利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

21 条记录 (耗时 0.011 秒)

    Method for producing tetrafluoroethylene
    1.
    发明授权
    Method for producing tetrafluoroethylene 有权
    制备四氟乙烯的方法

    公开(公告)号：US06849163B2

    公开(公告)日：2005-02-01

    申请号：US10220316

    申请日：2001-02-27

    申请人： Shigeyuki Yoshii ,  Yukio Homoto

    发明人： Shigeyuki Yoshii ,  Yukio Homoto

    IPC分类号： C07C17/269 ,  C07C17/38 ,  C07C17/383 ,  B01D3/14 ,  B01D3/36 ,  C07C21/18

    CPC分类号： C07C17/269 ,  C07C17/38 ,  C07C17/383 ,  C07C21/18 ,  C07C21/185

    摘要： There is provided a process for recovering tetrafluoroethylene wherein an amount of energy required to obtain TFE is reduced.In the process for producing a TFE mixture as an intended mixture which contains TFE at a higher concentration from a raw material mixture (10) which contains TFE, a component of which boiling point is lower than that of TFE and a component of which boiling point is higher than that of TFE,(1) the raw material is subjected to a preliminary distillation treatment (12) so as to obtain (a) a first fraction (15) which contains at least a portion of the component of which boiling point is higher than that of TFE and (b) a second fraction (14) as the balance which contains TFE and the component of which boiling point is lower than that of TFE, and then(2) the second fraction is subjected to a main distillation treatment (16) so as to obtain (c) a third faction (20) formed by distilling off the component of which boiling point is lower than that of TFE, and (d) a fourth fraction (18) as the intended mixture being the balance which contains TFE.

    摘要翻译： 提供了一种回收四氟乙烯的方法，其中获得TFE所需的能量减少。在从含有TFE的原料混合物（10）中制备含有较高浓度的TFE的预期混合物的TFE混合物的方法中， 沸点低于TFE的成分，沸点高于TFE的成分的成分，（1）对原料进行预蒸馏处理（12），得到（a） 含有至少一部分沸点高于TFE的部分的第一馏分（15）和（b）作为余量的第二馏分（14），其含有TFE和沸点较低的成分 （2）第二馏分进行主蒸馏处理（16），得到（c）通过蒸馏除沸点低于沸点的组分形成的第三馏分（20） 的TFE，（d）第四 作为预期混合物的级分（18）是包含TFE的天平。

    Process for preparing 1,1,1,2-tetrafluoroethane
    2.
    发明授权
    Process for preparing 1,1,1,2-tetrafluoroethane 失效
    制备1,1,1,2-四氟乙烷的方法

    公开(公告)号：US5475166A

    公开(公告)日：1995-12-12

    申请号：US282565

    申请日：1994-07-29

    申请人： Satoshi Koyama ,  Yukio Homoto ,  Naoki Esaka

    发明人： Satoshi Koyama ,  Yukio Homoto ,  Naoki Esaka

    IPC分类号： C07C17/20 ,  C07C17/21 ,  C07C19/08 ,  C07C17/00

    CPC分类号： C07C19/08 ,  C07C17/206 ,  C07C17/21

    摘要： In a process for preparing 1,1,1-trifluorochloroethane by reacting, in a gas phase, trichloroethylene and hydrogen fluoride, when the reactant gases are diluted with a gas which is inactive to the reaction, it is very easy to control a reaction temperature, and when a generated gas from the reaction of 1,1,1-trifluorochloroethane and hydrogen fluoride is used as a diluent gas, generation of 1,1-difluoroethylene is suppressed to a very low level while not influencing the reaction between trichloroethylene and hydrogen fluoride.

    摘要翻译： 在通过在气相中使三氯乙烯和氟化氢反应制备1,1,1-三氟氯乙烷的方法中，当反应气体用对反应无活性的气体稀释时，非常容易控制反应温度 ，当使用来自1,1,1-三氟氯乙烷和氟化氢的反应产生的气体作为稀释气体时，1,1-二氟乙烯的产生被抑制到非常低的水平，同时不影响三氯乙烯与氢气之间的反应 氟化物。

    Process for producing fluoromonomer
    4.
    发明授权
    Process for producing fluoromonomer 有权
    制备含氟单体的方法

    公开(公告)号：US07317071B2

    公开(公告)日：2008-01-08

    申请号：US10506008

    申请日：2003-02-27

    申请人： Takuya Ichida ,  Yukio Homoto

    发明人： Takuya Ichida ,  Yukio Homoto

    IPC分类号： C08F6/00

    CPC分类号： C07C17/367 ,  C07C21/185 ,  C07C21/18 ,  C07C23/06

    摘要： Processes for producing a fluoromonomer from a fluoropolymer, among which one that can be carried out more simply is a process wherein thermal decomposition of a fluoropolymer is preformed by means of a rotary kiln (5) so as to produce a fluoromonomer, the process comprising feeding a fluoropolymer and steam (3) into a rotary kiln and heating the fluoropolymer.

