Development of new rhodium extraction systems by using synergistic effect and analyses of their separation mechanism
| Project/Area Number |
26289283
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Metal making/Resorce production engineering
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Narita Hirokazu 国立研究開発法人産業技術総合研究所, 環境管理研究部門, 研究グループ長 (60357689)
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| Co-Investigator(Kenkyū-buntansha) |
元川 竜平 国立研究開発法人日本原子力研究開発機構, 量子ビーム応用研究センター, 研究副主幹 (50414579)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000)
Fiscal Year 2016: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2015: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2014: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
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| Keywords | 溶媒抽出 / ロジウム / 協同効果 / 構造解析 / 抽出機構 / 錯体構造 / 廃棄物再資源化 / 反応・分離工学 / 化学工学 / 溶液錯体構造 / アミン / スルフィド |
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| Outline of Final Research Achievements |
In order to develop effective extraction systems for rhodium in hydrochloric acid solution by using a synergistic effect, we investigated the extraction mechanism of rhodium in mixed solvent systems of sulfide-type and amine-type extractants. We analyzed the distribution behavior of rhodium between the organic extractant phase and hydrochloric acid solution, and the structure of the rhodium complexes extracted. As a result, the synergistic effect would stem from neutralization of a rhodium complex anion with the protonated amine-type extractants and substitution of the coordinated water of the rhodium by the sulfide-type extractant.
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Report
(4 results)
Research Products
(9 results)
