合成氯乙烯单体非汞触媒的研究现状

Status of Non-mercury Catalyst for Synthesis Vinyl Chloride Monomer

目前氯乙烯单体的工业合成方法主要有乙炔氢氯化法和乙烯氧氯化法。在我国大约70%的氯乙烯单体采用乙炔氢氯化法生产。这是由我国的特殊能源结构所决定的。而乙炔氢氯化法工艺路线一直采用剧毒的氯化汞/活性炭为催化剂。该催化剂易挥发流失,对工人健康及环境造成了严重的危害。如何消除汞触媒污染,乙炔氢氯化合成氯乙烯清洁工艺路线是氯碱行业函待解决的问题。

Vinyl chloride monomer（VCM）is mainly used for synthesis of polyvinyl chloride（PVC）.In our country,about 70% of vinyl chloride monomer products are produced from the acetylene hydrochlorination.This is determined by our special energy structure.Acetylene hydrochlorination-poisonous activated carbon supported HgCl_2 catalyst has been used in this process.The toxicity and volatility of the catalyst causes serious damage to the workers and environment.It is a challenge for the chlor-alkali industry to eliminate or reduce the pollution caused by the catalyst.