Method for fractionating a solution
AssigneeXyrofin Oy
InventorsHeikki Heikkila, Jarmo Kuisma, Hannu Paananen
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Abstract
The invention relates to a method for fractionating a solution by a chromatographic simulated moving bed method in which the liquid flow is effected in a system comprising at least two sectional beds in different ionic forms. The fractions enriched with different components are recovered during a multi-step sequence including the following operations, i.e., phases: feeding phase, eluting phase, and recycling phase. The liquid present in the sectional packing material beds with its dry solids concentration profile is recycled during the recycling phase in a loop comprising one, two, or more sectional packing material beds. The method can be employed for the following examples, fractionating sulphite cooking liquor, molasses, and vinasse.
Claims33
A method for fractionating a solution by a chromatographic separation method in which the liquid flow is effected in a system comprising at least two chromatographic sectional packing material beds, characterized in that the system comprises at least two sectional packing material beds in different ionic forms, and the fractionation is performed by the simulated moving bed method, and the solution is passed from a sectional packing material bed to the next sectional packing material bed having a different ionic form in such a way that the dry solids concentration profile present in the solution remains substantially intact.
Dependencies are inferred from the claim text.