利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

42 条记录 (耗时 0.022 秒)

    PROCEDE DE PREPARATION DE COMPOSES FLUORES
    12.
    发明公开
    PROCEDE DE PREPARATION DE COMPOSES FLUORES 有权

    公开(公告)号：EP2349960A1

    公开(公告)日：2011-08-03

    申请号：EP09740471.9

    申请日：2009-08-19

    申请人： ARKEMA FRANCE

    发明人： PIGAMO, Anne ,  DEVIC, Michel ,  WENDLINGER, Laurent

    IPC分类号： C07C17/25 ,  C07C17/354 ,  C07C21/18 ,  C07C19/08

    CPC分类号： C07C17/25 ,  C07C17/354 ,  C07C21/18 ,  Y02P20/582 ,  C07C19/08

    摘要： One subject of the invention is a process for the preparation of 2,3,3,3-tetrafluoro-1-propene which comprises the following stages: (i) hydrogenation of hexafluoropropylene to give 1,1,1,2,3,3-hexafluoro­propane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the preceding stage to give 1,2,3,3,3-pentafluoro-1-propene; (iii) hydrogenation of the 1,2,3,3,3-pentafluoro-1-propene obtained in the preceding stage to give 1,1,1,2,3-pentafluoropropane; and (iv) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage to give 2,3,3,3-tetrafluoro-1-propene. Stages (ii) and (iv) are carried out using a water and potassium hydroxide mixture with the potassium hydroxide representing between 58 and 86% by weight of the mixture and at a temperature of between 110 and 180ºC.

    摘要翻译： 本发明的一个主题是制备2,3,3,3-四氟-1-丙烯的方法，其包括以下阶段：（i）氢化六氟丙烯以得到1,1,1,2,3,3 六氟丙烷; （ii）将前段得到的1,1,1,2,3,3-六氟丙烷脱氟化氢，得到1,2,3,3,3-五氟-1-丙烯; （iii）将前一步骤中得到的1,2,3,3,3-五氟-1-丙烯氢化得到1,1,1,2,3-五氟丙烷; 和（iv）在前一步骤中得到的1,1,1,2,3-五氟丙烷脱氟化氢得到2,3,3,3-四氟-1-丙烯。 阶段（ii）和（iv）使用氢氧化钾和氢氧化钾的混合物进行，其中氢氧化钾占混合物重量的58-86％，温度为110-180℃。

    PROCEDE DE PREPARATION DE COMPOSES FLUORES
    16.
    发明公开
    PROCEDE DE PREPARATION DE COMPOSES FLUORES 有权
    用于生产氟化合物

    公开(公告)号：EP2456741A1

    公开(公告)日：2012-05-30

    申请号：EP10734502.7

    申请日：2010-05-21

    申请人： Arkema France

    发明人： DEVIC, Michel ,  DOUCET, Nicolas ,  WENDLINGER, Laurent ,  CAVALLINI, Géraldine ,  SEDAT, Pierre-Marie ,  AVRIL, Karine

    IPC分类号： C07C17/25 ,  C07C21/18

    CPC分类号： C07C17/25 ,  C07C17/354 ,  C07C21/18 ,  C07C19/08

    摘要： The invention relates to a method for preparing fluoropropenes of formula (I) CF
    3 CF=CHR, where R is a hydrogen or fluorine atom from at least one compound of formula (Ia) CF
    3 CF=CFR, where R has the same meaning as in formula (I), said method including the following steps: (i) hydrogenating at least one compound of formula (Ia) in an adiabatic reactor in the presence of a catalyst with a superstoichiometric amount of hydrogen so as to produce a hydrofluoropropane; (ii) partially condensing the flow from the adiabatic reactor of step (i) so as to produce a gaseous phase fraction, including unreacted hydrogen and a portion of the formed hydrofluoropropane, which is recirculated to step (i), and a liquid phase fraction including the residue of the hydrofluoropropane; (iii) dehydrofluorinating hydrofluoropropane from the liquid fraction of step (ii) using potassium hydroxide in an aqueous reaction medium contained in an agitated reactor so as to produce the fluoropropene of formula (I); and (iv) purifying the fluoropropene obtained in step (iii).

    PROCEDE DE PREPARATION DE COMPOSES FLUORES OLEFINIQUES
    17.
    发明公开
    PROCEDE DE PREPARATION DE COMPOSES FLUORES OLEFINIQUES 有权
    VERFAHREN ZUR HERSTELLUNG VON FLUOROLEFINVERBINDUNGEN

    公开(公告)号：EP2438034A1

    公开(公告)日：2012-04-11

    申请号：EP10727092.8

    申请日：2010-05-04

    申请人： Arkema France

    发明人： GUILLET, Dominique ,  DEVIC, Michel

    IPC分类号： C07C17/25 ,  C07C21/18

    CPC分类号： C07C17/25 ,  Y02P20/582 ,  C07C21/18

    摘要： The subject matter of the invention is a process for preparing fluoroolefin compounds. The invention relates more particularly to a process for producing a (hydro)fluoroolefin compound, which comprises (i) bringing at least one compound comprising from three to six carbon atoms, at least two fluorine atoms and at least one hydrogen atom, on the condition that at least one hydrogen atom and one fluorine atom are located on adjacent carbon atoms, into contact with a solid reactant comprising calcium hydroxide.

    摘要翻译： 本发明的主题是制备氟烯烃化合物的方法。 本发明更具体地涉及（氢）氟代烯烃化合物的制备方法，该方法包括：（i）在条件下使至少一种包含3至6个碳原子的化合物，至少2个氟原子和至少1个氢原子 至少一个氢原子和一个氟原子位于相邻碳原子上，与包含氢氧化钙的固体反应物接触。

    REACTEURS REVETUS, LEUR PROCEDE DE FABRICATION ET LEURS UTILISATIONS
    19.
    发明授权
    REACTEURS REVETUS, LEUR PROCEDE DE FABRICATION ET LEURS UTILISATIONS 有权
    涂覆的电抗器，相关的方法和使用

    公开(公告)号：EP2094383B1

    公开(公告)日：2010-05-12

    申请号：EP07858666.6

    申请日：2007-11-06

    申请人： ARKEMA FRANCE

    发明人： DEVIC, Michel

    IPC分类号： B01J19/02 ,  C07B39/00

    CPC分类号： B01J19/02 ,  B01J2219/0245 ,  B82Y30/00 ,  C07B39/00 ,  C07C17/21 ,  C07C19/12

    摘要： The invention relates to coated reactors resistant to acid corrosion, the production method thereof and the use of same in processes in superacid media. More specifically, the invention relates to a reactor comprising an inner metal wall having a fluoropolymer coating anchored thereto using a perforated sheet positioned between the inner metal wall and the fluoropolymer coating. The surface of the sheet that is in contact with the metal wall of the reactor has a sufficient roughness in order to form a free space (for gases) between same and the metal wall of the reactor. In addition, the reactor is provided with a device for maintaining the pressure in the free space below that in the reactor.