[EN] PROCESS FOR THE SYNTHESIS OF PERFLUOROBUTADIENE<br/>[FR] PROCÉDÉ DE SYNTHÈSE DE PERFLUOROBUTADIÈNE
申请人:SOLVAY SOLEXIS SPA
公开号:WO2009087067A1
公开(公告)日:2009-07-16
Process for preparing perfluoro-1,3-butadiene, comprising the following steps : A) preparation of fluoro-halo-butanes of formula : CF2 YI -CFYIICFYIICF2 YI (V) in which YI and YII which may be identical or different, may be H, C1 or Br, with the condition that YI and YII are not simultaneously hydrogen; starting with a chloroolefin having the formula : CY'Y = CY'C1 (II) in which Y, Y', Y', which may be identical or different, are H, C1 or Br, with the condition that Y, Y', Y' are not simultaneously hydrogen; and performing the following steps : - a fluorodimerization, and - a fluorination with elemental fluorine, the order of the two steps also possibly being inverted, - a dehalogenation or dehydrohalogenation step being performed between the two steps, B) dehalogenation or dehydrohalogenation of the fluoro-halo compounds of formula (V) to give the compound perfluoro-1,3-butadiene.
制备全氟-1,3-丁二烯的过程,包括以下步骤:A)制备具有以下结构的氟-卤代丁烷:CF2 YI -CFYIICFYIICF2 YI(V),其中YI和YII可能相同或不同,可以是H、Cl或Br,条件是YI和YII不能同时为氢;从具有以下结构的氯烯烃开始:CY'Y = CY'C1(II),其中Y、Y'、Y'可能相同或不同,可以是H、Cl或Br,条件是Y、Y'、Y'不能同时为氢;并执行以下步骤:- 氟二聚化,- 用元素氟进行氟化,两个步骤的顺序也可能被颠倒,- 在两个步骤之间执行去卤或去卤氢化步骤,B)对具有结构式(V)的氟-卤化合物进行去卤或去卤氢化,得到化合物全氟-1,3-丁二烯。