发明名称 |
Process and device for separation with variable-length |
摘要 |
A process for separating at least one component of a mixture in a set of closed-loop chromatographic columns is described, whereby the loop comprises at least one feedstock injection point, a raffinate draw-off point, an eluant injection point, and an extract draw-off point, in which a determination is made between an injection point and a draw-off point or vice-versa a chromatographic zone, and at the end of a given period of time, all of the injection and draw-off points are shifted by one column or column section in a given direction that is defined relative to that of the flow of a main fluid that circulates through the loop. During the period, the shifting of different injection and draw-off points of a column or column section is done at different times in such a way that the lengths of the zones that are defined by said different points are variable. The process is useful for the seperation particularly of stereoisumers for pharmaceuticals.
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申请公布号 |
US6136198(A) |
申请公布日期 |
2000.10.24 |
申请号 |
US19980208765 |
申请日期 |
1998.12.10 |
申请人 |
INSTITUT FRANCAIS DU PETROLE;NOVASEP |
发明人 |
ADAM, PHILIPPE;NICOUD, ROGER NARC;BAILLY, MICHEL;LUDEMANN-HOMBOURGER, OLIVIER |
分类号 |
G01N30/46;B01D15/08;B01D15/18;C07B57/00;C07B63/00;C07C33/025;C07C33/34;G01N30/02;G01N30/88;(IPC1-7):B01D15/08 |
主分类号 |
G01N30/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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