Abstract: The present invention relates to a carbon-based precious metal-transition metal composite catalyst and a preparation method therefor, and more particularly, to a catalyst synthesis method in which, when preparing a high-content precious metal-transition metal composite catalyst, a catalyst having uniform particles and composition can be prepared, and cyclohexane dimethanol (CHDM) is efficiently produced by the hydrogenation reaction of cyclohexane dicarboxylic acid (CHDA) in an aqueous solution.
Type:
Grant
Filed:
December 10, 2019
Date of Patent:
April 30, 2024
Assignee:
HANWHA SOLUTIONS CORPORATION
Inventors:
Jeong Kwon Kim, Sun Woo Yook, Bong Sik Jeon, Wan Jae Myeong
Abstract: Disclosed is a method of preparing N-amino compounds from corresponding secondary amines by reacting a secondary amine with nitrous acid and zinc in a neutral pH reaction media to form the corresponding N-amine.