A process for the manufacture of halogenated hydrocarbons which comprises contacting a hydrocarbon or halogenated hydrocarbon feedstock with a solution of a halide carrier to halogenate the feedstock whereby the halide carrier is reduced to a spent carrier and regenerating the halide carrier by electrolysis of the spent carrier solution from the halogenation reaction by electrolysing the spent carrier solution in the presence of halide ions under conditions whereby deposition of metal or metal salts and liberation of elemental halogen are substantially avoided. In particular embodiments, the feedstock is halogenated using a non-aqueous solution of the halide carrier in which the ratio of halide ion: metal ion of the halide carrier is below 2 : 1, preferably about 1 : 1 and regeneration of the halide carrier is carried out in a three-compartment cell having two ion-exchange membranes or a diaphragm and a membrane. The halide carrier is a halide salt of a metal of variable valency in which the metal is in a higher va- I lency state, especially cupric chloride or ferric chloride.
一种制造卤代烃的工艺,包括将碳氢化合物或卤代烃原料与卤化载体溶液接触以卤化原料,从而将卤化载体还原成乏载体,并通过电解卤化反应产生的乏载体溶液来再生卤化载体,电解乏载体溶液时要有卤化离子存在,电解条件要基本上避免
金属或
金属盐的沉积和元素卤素的释放。在特定的实施方案中,使用卤化载体的非
水溶液对原料进行卤化,其中卤化载体的卤化离子与
金属离子之比低于 2:1,最好约为 1:1,卤化载体的再生在具有两个离子交换膜或一个隔膜和一个膜的三室电池中进行。卤化载体是可变价
金属的卤化盐,其中
金属处于较高价态,特别是
氯化
铜或
氯化
铁。