The method of preparation 1,1,2,3-tetrachloropropylene

The method of preparation 1,1,2,3-tetrachloropropylene

  • CN 101,754,941 B
  • Filed: 07/25/2008
  • Issued: 10/21/2015
  • Est. Priority Date: 07/25/2007
  • Status: Active Grant
First Claim
Patent Images

1. prepare the method for the chloro-1-propylene of 1,2,3-tetra-, comprising:

  • In the gas phase, under the existence of the first catalyzer, make CH 2clCCl 2cH 2cl dehydrochlorination comprises CHCl=CClCH to generate 2first intermediate product of Cl;

    Make the CHCl=CClCH of described first intermediate product 2the chlorination at least partially of Cl, comprises CHCl to be formed 2cCl 2cH 2second intermediate product of Cl;

    With In the gas phase, under the existence of the second catalyzer, make the CHCl from described second intermediate product 2cCl 2cH 2the dehydrochlorination at least partially of Cl comprises CCl to be formed 2=CClCH 2the final product of Cl, Wherein said first and second catalyzer are selected from;

    halogenated transition metal oxide compound, and this halogenated transition metal oxide compound is selected from Cr 2o 3, Fe 2o 3, Al 2o 3, NiO 2, MoO 3, WO 3, TiO 2, V 2o 5, and MgO, pretreated gac, and these combination.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×