Patents by Inventor Fredoen VALIANPOER

Fredoen VALIANPOER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PROCESS FOR THE CRYSTALLIZATION OF SUCCINIC ACID
    Publication number: 20150057425
    Abstract: The present invention relates to a process for recovering succinic acid in crystal form from a fermentation broth comprising succinic acid, comprising the steps of a) bringing the fermentation broth to a pH of between 1 and 4, b) crystallizing the succinic acid from the fermentation broth to form succinic acid crystals, c) dissolving the succinic acid crystals at a temperature of between 30 and 90 degrees Celsius to form an aqueous solution comprising dissolved succinic acid, d) crystallizing the succinic acid from the solution to recover succinic acid in crystal form. The invention further relates to succinic acid in crystal form, comprising a sugar content of 1 to 100 ppm and a nitrogen content of 1 to 80 ppm.
    Type: Application
    Filed: October 30, 2014
    Publication date: February 26, 2015
    Inventors: Maarten Job VAN DE GRAAF, Fredoen VALIANPOER, Guillaume FIEY, Loic DELATTRE, Elisabeth Agnes Michele SCHULTEN