US 12,459,884 B2
Method for producing carbonate esters, and catalytic structure for producing carbonate esters
Kimihito Suzuki, Tokyo (JP); Yousuke Shinkai, Tokyo (JP); Hongyu Liu, Tokyo (JP); Hidefumi Harada, Tokyo (JP); Yuzuru Kato, Tokyo (JP); Kentaro Morita, Tokyo (JP); and Asuka Ohashi, Tokyo (JP)
Assigned to NIPPON STEEL CORPORATION, Tokyo (JP); MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo (JP); and NIPPON STEEL ENGINEERING CO., LTD., Tokyo (JP)
Appl. No. 17/257,730
Filed by NIPPON STEEL CORPORATION, Tokyo (JP); MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo (JP); and NIPPON STEEL ENGINEERING CO., LTD., Tokyo (JP)
PCT Filed Jul. 8, 2019, PCT No. PCT/JP2019/027020
§ 371(c)(1), (2) Date Jan. 4, 2021,
PCT Pub. No. WO2020/013135, PCT Pub. Date Jan. 16, 2020.
Claims priority of application No. 2018-130710 (JP), filed on Jul. 10, 2018.
Prior Publication US 2021/0284594 A1, Sep. 16, 2021
Int. Cl. B01J 21/08 (2006.01); B01J 23/10 (2006.01); B01J 35/56 (2024.01); C07C 68/04 (2006.01)
CPC C07C 68/04 (2013.01) [B01J 21/08 (2013.01); B01J 23/10 (2013.01)] 10 Claims
 
1. A method for producing a carbonate ester, comprising allowing a monohydric alcohol and carbon dioxide to react with each other in the presence of a catalytic structure and a hydration agent to produce a carbonate ester, wherein:
the catalytic structure comprises a base material, and a catalytic layer which is formed on at least a part of the surface of the base material and which contains a solid catalyst and an inorganic binder;
the solid catalyst contains cerium oxide;
the amount of the supported solid catalyst is 15 g/m2 to 200 g/m2; and
the inorganic binder contains silica and/or alumina;
wherein the catalytic structure further comprises an intermediate layer consisting of the inorganic binder, formed between the catalytic layer and the base material,
wherein the average thickness of the catalytic layer is 12 μm-180 μm.