C - Chemistry – Metallurgy – 12 – F
Patent
C - Chemistry, Metallurgy
12
F
C12F 3/00 (2006.01) C12F 3/10 (2006.01)
Patent
CA 2193962
The invention relates to a process for fractioning vinasse, in which process the pH value of the vinasse is lowered by adding acid, and the formed precipitate is separated in order to obtain an inorganic fraction, whereupon an organic fraction remains. The invention also relates to the products obtained. The inorganic fraction mainly contains potassium salt, and it is useful for example as a fertilizer. The organic fraction mainly contains organic acids, and it is useful for example as an additive in animal feed and in producing silage.
L'invention porte sur un procédé de fractionnement des vinasses de betterave, dans lequel on abaisse le pH de la vinasse par adjonction d'un acide et dans lequel le précipité ainsi formé est séparé en extrayant la fraction inorganique et en laissant la partie organique. L'invention porte également sur le produit ainsi obtenu. La fraction inorganique, qui se compose principalement de sels de potassium, peut par exemple servir d'engrais. Quant à la fraction organique, qui se compose principalement d'acides organiques, elle peut servir de complément d'aliments pour le bétail et à l'ensilage.
Lindroos Mirja
Nurmi Juha
Paananen Hannu
Viljava Tapio
Cultor Oy
Danisco Finland Oy
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
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