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. 02, 2014
Filed:
Sep. 12, 2012
Helene Belanger, Auckland, NZ;
Ross L. Prestidge, Auckland, NZ;
Tony James Lough, Auckland, NZ;
James D. Watson, Auckland, NZ;
Jia-long Yao, Auckland, NZ;
Clare Elton, Auckland, NZ;
Alan Macfarlane, Auckland, NZ;
Mohammed Mehdi Farid, Auckland, NZ;
John Chen, Auckland, NZ;
Helene Belanger, Auckland, NZ;
Ross L. Prestidge, Auckland, NZ;
Tony James Lough, Auckland, NZ;
James D. Watson, Auckland, NZ;
Jia-Long Yao, Auckland, NZ;
Clare Elton, Auckland, NZ;
Alan MacFarlane, Auckland, NZ;
Mohammed Mehdi Farid, Auckland, NZ;
John Chen, Auckland, NZ;
Vertichem Corporation, Cambridge, Ontario, CA;
Abstract
In one aspect, a process for treating woody plant material is provided, the process involving contacting the plant material with a continuous flow of an aqueous ethanol solution at elevated temperature and pressure under conditions that promote extraction of ethanol-soluble lignin from the plant material and retention of hemicellulose sugars, xylose and cellulose in the treated plant material solids. In another aspect, a process for extracting hemicellulose sugars from lignin-depleted plant material solids is provided, the process involving contacting lignin-depleted plant material with water at elevated temperature and pressure under conditions that promote extraction of hemicellulose sugars from the plant material; and recovering hemicellulose sugars from the liquid mixture.