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:
Oct. 14, 2014
Filed:
Sep. 22, 2009
Zuolin Zhu, San Diego, CA (US);
Meg M. Sun, San Diego, CA (US);
Chungao Su, Huaibei, CN;
Hongping YE, Huaibei, CN;
Zuolin Zhu, San Diego, CA (US);
Meg M. Sun, San Diego, CA (US);
Chungao Su, Huaibei, CN;
Hongping Ye, Huaibei, CN;
Sun Pharmaceuticals, Inc., San Diego, CA (US);
Abstract
The invention discloses a technology for producing ester of carboxylic acid using cellulosic biomass as starting material. This technology comprises the following key steps: converting all of the organic polymers, including such high molecular-weight polymers as carbohydrate components and lignin, in cellulosic biomass into water soluble, small molecular organics completely in relatively short time under relatively mild conditions; separating the resultant water soluble compounds containing aromatic rings by adjusting the acidity/basicity of the reaction solution or by using adsorption resin; and converting the water soluble compounds containing aromatic rings into ester of carboxylic acid by hydrogenation and esterification in a corresponding alcohol solution.