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14 条记录 (耗时 0.033 秒)

    Continuous hydrolysis of organochlorosilanes
    2.
    发明授权
    Continuous hydrolysis of organochlorosilanes 失效
    连续水解有机氯硅烷

    公开(公告)号：US06225490B1

    公开(公告)日：2001-05-01

    申请号：US09084786

    申请日：1998-05-27

    申请人： Hiroshi Nakayama ,  Naoyuki Ida ,  Hiroyuki Kobayashi ,  Yukinori Satoh ,  Yoshihiro Shirota ,  Masaaki Furuya

    发明人： Hiroshi Nakayama ,  Naoyuki Ida ,  Hiroyuki Kobayashi ,  Yukinori Satoh ,  Yoshihiro Shirota ,  Masaaki Furuya

    IPC分类号： C07F704

    CPC分类号： C08G77/06

    摘要： For the continuous hydrolysis of organochlorosilane, a reaction system comprising at least three stages of hydrolysis is used. Each stage includes a reactor and a phase separator wherein hydrolysis is effected to form a hydrolysis mixture which is separated into a hydrolyzate and a hydrogen chloride-containing aqueous medium. The separated aqueous medium is circulated to the reactor. The hydrolyzate is conveyed to the reactor of the subsequent stage. The organochlorosilane is fed into the first stage reactor, the aqueous medium containing an amount of water corresponding to the consumption in one stage is fed into one stage reactor from the subsequent stage, and an amount of water corresponding to the consumption in the overall reaction system is fed in the last stage. Then the entire amount of hydrogen chloride generated in multiple stages of hydrolysis is recovered as anhydrous hydrogen chloride from the first stage. The entire amount of the aqueous media separated in the phase separators is retained in the reaction system.

    摘要翻译： 对于有机氯硅烷的连续水解，使用包含至少三个水解阶段的反应体系。 每个阶段包括反应器和相分离器，其中进行水解以形成分离成水解产物和含氯化氢的水性介质的水解混合物。 将分离的水性介质循环至反应器。 水解产物被输送到后续阶段的反应器。 将有机氯硅烷进料到第一阶段反应器中，将含有相当于一步消耗量的水的含水介质从后续阶段进料到一级反应器中，并且一定量的水对应于整个反应体系中的消耗 在最后阶段喂养。 然后从第一阶段以多级水解产生的全部量的氯化氢作为无水氯化氢回收。 在相分离器中分离的水性介质的全部量保留在反应体系中。

    Preparation of methyl chloride
    3.
    发明授权
    Preparation of methyl chloride 失效
    氯甲烷的制备

    公开(公告)号：US5917099A

    公开(公告)日：1999-06-29

    申请号：US78714

    申请日：1998-05-14

    申请人： Tomomi Narita ,  Hiroyuki Kobayashi ,  Yukinori Satoh ,  Yoshihiro Shirota

    发明人： Tomomi Narita ,  Hiroyuki Kobayashi ,  Yukinori Satoh ,  Yoshihiro Shirota

    IPC分类号： C07C17/16 ,  C07C19/03

    CPC分类号： C07C17/16 ,  Y02P20/582

    摘要： Methyl chloride is prepared by effecting liquid-phase reaction between hydrogen chloride and methanol in the absence of a catalyst. The reaction is effected in divided stages including at least an early stage and a last stage. The early stage of reaction is effected in a stoichiometric excess of hydrogen chloride. The last stage of reaction is effected in a stoichiometric excess of methanol. The invention is industrially advantageous in that methyl chloride can be prepared at a high conversion of hydrogen chloride while suppressing the formation of dimethyl ether by-product.

