公开(公告)号：US20190247830A1

公开(公告)日：2019-08-15

申请号：US16335020

申请日：2016-09-20

申请人： HighChem Technology Co., LTD.

发明人： Jianyu CHAI ,  Kennin SO ,  Huaduan ZHAN ,  Yongye LI

IPC分类号： B01J21/04 ,  B01J23/89 ,  B01J37/02 ,  B01J37/06 ,  B01J37/18 ,  B01J35/08 ,  B01J37/10 ,  B01J35/10 ,  B01J35/00

CPC分类号： B01J21/04 ,  B01J23/8906 ,  B01J35/0026 ,  B01J35/08 ,  B01J35/1009 ,  B01J35/1076 ,  B01J37/0213 ,  B01J37/0236 ,  B01J37/06 ,  B01J37/10 ,  B01J37/18

摘要： The present application relates to a catalyst carrier for use in the synthesis of dialkyl oxalates by gas-phase catalytic coupling of carbon monoxide comprising microscopic fine pores and one or more macroscopic large pores running through the catalyst carrier, wherein the ratio of the average pore diameter of each macroscopic large pore to the average diameter of the catalyst carrier is 0.2 or more. The present application also relates to a catalyst, comprising the catalyst carrier, an active component and an optional auxiliary, supported on the catalyst carrier. The catalyst according to the present invention not only catalyze effectively coupling of carbon monoxide in a gas phase to form dialkyl oxalate, but also improves heat dissipation, reduces pressure drop, reduces the amount applied of precious metal such as palladium, thereby reducing the use cost of the catalyst and production cost of dialkyl oxalate and then facilitating industrial mass production of dialkyl oxalate.