The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2025
Filed:
Jul. 08, 2019
Nippon Steel Corporation, Tokyo, JP;
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Nippon Steel Engineering Co., Ltd., Tokyo, JP;
Kimihito Suzuki, Tokyo, JP;
Yousuke Shinkai, Tokyo, JP;
Hongyu Liu, Tokyo, JP;
Hidefumi Harada, Tokyo, JP;
Yuzuru Kato, Tokyo, JP;
Kentaro Morita, Tokyo, JP;
Asuka Ohashi, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
NIPPON STEEL ENGINEERING CO., LTD., Tokyo, JP;
Abstract
Provided are a method for producing carbonate esters, and a catalytic structure for producing carbonate esters, whereby solid catalyst powder formation and detachment are suppressed and superior carbonate ester reaction efficiency is yielded when a catalytic structure constituted by a sufficient quantity of a cerium-oxide-containing solid catalyst supported on a substrate is used. The method for producing carbonate esters includes reacting a monohydric alcohol and carbon dioxide in the presence of a catalytic structure and a hydrating agent. The catalytic structure includes a substrate and a catalytic layer that is formed on at least a portion of the surface of the substrate and contains a solid catalyst and an inorganic binder. The solid catalyst contains cerium oxide. The supported quantity of the solid catalyst is 15 g/mto 200 g/m, inclusive. The inorganic binder contains silica and/or alumina.