LIQUID-LIQUID CONTACTING TOWER

摘要

PURPOSE:To obtain high contact efficiency by alternately arranging a split flow plate having a liquid passage consisting of plural slits and a baffle plate in such a shape that it covers the passage in the gravitational direction and having a liquid passage in its periphery in a tower and making the opening area ratio of the liquid passage of the baffle plate larger than that of the split flow plate. CONSTITUTION:A heavy liquid is fed from the upper part of a tower 1 and a light liquid is fed from the lower part and both the liquids whose one liquid becomes a dispersed phase and the other becomes a continuous phase are given continuous countercurrent contact in the tower 1. In the liquid-liquid contacting tower 1 of this type, a split flow plate 2 traversing in the tower 1 and horizontally expanding and having a liquid passage 3 consisting of plural slit and/or holes and a baffle plate 4 expanding so that it may cover the liquid passages 3 of the split flow plate 2 in the gravitational direction and having a liquid passage 5 between its periphery and the inner wall of the tower 1 and having a passage opening area ratio larger than that of the split flow plate 2 are alternatively arranged at suitable vertical intervals. Consequently, the dispersed phase is retained by the split flow plates 2 to form a united layer.