금과 은은 귀금속으로 첨단소재를 제조하는데 사용된다. 용매추출은 다양한 침출용액으로 부터 순수한 금과 은을 회수할 수 있는 중요한 공정이다. 본 논문에서는 cyanide, thiocyanate, thiosulfate, thiourea과 염산용액에서 금(I, III)과 은(I)의 용액화학 및 용매추출에 의한 분리를 고찰했다. 여러 단독 및 혼합추출제에 의한 금(I, III)과 은(I)의 용매추출 및 분리거동을 각 침출용액에서 추출반응과 추출제의 선택도를 토대로 비교했다. 염산용액이 용매추출에 의한 금과 은의 분리의 효율측면에서 적당하다.
금과 은은 귀금속으로 첨단소재를 제조하는데 사용된다. 용매추출은 다양한 침출용액으로 부터 순수한 금과 은을 회수할 수 있는 중요한 공정이다. 본 논문에서는 cyanide, thiocyanate, thiosulfate, thiourea과 염산용액에서 금(I, III)과 은(I)의 용액화학 및 용매추출에 의한 분리를 고찰했다. 여러 단독 및 혼합추출제에 의한 금(I, III)과 은(I)의 용매추출 및 분리거동을 각 침출용액에서 추출반응과 추출제의 선택도를 토대로 비교했다. 염산용액이 용매추출에 의한 금과 은의 분리의 효율측면에서 적당하다.
Solvent extraction is an important process to recover pure gold and silver from various leaching solutions. The present work reviews the aqueous chemistry and solvent extraction separation of gold (I, III) and silver (I) from several leaching systems such as cyanide, thiocyanate, thiosulfate, thiour...
Solvent extraction is an important process to recover pure gold and silver from various leaching solutions. The present work reviews the aqueous chemistry and solvent extraction separation of gold (I, III) and silver (I) from several leaching systems such as cyanide, thiocyanate, thiosulfate, thiourea and chloride medium. The extraction and separation behavior of gold (I, III) and silver (I) by various single and mixtures was compared on the basis of extraction reaction and the selectivity from these mediums. The chloride medium is recommended for the separation of gold and silver by solvent extraction in terms of extraction and stripping efficiency.
Solvent extraction is an important process to recover pure gold and silver from various leaching solutions. The present work reviews the aqueous chemistry and solvent extraction separation of gold (I, III) and silver (I) from several leaching systems such as cyanide, thiocyanate, thiosulfate, thiourea and chloride medium. The extraction and separation behavior of gold (I, III) and silver (I) by various single and mixtures was compared on the basis of extraction reaction and the selectivity from these mediums. The chloride medium is recommended for the separation of gold and silver by solvent extraction in terms of extraction and stripping efficiency.
* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.
문제 정의
This review is aiming to summarize the solvent extraction process for the separation of gold and silver in different aqueous media. The reaction details and separation efficiency of several proposed processes have been reviewed.
가설 설정
1) In the cyanide systems, the complexes of Au(I) and Ag(I) are the main species. Owing to the toxicity of cyanide, the extraction and separation behavior of Au(I) and Ag(I) was investigated by using solvating extractants but the selectivity for gold and silver is low.
3) In strong hydrochloric acid solution, the stable complex of Au(III) is AuCl4−, while Ag has low solubility but the nature of Ag(I) complex depends on the concentration of chloride ion.
참고문헌 (64)
Jones, Llewellyn H. and Penneman, Robert A., 1954 : Infrared absorption studies of aqueous complex ions: I. cyanide complexes of Ag(I) and Au(I) in aqueous solution and adsorbed on anion resin. The Journal of Chemical Physics, 22(6), pp965-970.
Al-Bazi, S. J. and Chow, A., 1984 : Platinum metals-solution chemistry and separation methods (ion-exchange and solvent extraction). Talanta, 31(10A), pp815-836.
Tsuchida, N. and Muir, D. M., 1986 : Studies on role of oxygen in the adsorption of Au(CN) and Ag(CN) - onto activated carbon. Metallurgical and Materials Transactions B, 17B, pp529-533.
O'Malley, Glen Peter, 2002 : Recovery of gold from thiosulfate solutions and pulps with anion-exchange resins. Murdoch University.
Sun, Changmei, Zhang, Guanghua, Wang, Chunhua, Qu, Rongjun, Zhang, Ying, and Gu, Quanyun, 2011 : A resin with high adsorption selectivity for Au (III): Preparation, characterization and adsorption properties. Chemical Engineering Journal, 172(2-3), pp713-720.
Ramesh, A., Hasegawa, H., Sugimoto, W., Maki, T., and Ueda, K., 2008 : Adsorption of gold(III), platinum(IV) and palladium(II) onto glycine modified crosslinked chitosan resin. Bioresource Technology, 99(9), pp3801-3809.
Stofkova, M. and Stofko, M., 2002 : Ion exchange resin use for Au and Ag separation from diluted solution of thiourea. Metalurgijia, 41(33), pp33-36.
Xie, Feng, Lu, Diankun, Hongying Yang, and Dreisinger, David, 2013 : Solvent extraction of silver and gold from alkaline cyanide solution with LIX 7950. Mineral Processing and Extractive Metallurgy Review: An International Journal, 35(4), pp229-238.
