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:
Sep. 08, 2009
Filed:
Sep. 26, 2008
Fang Cui, Lanzhou, CN;
Jing Chen, Lanzhou, CN;
Chungu Xia, Lanzhou, CN;
Haixiao Kang, Lanzhou, CN;
Xinzhi Zhang, Lanzhou, CN;
Jin Tong, Lanzhou, CN;
Xuemei LI, Lanzhou, CN;
Fang Cui, Lanzhou, CN;
Jing Chen, Lanzhou, CN;
Chungu Xia, Lanzhou, CN;
Haixiao Kang, Lanzhou, CN;
Xinzhi Zhang, Lanzhou, CN;
Jin Tong, Lanzhou, CN;
Xuemei Li, Lanzhou, CN;
Abstract
This invention disclosed a method for producing 1,2-propylene glycol from bio-based glycerol. In this method, a CuO—CeO—SiOcatalyst is filled into a fixed bed reactor, a glycerol solution is flowed into the reactor together with hydrogen gas in a manner of top feeding, and controlling the reaction temperature to be 170˜200° C., the reaction pressure to be 1.0˜5.0 MPa, so as to realize the production of 1,2-propylene glycol from the hydrogenation of glycerol. The catalyst used in this invention can sustain a high selectivity for the target product and a high conversion for glycerol for 500 hours.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile