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. 14, 1999
Filed:
May. 05, 1998
Applicant:
Inventors:
Juha Nurmi, Pinjainen, FI;
Olli-Pekka Eroma, Kotka, FI;
Assignee:
Xyrofin Oy, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12K / ; C13F / ; B01D / ;
U.S. Cl.
CPC ...
127 61 ; 127 60 ;
Abstract
The invention relates to a method for the recovery of xylose from xylose-containing aqueous solutions that contain over 30% by weight of xylose on dissolved dry solids. The solution is evaporated at low pressure to a solution supersaturated in respect of xylose, the solution is seeded, and the evaporation is continued at the boiling point of the solution until a crystal mass is obtained in which the xylose yield is 1 to 60%, and the xylose crystals are recovered.