    摘要翻译： 从氟聚合物制造含氟单体的方法，其中可以更简单地进行的方法是通过回转窑（5）预先形成含氟聚合物的热分解以制备含氟单体的方法，该方法包括进料 将含氟聚合物和蒸汽（3）加入回转窑中并加热含氟聚合物。

    Method for producing mixture of fluoroalkyl iodide telomers and method for producing mixture of fluorine-containing (meth)acrylate esters
    5.
    发明申请
    Method for producing mixture of fluoroalkyl iodide telomers and method for producing mixture of fluorine-containing (meth)acrylate esters 有权
    氟烷基碘调节剂混合物的制备方法和含氟（甲基）丙烯酸酯的混合物的制造方法

    公开(公告)号：US20050148790A1

    公开(公告)日：2005-07-07

    申请号：US11074707

    申请日：2005-03-09

    申请人： Yukio Homoto ,  Kunitada Tanaka

    发明人： Yukio Homoto ,  Kunitada Tanaka

    IPC分类号： C07C17/275 ,  C07C17/278 ,  C07C19/16 ,  C07C67/10 ,  C07C69/653 ,  C07C69/52

    CPC分类号： C07C19/16 ,  C07C17/275 ,  C07C17/278 ,  C07C67/10 ,  C07C69/653

    摘要： A mixture of fluoroalkyl iodide telomers represented by the formula: Rf(CF2CF2)nI wherein Rf represents a fluoroalkyl group whose number of carbon atoms is in the range of 1 to 10, with the polymerization degree n equal to or more than k that is an integer of 3 or more, is obtained by reacting a fluoroalkyl iodide with tetrafluoroethylene in a first reactor followed by fractionating a first reaction mixture which contains fluoroalkyl iodide telomers of low polymerization degree, as well as by reacting the telomer with n of (k−1) separated from the first reaction mixture with tetrafluoroethylene in the second reactor.

    摘要翻译： 由下式表示的氟代烷基碘调节剂的混合物：其中（R 1，R 2，R 2，R 2） R f表示碳原子数为1〜10的氟代烷基，聚合度n为3以上的k以上的聚合度n通过 使氟烷基碘与四氟乙烯在第一反应器中反应，然后分馏含有低聚合度的氟烷基碘调节剂的第一反应混合物，以及通过使调聚物与从第一反应混合物分离的（k-1）n与四氟乙烯 在第二反应器中。

    Method for producing fluoroalkyl iodide telomer mixture and method for producing mixture fluorine-containing (meth) acrylate esters
    8.
    发明授权
    Method for producing fluoroalkyl iodide telomer mixture and method for producing mixture fluorine-containing (meth) acrylate esters 失效
    氟代烷基碘调聚物混合物的制备方法和含氟（甲基）丙烯酸酯混合物的制备方法

    公开(公告)号：US07038095B2

    公开(公告)日：2006-05-02

    申请号：US10466869

    申请日：2002-02-05

    申请人： Yukio Homoto ,  Kunitada Tanaka

    发明人： Yukio Homoto ,  Kunitada Tanaka

    IPC分类号： C07C17/00

    CPC分类号： C07C19/16 ,  C07C17/275 ,  C07C17/278 ,  C07C67/10 ,  C07C69/653

    摘要： A mixture of fluoroalkyl iodide telomers represented by the formula: Rf(CF2CF2)nI wherein Rf represents a fluoroalkyl group whose number of carbon atoms is in the range of 1 to 10, with the polymerization degree n equal to or more than k that is an integer of 3 or more, is obtained by reacting a fluoroalkyl iodide with tetrafluoroethylene in a first reactor followed by fractionating a first reaction mixture which contains fluoroalkyl iodide telomers of low polymerization degree, as well as by reacting the telomer with n of (k−1) separated from the first reaction mixture with tetrafluoroethylene in the second reactor.

