Production of a fermentation product

Details Production of a fermentation product Production of a fermentation product

C - Chemistry, Metallurgy

02

F

C02F 1/56 (2006.01)

Patent

CA 2552926

A process of separating suspended solids from a fermentation liquor by subjecting the liquor to a solids-liquid separation stage, wherein the fermentation liquor is produced in a fermentation process for the production of a fermentation product, and which liquor comprises lignin, wherein the solids-liquid separation stage is assisted by a treatment system, characterised in that the treatment system comprises an anionic polymer, with the proviso that the treatment system and does not include a cationic polymer having an intrinsic viscosity (IV) of at least 4 dl/g.

La présente invention a trait à un procédé de séparation de solides suspendus à partir d'une liqueur de fermentation en soumettant la liqueur à une étape de séparation solides/liquide, dans lequel la liqueur de fermentation est produite dans un procédé de fermentation pour la production d'un produit de fermentation, et ladite liqueur comportant de la lignine, dans lequel l'étape de séparation solides/liquide est assistée par un système de traitement. L'invention se caractérise en ce que le système de traitement comporte un polymère anionique, à la condition que le système de traitement ne comprend pas un polymère cationique présentant une viscosité intrinsèque (IV) d'au moins 4dl/g.

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