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:
Aug. 11, 2015
Filed:
Feb. 24, 2012
Weimin Yang, Shanghai, CN;
Juntao Liu, Shanghai, CN;
Wanmin Wang, Shanghai, CN;
Jun Kuai, Shanghai, CN;
Weimin Yang, Shanghai, CN;
Juntao Liu, Shanghai, CN;
Wanmin Wang, Shanghai, CN;
Jun Kuai, Shanghai, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC, Shanghai, CN;
Abstract
A process for producing ethylene glycol includes contacting an oxalate with a fluidized bed catalyst under the following conditions: a reaction temperature of from about 170 to about 270° C., a weight space velocity of oxalate of from about 0.2 to about 7 hours, a hydrogen/ester molar ratio of about 20˜200:1, a reaction pressure of from about 1.5 to about 10 MPa, and a reaction temperature differenceT of from about 1 to about 15° C. The fluidized bed catalyst includes: a) from about 5 to about 80 parts by weight of copper and the oxide thereof, b) from about 10 to about 90 parts by weight of at least one carrier selected from silica, molecular sieve or alumina, c) from about 0.01 to about 30 parts by weight of bismuth and tungsten metallic elements or the oxides thereof, or cerium and niobium metallic elements or the oxides thereof.