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:
Apr. 13, 2021
Filed:
Mar. 27, 2017
Wanhua Chemical Group Co., Ltd., Shandong, CN;
Jianglin Hu, Shandong, CN;
Yunhai Liu, Shandong, CN;
Yuan Li, Shandong, CN;
Qingmei Jiang, Shandong, CN;
Yanfang Song, Shandong, CN;
Yang Yang, Shandong, CN;
Changsheng Chen, Shandong, CN;
Ke Ding, Shandong, CN;
Wei Zeng, Shandong, CN;
Hengdong Yang, Shandong, CN;
Kun Wang, Shandong, CN;
Weiqi Hua, Shandong, CN;
WANHUA CHEMICAL GROUP CO., LTD., Yantai, CN;
Abstract
The present invention provides a method for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol. The catalyst used in the method is prepared by supporting a noble metal and a promoter on an organic polymer supporter or an inorganic hybrid material supporter, wherein the supporter is functionalized by a nitrogen-containing ligand. When the catalyst is used in the hydrogenolysis of tetrahydrofurfuryl alcohol to prepare 1,5-pentanediol, a good reaction activity and a high selectivity can be achieved. The promoter and the nitrogen-containing ligand in the supporter are bound to the catalyst through coordination, thereby the loss of the promoter is significantly decreased, and the catalyst has a particularly high stability. The lifetime investigation of the catalyst, which has been reused many times or used continuously for a long term, suggests that the catalyst has no obvious change in performance, thus reducing the overall process production cost.