Process for clarifying vinasse
AssigneeCultor Ltd.
InventorsHannu Paananen, Mirja Lindroos, Tapio Viljava, Pertti Walliander
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Abstract
The invention relates to a process for preparing vinasse suitable for a column process, in which process dilute vinasse is clarified by means of a high-efficiency centrifuge, after which the vinasse is concentrated and potassium is removed. The invention also relates to the vinasse and the potassium sulphate crystals prepared with the above-described process.
Claims12
A process for pretreating vinasse for use in a subsequent chromatography process, comprising clarifying dilute vinasse containing potassium salts in solution and insoluble solids having an insoluble dry solids content of below 35 wt. % utilizing a clarifier centrifuge whereby at least 90% of said insoluble solids is removed therefrom, concentrating the clarified vinasse to a dry solids content to about 50 to about 80 weight %;
- and removing potassium in the form of a potassium salt therefrom.
Dependencies are inferred from the claim text.