发明名称 |
Method for separating and recovering objective component |
摘要 |
A method for separating and recovering an objective component from a crude liquid by a membrane in a semi-batch system, includes the steps of: at least two stages of adding a washing liquid to the crude liquid stored in a container and mixing the washing liquid with the crude liquid to form a mixture of the crude liquid and the washing liquid, wherein successive ones of the at least two stages are separated by a time lag, wherein the successive ones use washing liquids at different concentrations, in descending order, of the objective component concentration, and further wherein a last one of the plural stages uses only a washing liquid having essentially a zero concentration of the objective component; and for each of the plural stages, performing a step of membrane treatment of the mixture to transfer the objective component from the crude liquid to a permeated liquid. <IMAGE> |
申请公布号 |
EP0838256(A3) |
申请公布日期 |
1998.08.12 |
申请号 |
EP19970308227 |
申请日期 |
1997.10.16 |
申请人 |
NITTETU CHEMICAL ENGINEERING LTD.;AJINOMOTO CO., INC. |
发明人 |
SHIMOI, YOICHI;TAMURA, HIDEO;OKAZAKI, MASAOMI;SUGANUMA, TAKAO |
分类号 |
C12P1/00;B01D61/02;B01D61/14;B01D65/02 |
主分类号 |
C12P1/00 |
代理机构 |
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主权项 |
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地址 |
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