[EN] PROCESS FOR THE PRODUCTION OF CHLORINATED PROPENES<br/>[FR] PROCÉDÉ DE PRODUCTION DE PROPÈNES CHLORÉS
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2013022677A1
公开(公告)日:2013-02-14
Processes for the production of chlorinated propenes are provided. The present processes make use of a feedstock comprising 1,2,3-trichloropropane and chlorinates the 1,1,2,3-tetrachloropropane generated by the process prior to a dehydrochlorination step. Production of the less desirable pentachloropropane isomer, 1,1,2,3,3-pentachloropropane, is thus minimized. The present processes provide better reaction yield as compared to conventional processes that require dehydrochlorination of 1,1,2,3-tetrachloropropane prior to chlorinating the same. The present process can also generate anhydrous HCl as a byproduct that can be removed from the process and used as a feedstock for other processes, while limiting the production of waste water, thus providing further time and cost savings.
提供了生产氯代丙烯的工艺。目前的工艺利用包含1,2,3-三氯丙烷的原料,并在去氢氯化步骤之前氯化由该过程产生的1,1,2,3-四氯丙烷。因此,生产较不理想的五氯丙烷异构体1,1,2,3,3-五氯丙烷被最小化。与需要在氯化相同物质之前对1,1,2,3-四氯丙烷进行去氢氯化的传统工艺相比,目前的工艺提供了更好的反应产率。目前的工艺还可以生成无水HCl作为副产品,可以从工艺中去除并用作其他工艺的原料,同时限制废水的产生,从而提供进一步的时间和成本节约。