the polymerization vessel, when the obtained polymer is worked into a molded item such as a sheet, fish eyes can be prevented from increasing. Therefore, a polymer can be produced efficiently with high productivity.
摘要翻译： 在包括聚合容器和包括安装在所述聚合容器外部的热交换器的循环管线的循环管线和从所述聚合容器延伸并通过所述热交换器返回到所述聚合容器的循环管道的聚合装置中，改进包括安装在所述聚合容器中的过滤器 循环管道过程。 由于聚合物垢和在循环管线中形成的块状聚合物可以被捕获，所以可以防止热交换器的循环管道和管堵塞。 此外，由于可以防止它们与聚合容器中的反应混合物混合，所以当将所得的聚合物加工成片状的成型品时，可以防止鱼眼的增加。 因此，可以高效率地生产聚合物。
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公开(公告)号：US5750079A
公开(公告)日：1998-05-12
申请号：US758022
申请日：1996-11-27
申请人： Takuya Ueda , Kikuo Nakajima , Yoichi Tanifuji , Tadashi Amano , Shuji Ohnishi
发明人： Takuya Ueda , Kikuo Nakajima , Yoichi Tanifuji , Tadashi Amano , Shuji Ohnishi
CPC分类号： B01J19/18 , B01J19/0013 , C08F14/06 , B01J2219/00081 , B01J2219/185 , B01J2219/1943
摘要： A polymerization apparatus used, particularly, in suspension polymerization of vinyl chloride, comprising a polymerization vessel (1) having a substantially cylindrical inner space, said inner space of said polymerization vessel being provided with a plurality of baffles (5) comprising vertically extending pipes, and serpentine pipelines (6) each of which is placed between two adjacent baffles and is extended in a serpentine fashion along the polymerization vessel inner wall from the lower part to the upper part of the polymerization vessel, and a refrigerant being passed through said baffles and said serpentine pipelines. High-cooling performance can be obtained, a high-speed reaction in a large-sized polymerization vessel becomes possible, and a stable polymerization reaction can be carried out. A high-quality and uniform polymer that has few fish eyes and has a high bulk specific gravity can be obtained.
摘要翻译： 一种聚合装置，特别是在氯乙烯的悬浮聚合中使用的聚合装置，包括具有基本上圆柱形的内部空间的聚合容器（1），所述聚合容器的所述内部空间设置有多个包括垂直延伸的管道的挡板（5） 和蛇形管道（6），每个管道布置在两个相邻的挡板之间，并且沿着聚合容器内壁从聚合容器的下部延伸到上部，并且制冷剂通过所述挡板和 说蛇形管道。 可以获得高冷却性能，可以在大型聚合容器中进行高速反应，并且可以进行稳定的聚合反应。 可以获得鱼眼少且体积比重高的高质量且均匀的聚合物。
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8.发明授权Polymerization process with recycle line containing screen with rodlike projection 失效含有棒状投影的含有筛网的再生线的聚合过程
公开(公告)号：US5444131A
公开(公告)日：1995-08-22
申请号：US233822
申请日：1994-04-26
申请人： Shuji Ohnishi , Yoichi Tanifuji , Tadashi Amano
发明人： Shuji Ohnishi , Yoichi Tanifuji , Tadashi Amano
CPC分类号： B01J19/2465 , B01D29/03 , B01J19/002 , B01J8/006 , C08F14/06 , B01D2201/184 , B01J2219/00094 , B01J2219/00103 , B01J2219/00114 , B01J2219/00252
摘要： A polymerization apparatus that is equipped with a circulation path for the flow of a reaction mixture that comprises a polymerization vessel, a heat exchanger arranged outside said polymerization vessel, and a pipeline that is extended from said polymerization vessel, is returned to said polymerization vessel through said heat exchanger, and is provided with a strainer in the course thereof, wherein the surface of a filter provided in said strainer that is located upstream has rodlike projections, and a method of producing a polymer of a monomer having an ethylenically unsaturated double bond by using said apparatus. Scale and polymers in the form of blocks can be prevented from mixing into the reaction mixture. Therefore, where the obtained sheet is molded into a sheet or the like, fish eyes can be reduced and even if the polymerization is repeated, clogging of the tubes of the heat exchanger and dropping in the flow velocity of the reaction mixture can be prevented.