    摘要翻译： 由下式表示的氟代烷基碘调节剂的混合物：其中（R 1，R 2，R 2，R 2） R f表示碳原子数为1〜10的氟代烷基，聚合度n为3以上的k以上的聚合度n通过 使氟烷基碘与四氟乙烯在第一反应器中反应，然后分馏含有低聚合度的氟烷基碘调节剂的第一反应混合物，以及通过使调聚物与从第一反应混合物分离的（k-1）n与四氟乙烯 在第二反应器中。

    Method of producing 1,1,1,2,2-pentafluoroethane, a method of producing 2,2-dichloro-1,1,1-trifluoroethane, and a method of purifying 1,1,1,2,2-pentafluoroethane
    9.
    发明授权
    Method of producing 1,1,1,2,2-pentafluoroethane, a method of producing 2,2-dichloro-1,1,1-trifluoroethane, and a method of purifying 1,1,1,2,2-pentafluoroethane 失效
    制造1,1,1,2,2-五氟乙烷的方法，2,2-二氯-1,1,1-三氟乙烷的制造方法以及1,1,1,2,2-五氟乙烷

    公开(公告)号：US5847244A

    公开(公告)日：1998-12-08

    申请号：US23881

    申请日：1998-02-13

    申请人： Takashi Shibanuma ,  Yukio Homoto ,  Satoshi Komatsu ,  Toshikazu Yoshimura

    发明人： Takashi Shibanuma ,  Yukio Homoto ,  Satoshi Komatsu ,  Toshikazu Yoshimura

    IPC分类号： C07C17/20 ,  C07C17/21 ,  C07C17/395 ,  C07C19/08 ,  C07C17/08 ,  C07C17/38

    CPC分类号： C07C17/206 ,  C07C17/21 ,  C07C17/395

    摘要： A production method in which reaction processes are divided into two regions comprising one reaction region where mainly perohloroethylene is made to react with HF in a vapor phase in the presence of a catalyst and the other reaction region where HCFC-123 (CF.sub.3 CHCl.sub.2) and/or HCFC-124 (CF.sub.3 CFHCl) is made to react with HF in a vapor phase in the presence of a catalyst, the former region being kept at a higher pressure and the latter region at a lower pressure during the reaction procedure. By this method it is possible to keep the conversion of perchloroethylene at a high level while securing the life of a catalyst, and it is also possible to raise the selectivity of HFC-125. This is a method of producing HFC-125 in which the content of CFC-115 is lowered to not more than 15 vol % of the total amount of HFC-125 and CFC-115, and then CFC-115 is made to react with hydrogen in the presence of a catalyst. By this method, reaction conditions can be lightened and the absolute amount of by-products also decreased, and the effective purification of HFC-125 can be realized.

    摘要翻译： 一种制备方法，其中将反应过程分为两个区域，其中一个反应区域主要使四氯乙烯与HF在气相中在催化剂存在下反应，另一个反应区域是HCFC-123（CF3CHCl2）和/或 在催化剂存在下使HCFC-124（CF 3 CFHCl）在气相中与HF反应，在反应过程中将前一个区域保持在较高的压力，而后一个区域处于较低的压力。 通过该方法，可以保持全氯乙烯的转化率高，同时确保催化剂的寿命，并且还可以提高HFC-125的选择性。 这是生产HFC-125的方法，其中CFC-115的含量降低到不超过HFC-125和CFC-115总量的15vol％，然后使CFC-115与氢反应 在催化剂存在下。 通过该方法，可以减轻反应条件，副产物的绝对量也降低，能够实现HFC-125的有效净化。

    Process for preparing 1,1,1-trifluorochloroethane and 1,1,1,2-tetrafluoroethane
    10.
    发明授权
    Process for preparing 1,1,1-trifluorochloroethane and 1,1,1,2-tetrafluoroethane 失效
    制备1,1,1-三氯氯乙烷和1,1,1,2-四氟乙烷的方法

    公开(公告)号：US5395998A

    公开(公告)日：1995-03-07

    申请号：US187520

    申请日：1994-01-28

    申请人： Satoshi Koyama ,  Yukio Homoto ,  Naoki Esaka

    发明人： Satoshi Koyama ,  Yukio Homoto ,  Naoki Esaka

    IPC分类号： C07C17/20 ,  C07C17/21 ,  C07C19/08 ,  C07C17/08 ,  C07C17/00

    CPC分类号： C07C19/08 ,  C07C17/206 ,  C07C17/21

    摘要： In a process for preparing 1,1,1-trifluorochloroethane by reacting, in a gas phase, trichloroethylene and hydrogen fluoride, when the reactant gases are diluted with a gas which is inactive to the reaction, it is very easy to control a reaction temperature, and when a generated gas from the reaction of 1,1,1-trifluorochloroethane and hydrogen fluoride is used as a diluent gas, generation of 1,1-difluoroethylene is suppressed to a very low level while not influencing the reaction between trichloroethylene and hydrogen fluoride.

    摘要翻译： 在通过在气相中使三氯乙烯和氟化氢反应制备1,1,1-三氟氯乙烷的方法中，当反应气体用对反应无活性的气体稀释时，非常容易控制反应温度 ，当使用来自1,1,1-三氟氯乙烷和氟化氢的反应产生的气体作为稀释气体时，1,1-二氟乙烯的产生被抑制到非常低的水平，同时不影响三氯乙烯与氢气之间的反应 氟化物。