| 摘要 |
<p>PURPOSE:To fractionate efficiently each component having each desired org. group from a mixture fed to an extraction tower by constituting the extraction tower of multistage exchanging zones arranged in a height direction, providing each heating device to each exchanging zone or the tower, thus permitting the temp. of each exchanging zone to be regulated at individually optional temp. CONSTITUTION:An extraction tower 10 in an apparatus for concentrating and fractionating constituting components of a mixture is constituted of multistage exchanging zones 10a, 10b, 10c, 10d, etc., arranged in a height direction, and the temp. of each exchanging zone is regulated to each optional temp. by providing a heating device to each zone. Accordingly, the temp. control in the extraction tower 10 can be performed with higher precision in this concentration fractionation apparatus than conventional apparatuses, taking positional factors into consideration. Moreover, since solute components and extraction residue components are both subjected to repetitive tractionation and reflux, target components are obtd. at sufficiently concentrated state as compared to conventional apparatuses.</p> |
