鹽酸溶液에서 Tri 2-Ethylhexyl Amine(TEHA)에 의한 백금과 로듐의 分離
Separation of Platinum(IV) and Rhodium(III) from Acidic Chloride Solution by Solvent Extraction with Tri 2-Ethylhexyl Amine(TEHA)
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
TEHA와TEHA 및TBP와 LIX63과의 혼합용매를 사용하여 염산용액으로부터 백금과 로듐을 분리하기 위한 용맥추출실험을 수행하였다. 염산농도 1-9 M 범위에서 추출제의 농도에 따른 두 금속의 추출거동과 분리 가능성을 조사하였다. 혼합용액에서 백금과 로듐의 농도는 각각1 × 10-3 M과 2 × 10-4 M로 조절하였다. TEHA와 혼합추출제에 의한 추출시 로듐의 추출율은 추출조건에 의존하나, 백금은 염산농도와 무관하게 모두 추출되었다. 혼합용액에서 염산농도가 낮을 경우 로듐이 추출되지 않아 백금과 로듐의 분리가 가능하였다. LIX63을 첨가한 TEHA는 로듐의 추출율을 향상시켰으나, TBP를 첨가한 TEHA는 두 금속의 추출에 거의 영향을 미치지 않았다.
Abstract
Solvent extraction experiments were performed to separate platinum and rhodium from mixed chloride solution by using tri 2-ethylhexyl amine (TEHA) and its mixture with TBP and LIX 63. Effects of extraction conditions on the separation of the two metals were investigated as a function of extractant concentration in the HCl concentration range from 1 to 9 M. The concentration of Pt (IV) and Rh(III) was controlled to 1 × 10-3 M and 2 × 10-4 M, respectively. In the extraction with TEHA and its mixture, Pt was quantitatively extracted irrespective of HCl concentration, while the extraction percentage of Rh depended on the extraction condition. When the concentration of HCl in the mixed solution was low, the extraction of Rh was nil and separation of Pt and Rh was possible. Adding TBP to TEHA had little effect on the extraction of both metals, while adding LIX63 to TEHA favored the extraction of Rh.
참고문헌 (19)
- Attasak Jaree, "Separation of concentrated platinum(IV) and rhodium(III) in acidic chloride solution via liquid–liquid extraction using tri-octylamine", Journal of Industrial and Engineering Chemistry, 17(2), pp.243~247 (2011), 한국공업화학회
- National research council, "Minerals, critical minerals, and the U.S. economy", pp.137~147 (2008), National Academies Press
- 이만승, "溶液에서 白金族 金屬의 化學的 特性 및 溶解技術", 자원리싸이클링, 19(5), pp.3~12 (2010), 한국자원리싸이클링학회
- Benguerel, E., "Speciation and separation of rhodium (III) from chloride solutions: a critical review", Hydrometallurgy, 40, pp.135~152 (1996)
- Kumar, J. R., "Comparison of liquid-liquid extraction studies on platinum (IV) from acidic solutions using bis (2, 4, 4- trimethylpentyl) monothiophosphinic acid", Sep. Purif. Technol, 63, pp.184~190 (2008)
- Mhaske, A. A., "Extraction separation studies of Rh, Pt and Pd using Cyanex 921 in toluene-a possible application to recovery from spent catalysts", Hydrometallurgy, 61, pp.143~150 (2001)
- Jin-Young Lee, "Extraction and separation of Pt(IV)", Rh(III) from acidic chloride solutions using Aliquat 336, 2009, pp.15(3), 359~364[DOI]
- Lee, J. Y., "Liquid-liquid extraction", separation of platinum (IV) and rhodium (III) from acidic chloride solutions using tri-iso-octylamine, 2009, pp.168, 424~429
- Nowottny, C., "Recovery of platinum, palladium and rhodium from industrial process leaching solutions by reactive extraction", Sep. Purif. Technol, 12, pp.135~144 (1997)
- Panpan Sun, "Separation of Rh(III) from the Mixed Chloride Solutions Containing Pt(IV) and Pd(II) by Extraction with Alamine336", Bulletin of the Korean Chemical Society, 31(7), pp.1945~1950 (2010), 대한화학회
- Shen, S., "Adsorption of Rh (III) complexes from chloride solutions obtained by leaching chlorinated spent automotive catalyst on ion-exchange resin Diaion WA21J", J. Hazard. Mater, 179, pp.104~112 (2010)
- Sun, P.P, "Separation of Pt(IV) and Rh(III) from acidic Chloride Solution by ion exchange with anion resins", Hydrometallurgy, 113-114, pp.200~204 (2012)
- Kononova, O.N., "Simultaneous sorption recovery of platinum and rhodium from sulfate-chloride solutions", Hydrometallurgy, 117-118, pp.101~107 (2012)
- Sun, P. P., "Separation of Pt(IV) and Rh(III) from Chloride Solution by solvent extraction with amine and neutral extractants", Mater. Trans, 52, pp.2071~2076 (2011)
- Eyal, A. M., "Recovery and concentration of strong mineral acids from dilute solutions through LLX. II. Reversible extraction with branchedchain amines", Solvent Extr. Ion Exch., 9(2), pp.211~222 (1991)
- Banda, R., "Recovery of HCl from chloride leach solution of spent HDS catalyst by solvent extraction", Chem. Process Eng, 34(1), pp.153~163 (2013)
- Bassett, J., "Vogel’s textbook of quantitative inorganic analysis", pp.36~37 (1978), Longman
- Haghshenas, D.F., "A comparison between TEHA and Cyanex 923 on the separation and the recovery of sulfuric acid from aqueous solutions", Hydrometallurgy, 97, pp.173~179 (2009)
- Levitin, G., "Solvent extraction of rhodium chloride from aqueous solutions and its separation from palladium and platinum", Reactive & Functional Polymers, 54, pp.149~154 (2003)