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This study presents two designs for a seven-zone SMB (Simulated Moving Bed) and the procedures for establishing the operating conditions for the direct separation of IRC (intermediate retention component) from a feedstock with VSRC (very strong retention component). Normally, the crude extract from natural products or fermented liquid can rarely be directly applied as the feedstock for continuous...
A mixture of Di-(2-ethylhexyl) phosphoric acid (D2EPHA) and n-hexane or methanol is used as the extractant solution for extracting cobalt from activated carbon using supercritical carbon dioxide extraction technology. In this work, a semi-continuous pilot unit of SFE is employed to conduct the extraction. In order to feed the viscous extractant by HPLC pump, n-hexane or methanol is added as a diluent...
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