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. 31, 2016
Filed:
Mar. 23, 2010
Mickel Leonardus August Jansen, The Hague, NL;
Maarten Job Van DE Graaf, Zoetermeer, NL;
René Verwaal, Nootdorp, NL;
Mickel Leonardus August Jansen, The Hague, NL;
Maarten Job Van de Graaf, Zoetermeer, NL;
René Verwaal, Nootdorp, NL;
DSM IP ASSETS B.V., Heerlen, NL;
Abstract
The present invention relates to a process for the production of a dicarboxylic acid and ethanol which comprises fermenting a genetically modified yeast in a suitable fermentation medium under anaerobic conditions at a pH value of between 1 and 5 and producing the dicarboxylic acid and ethanol. The invention also relates to a process for crystallizing succinic acid from an aqueous solution having a pH of between 1 and 5 and comprising succinic acid, comprising removing part of the aqueous solution by evaporation to obtain a concentrated solution, and bringing the temperature of the concentrated solution to a value of between 10 and 30 degrees Celsius, wherein succinic acid crystals are formed.