Patent ID: 7488420
Filing Date: 2009-02-10
Classification: B01D,C07H,G01N

Abstract:
1. A chromatographic separator to be operated in a circulation system, said chromatographic separator comprising a plurality of unit packed columns, each of said unit packed columns being packed with an adsorbent exhibiting a selective adsorbability for a specified component in a feed solution containing at least two components, said plurality of unit packed columns are connected in series by pipes and a most downstream-side unit packed column is connected to a most upstream-side unit packed column to form an endless circulation system forming a packed bed as a whole, and adsorption zones are separated in order with respect to affinity relative to an adsorbent, said chromatographic separator further comprises a feed solution supply pump and an eluent supply pump for respectively supplying said feed solution and said eluent into the circulation system, wherein said chromatographic separator is arranged such that the total quantity of liquid to be extracted is extracted from one position in said circulation system by the same quantity as that of liquid supplied into said circulation system, said chromatographic separator further comprises a plurality of valves, one of said plurality of valves being disposed between each of said unit packed columns and at least one of said eluent supply pump and said feed solution supply pump.