It is an object of the present invention to provide a catalyst for manufacturing a carboxylic ester, which has superior catalytic activity. The present invention relates to a catalyst for preparing a carboxylic ester, used in a) a reaction for preparing a carboxylic ester by reacting oxygen, an aldehyde, and an alcohol, or b) a reaction for manufacturing a carboxylic ester by reacting oxygen and one or more types of alcohol, comprising a carrier and 1) ultrafine gold particles and/or 2) ultrafine metal particles containing gold and a second element other than gold, having an average particle diameter of not more than 6 nm, are supported on the carrier.
本发明的目的是提供一种制造
羧酸酯的催化剂,它具有优异的催化活性。本发明涉及一种制备
羧酸酯的催化剂,用于 a) 通过氧、醛和醇的反应制备
羧酸酯的反应,或 b) 通过氧和一种或多种醇的反应制备
羧酸酯的反应,该催化剂由载体和 1) 超细
金颗粒和/或 2) 含
金和
金以外的第二种元素的超细
金属颗粒(平均颗粒直径不超过 6 纳米)支撑在载体上组成。