Method for separating objective component
AssigneeNittetu Chemical Engineering Ltd.
InventorsYasuhiro Tateishi, Yoichi Shimoi
Life of this patent
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Abstract
A method for separating an objective component from a crude material in a time lagged multi-stage counter flow system, comprising: (a) contacting the crude material with a washing liquid or an extracting reagent in a semi-batch system to form a mixture of the crude material and the washing liquid or extracting reagent; (b) separating the mixture into a recovered liquid containing the objective component and a residue, with the proviso that the mixture is not separated with a separation membrane that is connected to a tank containing the crude material; and repeating (a) and (b) at least once, wherein the concentration of the objective component is successively lower in the washing liquid or extracting reagent contacted with the crude material in each (a).
Claims17
A method for separating an objective component from a crude material in a multistage counter flow system, comprising:
- (a) contacting crude material stored in at least one tank with a washing liquid or an extracting reagent to form a mixture of the crude material and the washing liquid or extracting reagent;
- (b) separating the mixture into a recovered liquid containing the objective component and a residue, with the proviso that the mixture is not separated with a separation membrane that is connected to a tank containing the crude material;
- and
- repeating (a) and (b) at least once, wherein
- the washing liquid or extracting agent in at least first (a) contains the objective component before contact with the crude material;
- and
- the concentration of the objective component is successively lower in the washing liquid or extracting reagent before contact with the crude material in each (a).
Dependencies are inferred from the claim text.