Appeal No. 2001-0163
Application No. 08/951,502
drawing out a solution rich in the other substances being non-adsorbable
or poorly adsorbable on the particles of polysaccharide derivatives via
the outlet port of another one of the columns;
introducing an eluent into still another one of the columns via the inlet
port thereof;
drawing out a solution rich in the adsorbable or strongly adsorbable
substances via the outlet port of further another one of the columns; and
passing the remaining solution and the eluent through the circuit and
recirculating them,
wherein the position for introducing the eluent, the position for drawing
out the solution containing the adsorbable or strongly adsorbable
substances, the position for introducing the optical isomer mixture and
the position for drawing out the solution containing the non-adsorbable
or weakly adsorbable substances are arranged in the circulation in this
order along the direction of the fluid flow, and the positions are
successively moved in the direction of the fluid flow in the circuit
intermittently.
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Last modified: November 3, 2007