Development of Liquid-liquid Countercurrent Centrifuge Extractor for Nuclide Separation Application
| Project/Area Number |
21360466
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
TAKESHITA Kenji 東京工業大学, 原子炉工学研究所, 教授 (80282870)
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| Co-Investigator(Kenkyū-buntansha) |
KIKURA Hiroshige 東京工業大学, ソリューション研究機構, 准教授 (00302985)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2011: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2010: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2009: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
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| Keywords | 遠心抽出 / 液々向流 / Taylor-Couette流 / 多段分離 / 分散 / 核種分離 / 流動可視化 / 流動解析 / 油水向流 / 連続抽出 / 軸混合効果 / 超音波パルスドップラー法 / 理論段数 / 微粒化 / セシウム / 発熱性核種 |
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| Research Abstract |
A new liquid-liquid countercurrent extractor with Taylor-Couette flow was proposed and following three research subjects to improve the extraction performance were studied
(1) Increasing the stability of oil-water countercurrent flow
(2) Highly efficient extraction using oil-water emulsion
(3) Scale-up of extractor and feasibility of total extraction process
As a result, we made clear the chemico-physical properties of oil phase, water phase and inner rotor surface, which were required for the formation of suitable countercurrent flow with highly dispersed oil. By stabilizing the Taylor-Couette flow with oil-water emulsion by the addition of a small amount of PEG(poly-ethyleneglycol), the high-speed extraction with high theoretical stages more than 10 stages were attained. Finally the scale-up tests were carried out. By the use of larger extractor, the increase of theoretical stages was observed for the positive extraction and the high recovery rate for the back extraction
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Report
(4 results)
Research Products
(42 results)
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[Presentation] Characteristics of Taylor Vortex on Counter Flow2010
Author(s)
Hideharu TAKAHASHI, Hiroshige KIKURA, Kenji TAKESHITA, Masanori ARITOMI
Organizer
The 5th International Symposium on Advanced Science and Technology in Experimental Mechanics (5th ISEM'10-Kyoto)
Place of Presentation
龍谷大学(京都市下京区)
Year and Date
2010-11-07
Related Report
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