    摘要翻译： 在不存在催化剂的情况下通过在氯化氢和甲醇之间进行液相反应制备甲基氯。 反应分为两个阶段进行，包括至少早期阶段和最后阶段。 反应的早期阶段是在化学计量过量的氯化氢中进行。 反应的最后阶段在化学计量过量的甲醇中进行。 本发明在工业上是有利的，因为氯甲烷的高转化率可以制备甲基氯，同时抑制二甲醚副产物的形成。

    Vinyl chloride polymerization with recycle return projecting into gas phase region of reactor
    6.
    发明授权
    Vinyl chloride polymerization with recycle return projecting into gas phase region of reactor 失效
    乙烯基氯化物聚合反应再循环回到反应器的气相区域

    公开(公告)号：US5447999A

    公开(公告)日：1995-09-05

    申请号：US193866

    申请日：1994-07-09

    申请人： Takuya Ueda ,  Yoshihiro Shirota ,  Yoshihiko Hirai ,  Toshiaki Maruyama ,  Tadashi Amano

    发明人： Takuya Ueda ,  Yoshihiro Shirota ,  Yoshihiko Hirai ,  Toshiaki Maruyama ,  Tadashi Amano

    IPC分类号： B01J19/00 ,  C08F2/00 ,  C08F2/16 ,  C08F14/06 ,  C08F114/06

    CPC分类号： C08F2/002 ,  B01J19/002 ,  C08F14/06 ,  B01J2219/00252

    摘要： A polymerization process, comprises a polymerization vessel, a reflux condenser installed outside the polymerization vessel and a pipe connected between the reflux condenser and a wall of the polymerization vessel with an end thereof opening into a gaseous phase region inside the polymerization vessel, for returning the liquid condensate to the polymerization vessel, wherein said end projects from an inner surface of the wall of the polymerization vessel into the gaseous phase region. In polymerizing a monomer having an ethylenically unsaturated double bond using the polymerization apparatus, the quantity of heat removed by the reflux condenser is increased stepwise or continuously with progress of the polymerization, such that not less than 20% of the total reaction heat generated during the whole course of the polymerization is removed by the reflux condenser. With 100 or more repeated polymerization runs, polymer scale deposition inside the vessel is minimal even below the pipe end.

    摘要翻译： 聚合方法包括聚合容器，安装在聚合容器外部的回流冷凝器和连接在回流冷凝器和聚合容器壁之间的管道，其端部开口到聚合容器内的气相区域， 液体冷凝物到聚合容器中，其中所述端部从聚合容器的壁的内表面突出到气相区域中。 在使用聚合装置聚合具有烯键式不饱和双键的单体时，由回流冷凝器除去的热量随着聚合的进行而逐步或连续地增加，使得不少于20℃时产生的反应热总量 通过回流冷凝器除去整个聚合过程。 通过100次或更多次的反复聚合运行，在管端下方，容器内的聚合物垢沉积是最小的。

    Method of discharging gaseous vinyl chloride monomer from a polymerization reactor
    7.
    发明授权
    Method of discharging gaseous vinyl chloride monomer from a polymerization reactor 失效
    从聚合反应器中排出气态氯乙烯单体的方法

    公开(公告)号：US4229568A

    公开(公告)日：1980-10-21

    申请号：US7570

    申请日：1979-01-29

    申请人： Norinobu Wada ,  Yoshihiro Shirota

    发明人： Norinobu Wada ,  Yoshihiro Shirota

    IPC分类号： C08F14/00 ,  B01J19/00 ,  C08F2/00 ,  C08F6/00 ,  C08F6/06 ,  C08F14/06 ,  C08F6/24

    CPC分类号： B01J19/002 ,  C08F14/06

    摘要： The unreacted gaseous vinyl chloride monomer still remaining in a polymerization reactor from which the polymerizate has been removed can be discharged by blowing steam into the reactor from its top so that the gaseous monomer is pushed downward and moved out from the bottom of the reactor, followed by a conventional treatment for condensation. This method of discharge serves to put the reactor open to the ambient atmosphere without the emission of the unreacted monomer and, as such, solve the problems of the workers' health and environmental pollution.

