CONTINUOUS LOW-TEMPERATURE PROCESS TO PRODUCE TRANS-1-CHLORO-3,3,3-TRIFLUOROPROPENE
    151.
    发明申请
    CONTINUOUS LOW-TEMPERATURE PROCESS TO PRODUCE TRANS-1-CHLORO-3,3,3-TRIFLUOROPROPENE 有权
    连续低温生产反式-1-氯代-3,3,3-三氟丙烯的方法

    公开(公告)号:US20140186230A1

    公开(公告)日:2014-07-03

    申请号:US14195893

    申请日:2014-03-04

    Abstract: Disclosed is process for the production of (E) 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)) by conducting a continuous reaction without the use of a catalyst. Also disclosed is an integrated system for producing hydrofluoro olefins, particularly 1233zd(E). The manufacturing process includes six major unit operations: (1) a fluorination reaction of HCC-240fa (in continuous or semi-batch mode) using HF with simultaneous removal of by-product HCl and the product 1233zd(E); (2) recycle of unreacted HCC-240fa and HF together with under-fluorinated by-products back to (1); (3) separation and purification of by-product HCl; (4) separation of excess HF back to (1); (5) purification of final product, 1233zd(E); and (6) isomerization of by-product 1233zd(Z) to 1233zd(E) to maximize the process yield.

    Abstract translation: 公开了通过在不使用催化剂的情况下进行连续反应来制备(E)1-氯-3,3,3-三氟丙烯(HCFO-1233zd(E))的方法。 还公开了用于制备氢氟烯烃的综合系统,特别是1233zd(E)。 制造过程包括六个主要单元操作:(1)使用HF同时除去副产物HCl和产物1233zd(E)的HCC-240fa(连续或半间歇模式)的氟化反应; (2)将未反应的HCC-240fa和HF与未氟化的副产物一起回收至(1); (3)副产物HCl的分离和纯化; (4)将过量的HF分离回(1); (5)最终产物的纯化,1233zd(E); 和(6)副产物1233zd(Z)异构化为1233zd(E)以使工艺产率最大化。

Patent Agency Ranking