Circulation system of solvent extraction database.

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In order to assist the selection of extraction and separation conditions for a variety of metals, the extraction data have been collected from major journals covering the wide fields such as fundamental, analytical, industrial, hydrometallurgical and nuclear fuel process. Not only the constants of related equilibrium, but also industrial data presented in figures and tables are also stored in database as numerical values. SEDATA II data tables are composed of extraction data (EXTIN), name of related compounds (NACOM) and the information on references (LISED). The preceding data base (SEDATA) containing equilibrium constants (about 4500) was associated with the SEDATA II system, and the total numbers of data attains about 20,000. These data have been collected by members of research group, and directly stored through LAN on a file in the work station. Users can quickly access to the SEDATA II through internet (http://www.tut3c.tut.ac.jp/sedata).Outline of SEDATA II was introduced in ISEC'96 (Melbourne) and Solvent Extraction Symposium 1996 (Chiba).