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:
May. 04, 1976
Filed:
Nov. 13, 1974
Applicant:
Inventor:
Hermann Friese, Berlin, DT;
Assignee:
Sud-Chemie A.G., Munich, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C13K / ;
U.S. Cl.
CPC ...
127 37 ; 2601 / ; 2606 / ;
Abstract
A process for the hydrolysis of deciduous wood wherein the hydrolysis is carried out in a first stage with an alkali metal hydroxide solution of concentration less than 4 percent by weight and in a second stage with mineral acid. A resulting product, D-(+)-xylose, can be recovered as such or converted directly to xylitol. The process also provides for the convenient recovery of lignin and cellulose present in the wood.