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. 30, 2014
Filed:
May. 29, 2007
Heikki Heikkila, Espoo, FI;
Hannu Koivikko, Kantvik, FI;
Jari Lewandowski, Siuntio, FI;
Mika Manttari, Lappeenranta, FI;
Jari Mattila, Kirkkonummi, FI;
Heikki Heikkila, Espoo, FI;
Hannu Koivikko, Kantvik, FI;
Jari Lewandowski, Siuntio, FI;
Mika Manttari, Lappeenranta, FI;
Jari Mattila, Kirkkonummi, FI;
DuPont Nutritional Biosciences APS, Copenhagen K, DK;
Abstract
The invention relates to an improved nanofiltration process for separating and recovering components, such as sugars and sugar alcohols from multicomponent mixtures. The process of the invention is characterized by collecting the nanofiltration retentate/permeate in several fractions with different purity, optional recycling of at least one of the collected nanofiltration retentate/permeate fractions to the nanofiltration and recovering the desired component from the nanofiltration permeate/retentate fractions by different methods. In one embodiment of the invention, the process comprises a combination of nanofiltration and chromatography.