C - Chemistry – Metallurgy – 12 – P
Patent
C - Chemistry, Metallurgy
12
P
C12P 7/18 (2006.01)
Patent
CA 2610777
A process for preparing 1,3-propanediol, including: the crude glycerine as the by-product of the biological diesel oil was used as the substrate of the fermenting process of the 1,3-propanediol, which did not need the further treatment; the producing bacteria of the 1,3-propanediol were inoculated into the seed culture medium containing the crude glycerine as the by-product of the biological diesel oil to cultivate; and the seed culture was added into the initial fermenting medium containing the crude glycerine as the by-product of the biological diesel oil to ferment; the pH was controlled between 6.8 and 8.0, and at the end of the fermentation 1,3-propanediol was obtained by separating and extracting from the medium.
L~invention concerne un procédé permettant de préparer le propanédiol-1,3 et comprenant les étapes suivantes : la glycérine brute en tant que sous-produit du carburant diesel biologique est utilisée en tant que substrat lors du processus de fermentation du propanédiol-1,3 qui ne nécessite pas de traitement ultérieur ; les bactéries produisant le propanédiol-1,3 sont inoculées dans le milieu de culture de graines qui contient de la glycérine brute en tant que sous-produit du carburant diesel biologique à cultiver ; et la culture de graines est ajoutée dans le milieu de fermentation initial qui contient la glycérine brute en tant que sous-produit du carburant diesel biologique à fermenter ; le pH est maintenu à une valeur située entre 6,0 et 8,0 et la fin de la fermentation du propanédiol-1,3 est obtenue en le séparant et en l~extrayant du milieu.
Hao Jian
Lin Rihui
Liu Dehua
Liu Hongjuan
Hill & Schumacher
Tsinghua University
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