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:
Dec. 28, 1999
Filed:
Jan. 04, 1999
Applicant:
Inventor:
Gene E Lightner, Federal Way, WA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H / ; C13K / ;
U.S. Cl.
CPC ...
127 37 ;
Abstract
A method to recycle aqueous acidic liquor used to form depolymerized cellulose and hemicellulose accompanying cellulose, contained in biomass, by hydrolysis in the aqueous acidic liquor. Cellulose is dissolved in the aqueous acidic liquor and then remains in place to hydrolyze cellulose to form depolymerized cellulose in the aqueous acidic liquor. The depolymerized cellulose, including dextrins, oligosaccharides, and glucose is substantially separated from the aqueous acidic liquor. The separated aqueous acidic liquor is then recycled to dissolve and hydrolyze additional cellulose to form additional depolymerized cellulose.