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Naganawa, Hirochika
Bunseki Kagaku, 66(11), p.797 - 808, 2017/11
Times Cited Count：6 Percentile：22.86(Chemistry, Analytical)A new liquid-liquid extraction method, called the emulsion-flow method, has recently been developed at Japan Atomic Energy Agency (JAEA). The emulsion-flow method, where low cost, simplicity, high efficiency, compactness, safety, and eco-friendly go together, has attracted attention, and has been expected to bring innovation to liquid-liquid extraction technologies. Compared with conventional industrial apparatuses, an emulsion-flow apparatus successfully combines the lowest cost superior to a spray column and the highest performance (the highest efficiency and the highest processing speed) comparable to a centrifugal extractor. Furthermore, the emulsion-flow method can also be used for collecting particulate components by utilizing their aggregation onto a liquid-liquid interface and for purifying water polluted by oil with its remarkable phase-separating ability.
Koga, Jiro*; Shinzato, Takushi*
JNC TJ8400 2000-054, 48 Pages, 2000/02
JNC-TJ8400-2000-054.pdf:1.23MB
The "STELLA" which is a tool for simulation of dynamical systems applied to the numerical simulation of the behavior of minor constituent, such as hydrazoic acid, forming and extinguishing on the operation of reprocessing process. The concentration of hydrazoic acid forming by the reaction of nitrite and hydrazine were determined by use of STELLA after the determination of concentration of main constituents by MIXSET-X. The results from simulation is shown that the STELLA is applicable to the numerical simulation of the behavior of minor constituent.
Naganawa, Hirochika; Nagano, Tetsushi; Yanase, Nobuyuki*
no journal, ,
A new liquid-liquid extraction apparatus, named, emulsion-flow extractor, where low cost, simplicity, compactness, high processing speed, high efficiency, and safety go together, is introduced. The emulsion-flow technique can actualize very efficient liquid-liquid extraction with its high two-phase mixing ability to an emulsion by spraying micrometer-sized oil droplets into a counter-current aqueous solution. Meanwhile, this technology can also actualize more than tenfold processing speed in its very rapid phase separation and less than one fifth cost with its very simple structure workable by only solution sending in comparison with mixer-settler that is the most popular industrial liquid-liquid extraction technique. In addition, the emulsion-flow extractor having no drive part in its main body has less trouble and is safer than the conventional extractor.