摘要翻译： 配备有用于使包含聚合容器，设置在聚合容器外部的热交换器和从所述聚合容器延伸的管道的反应混合物流动的循环路径的聚合装置返回到所述聚合容器，通过 所述热交换器在其过程中设置有过滤器，其中设置在位于上游的所述过滤器中的过滤器的表面具有棒状突起，以及通过以下步骤制造具有烯属不饱和双键的单体的聚合物的方法： 使用所述装置。 可以防止垢和块状聚合物混入反应混合物中。 因此，在得到的片材成型为片材等的情况下，鱼眼可以减少，即使重复聚合，也可以防止热交换器的管堵塞和反应混合物的流速下降。
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公开(公告)号：US5310832A
公开(公告)日：1994-05-10
申请号：US063610
申请日：1993-05-19
申请人： Shuji Ohnishi , Tadashi Amano
发明人： Shuji Ohnishi , Tadashi Amano
CPC分类号： C08F14/06
摘要： A process for producing a vinyl chloride-based polymer in which an aqueous suspension of a vinyl chloride-based monomeric material placed in a polymerization vessel equipped with an agitating element is subjected to suspension polymerization by introducing a polymerization initiator to the aqueous suspension at a position located inside the diameter of the agitating element being rotated. By this process it is possible to prevent totally the deposition of polymer scale on the inside wall of the polymerization vessel, particularly in the vicinity of a gas-liquid interface. Therefore, troubles arising from polymer scale formation and labor needed for removing such polymer scale are obviated, and a vinyl chloride-based polymer of high quality can be produced efficiently.
摘要翻译： 一种氯乙烯类聚合物的制造方法，其中将放置在装有搅拌元件的聚合容器中的氯乙烯系单体材料的水性悬浮液通过在水悬浮液中的位置引入聚合引发剂进行悬浮聚合 位于旋转的搅拌元件的直径内。 通过该处理，可以完全防止聚合容器的内壁上的聚合物垢的沉积，特别是在气 - 液界面附近。 因此，消除了由聚合物垢形成产生的麻烦和去除这种聚合物垢所需的劳力，可有效地生产高质量的氯乙烯类聚合物。
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公开(公告)号：US5357011A
公开(公告)日：1994-10-18
申请号：US159248
申请日：1993-11-30
申请人： Shuji Ohnishi , Tadashi Amano
发明人： Shuji Ohnishi , Tadashi Amano
CPC分类号： C08F14/06
摘要： A process for producing a vinyl chloride-based polymer, which comprises suspension polymerizing vinyl chloride monomer or a vinyl chloride-containing monomeric mixture in an aqueous medium in the presence of an oil-soluble polymerization initiator, wherein the initiator comprises (A) at least one compound having a 10-hour half-life temperature, at a concentration of 0.1 mol/l in benzene, of not lower than 35.degree. C., and (B) at least one compound having a 10-hour half-life temperature, at a concentration of 0.1 mol/l in benzene, of lower than 35.degree. C., with the amount of the initiator (B) being from 0.01 to 0.07% by weight based on the monomer or monomeric mixture and being from 10 to 30% by weight based on the total amount of the initiators (A) and (B). The process makes it possible to shorten easily the time required for raising temperature, and to produce vinyl chloride-based polymers which have a good particle size distribution and which have few fish eyes when formed into sheets or the like.
摘要翻译： 一种氯乙烯类聚合物的制造方法，其特征在于，在油溶性聚合引发剂的存在下，在含水介质中使氯乙烯单体或含氯乙烯单体混合物悬浮聚合，其中，所述引发剂至少包含（A） 一种化合物，其在苯中的浓度为0.1mol / l的半衰期为10小时，不低于35℃，和（B）至少一种具有10小时半衰期的化合物， 在苯中浓度为0.1mol / l，低于35℃，引发剂（B）的量基于单体或单体混合物为0.01至0.07重量％，为10至30重量％ （A）和（B）的总量。 该方法可以容易地缩短提高温度所需的时间，并且可以制备具有良好粒度分布且在形成片状等时几乎没有鱼眼的氯乙烯基聚合物。
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