| 摘要 |
<p>PURPOSE: A catalyst for oxychlorination of ethylene to 1,2- dichloroethane processed in a pinned layer is provided to improve a conversion rate with high specific productivity of 1,2- dichloroethane high compared with a catalyst having same geometric parameter and composition. CONSTITUTION: A catalyst for oxychlorinationhas a granular form of hollow having geometric structure, and includes one or more chlorides of metal selected from a group consisting of cupric chloride, alkali metal, alkaline earth metal and a rare earth metal. The catalyst further includes copper 3~12 weight%, alkali metal 1~4 weight%, alkaline earth metal 005~2 weight% and rare earth metal 01~3 weight%. The chloride is supported on an alumina granular. A macropore volume fraction of the catalyst granular is 20%~40%. A diameter of a pore at maximum value of macropore volume fraction distribution curve is 800nm~1500nm. The bulk density of the catalyst is 065~080g / ml.</p> |
