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:
Aug. 26, 2014
Filed:
Apr. 26, 2007
Jyrki Kuusisto, Vantaa, FI;
Heikki Heikkilä, Espoo, FI;
Matti Tylli, Kantvik, FI;
Martin Golde, Joensuu, FI;
Teppo Riihimäki, Pori, FI;
Jyrki Kuusisto, Vantaa, FI;
Heikki Heikkilä, Espoo, FI;
Matti Tylli, Kantvik, FI;
Martin Golde, Joensuu, FI;
Teppo Riihimäki, Pori, FI;
Schott Solar AG, Alzenau, DE;
Dupont Nutrition Biosciences Aps, Copenhagen K, DK;
Abstract
The invention relates to an improved process for the production of a sugar alcohol from the corresponding sugar through catalytic hydrogenation. Especially, the invention relates to a process for reducing the interference of sugar-derived aldonic acids in the hydrogenation process by adjusting the hydrogenation conditions so that the activity of the catalyst is maintained. In one embodiment of the invention, the process of the invention is carried out by adjusting the hydrogenation temperature by starting the hydrogenation at a lower temperature and then gradually rising the temperature to the final hydrogenation temperature. In another embodiment of the invention, the process of the invention is carried out by adding small-molecular monocarboxylic acids to the hydrogenation solution.