    摘要翻译： 仍然残留在聚合反应器中的未反应的气态氯乙烯单体可以通过从其顶部吹入反应器中而排出，从而将气态单体向下推并从反应器的底部移出，随后 通过常规冷凝处理。 这种排放方法可以使反应堆向周围环境敞开，不排放未反应的单体，从而解决了工人健康和环境污染的问题。

    Polymerization apparatus effective in preventing polymer scale deposition
    8.
    发明授权
    Polymerization apparatus effective in preventing polymer scale deposition 失效
    聚合装置有效防止聚合物垢沉积

    公开(公告)号：US5618497A

    公开(公告)日：1997-04-08

    申请号：US415984

    申请日：1995-04-04

    申请人： Takuya Ueda ,  Yoshihiro Shirota ,  Yoshihiko Hirai ,  Toshiaki Maruyama ,  Tadashi Amano

    发明人： Takuya Ueda ,  Yoshihiro Shirota ,  Yoshihiko Hirai ,  Toshiaki Maruyama ,  Tadashi Amano

    IPC分类号： B01J19/00 ,  C08F2/00 ,  C08F2/16 ,  C08F14/06 ,  F28B9/08

    CPC分类号： C08F2/002 ,  B01J19/002 ,  C08F14/06 ,  B01J2219/00252

    摘要： A polymerization apparatus, comprises a polymerization vessel, a reflux condenser installed outside the polymerization vessel and a pipe connected between the reflux condenser and a wall of the polymerization vessel with an end thereof opening into a gaseous phase region inside the polymerization vessel, for returning the liquid condensate to the polymerization vessel, wherein said end projects from an inner surface of the wall of the polymerization vessel into the gaseous phase region. In polymerizing a monomer having an ethylenically unsaturated double bond using the polymerization apparatus, the quantity of heat removed by the reflux condenser is increased stepwise or continuously with progress of the polymerization, such that not less than 20% of the total reaction heat generated during the whole course of the polymerization is removed by the reflux condenser. With 100 or more repeated polymerization runs, polymer scale deposition inside the vessel is minimal even below the pipe end.

    摘要翻译： 聚合装置包括聚合容器，安装在聚合容器外部的回流冷凝器和连接在回流冷凝器和聚合容器壁之间的管，其端部开口到聚合容器内的气相区域， 液体冷凝物到聚合容器中，其中所述端部从聚合容器的壁的内表面突出到气相区域中。 在使用聚合装置聚合具有烯键式不饱和双键的单体时，由回流冷凝器除去的热量随着聚合的进行而逐步或连续地增加，使得不少于20℃时产生的反应热总量 通过回流冷凝器除去整个聚合过程。 通过100次或更多次的反复聚合运行，在管端下方，容器内的聚合物垢沉积是最小的。

    Polymerization method producing vinyl chloride polymer
    10.
    发明授权
    Polymerization method producing vinyl chloride polymer 失效
    生产氯乙烯聚合物的聚合方法

    公开(公告)号：US5610245A

    公开(公告)日：1997-03-11

    申请号：US364461

    申请日：1994-12-27

    申请人： Yasuhiro Takahashi ,  Tadashi Amano ,  Yoshihiro Shirota

    发明人： Yasuhiro Takahashi ,  Tadashi Amano ,  Yoshihiro Shirota

    IPC分类号： B01J19/00 ,  B01J19/18 ,  C08F2/18 ,  C08F14/06

    CPC分类号： B01J19/18 ,  B01J19/0013 ,  C08F14/06 ,  B01J2219/00083 ,  B01J2219/185 ,  B01J2219/1943

    摘要： A polymerization method 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 a vertically continuously extending coil (6), and a refrigerant being passed through said baffles and said coil. 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： 一种聚合方法，特别是在氯乙烯的悬浮聚合中使用的聚合方法，包括具有大致圆柱形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挡板（5），包括垂直延伸的管道， 和垂直连续延伸的线圈（6），并且制冷剂通过所述挡板和所述线圈。 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。