Wei, Wei, Cho, Chul-Woong, Kim, Sok, Song, Myung-Hee, Bediako, John Kwame, and Yun, Yeoung-Sang, 2016 : Selective recovery of Au(III), Pt(IV), and Pd(II) from aqueous solutions by liquid-liquid extraction using ionic liquid Aliquat-336. Journal of Molecular Liquids, 216, pp18-24.
Mowafy, E. A. and Mohamed, D., 2016 : Extraction and separation of gold(III) from hydrochloric acid solutions using long chain structurally tailored monoamides. Separation and Purification Technology, 167, pp146-153.
Petrova, A. M., Nikolaev, A. E., and Kasikov, A. G., 2014 : Extraction of gold(III) from hydrochloric acid solutions with high-molecular aliphatic alcohols. Russian Journal of Applied Chemistry, 87(2), pp234-240.
Mpinga, C. N., Bradshaw, S. M., Akdogan, G., Snyders, C. A., and Eksteen, J. J., 2014 : The extraction of Pt, Pd and Au from an alkaline cyanide simulated heap leachate by granular activated carbon. Minerals Engineering, 55, pp11-17.
Lekka, M., Masavetas, I., Benedetti, A. V., Moutsatsou, A., and Fedrizzi, L., 2015 : Gold recovery from waste electrical and electronic equipment by electrodeposition: A feasibility study. Hydrometallurgy, 157, pp97-106.
Zhang, Suchun and Nicol, M. J., 2005 : An electrochemical study of the dissolution of gold in thiosulfate solutions. Part II. Effect of Copper. Journal of Applied Electrochemistry, 35(3), pp339-345.
Barbosa, L. A. D., Sobral, L. G. S., and Dutra, A. J. B., 2001 : Gold electrowinning from diluted cyanide liquors: performance evaluation of different reaction systems. Mineral Engineering, 14(9), pp963-974.
Cellier, Caroline, Demoulin, Olivier, Salamone, Carmelo, Navez, Michael, and Ruiz, Patricio, 2006 : Towards More Gold and Less Chlorine on the Support During the Deposition-Precipitation of Gold. Studies in Surface Science and Catalysis, 162, pp545-552.
Yoshimura, Akihiro, Takai, Madoka, and Matsuno, Yasunari, 2014 : Novel process for recycling gold from secondary sources: Leaching of gold by dimethyl sulfoxide solutions containing copper bromide and precipitation with water. Hydrometallurgy, 149, pp177-182.
Marsden, John O., and House, C. Lain, The Chemistry of Gold Extraction. Second ed.; Society for Mining, Metallurgy, and Exploration, Inc.: USA, 2009.
Yannopoulos, J. C., The Extractive Metallurgy of Gold. Van Nostrand Reinhold: New York, 1991.
Walkowiak, W. and Grieves, R. B., 1976 : Foam fractionation of cyanide complex anions of Zn (II), Cd (II), Hg (II) and Au (III). Journal of Inorganic and Nuclear Chemistry, 38, pp1351-1356.
Li, Jinshan, Safarzadeh, M. Sadegh, Moats, Michael S., Miller, Jan D., LeVier, K. Marc, Dietrich, Meg, and Wan, Rong Yu, 2012 : Thiocyanate hydrometallurgy for the recovery of gold. Part I: Chemical and thermodynamic considerations. Hydrometallurgy, 113-114, pp1-9.
Hancock, R. D., Finkelstein, N. P., and Evers, A., 1972 : Stabilities of the cyanide complexes of the monovalent group IB metal ions in aqueous solution. Journal of Inorganic and Nuclear Chemistry, 34, pp3747-3751.
Xu, Bin, Yang, Yongbin, Li, Qian, Yin, Wei, Jiang, Tao, and Li, Guanghui, 2016 : Thiosulfate leaching of Au, Ag and Pd from a high Sn, Pb and Sb bearing decopperized anode slime. Hydrometallurgy, 164, pp278-287.
Aylmore, M. G., 2016 : Thiosulfate as an Alternative Lixiviant to Cyanide for Gold Ores. Gold Ore Processing, pp485-523.
Ha, Vinh Hung, Lee, Jaechun, Jeong, Jinki, Hai, Huynh Trung, Jha, Manis K., 2010 : Thiosulfate leaching of gold from waste mobile phones. Journal of hazardous materials, 178(1-3), pp1115-1119.
Li, Jinshan and Miller, Jan D., 2006 : A Review of Gold Leaching in Acid Thiourea Solutions. Mineral Processing and Extractive Metallurgy Review, 27(3), pp177-214.
Webster, J. G., 1986 : The solubility of gold and silver in the system Au-Ag-S-02-Hz0 at $25^{\circ}C$ and 1 atm. Geochimica et Cosmochimica Acta, 50, pp1837-1845.
Arima, Harunobu, Fujita, Toyohisa, and Yen, Wan-Tai, 2004 : Using nickel as a catalyst in ammonium thiosulfate leaching for gold extraction. Materials Transactions, 45(2), pp516-526.
Grosse, Andrew C., Dicinoski, Greg W., Shaw, Matthew J., and Haddad, Paul R., 2003 : Leaching and recovery of gold using ammoniacal thiosulfate leach liquors (a review). Hydrometallurgy, 69(1-3), pp1-21.
Brent Hiskey, J. and Atluri, V. P., 2007 : Dissolution chemistry of gold and silver in different lixiviants. Mineral Processing and Extractive Metallurgy Review, 4(1-2), pp95-134.
Arroyo, Z. Gamino, Stambouli, M., Pareau, D., Buch, A., Durand, G., and Rodriguez, M. Avila, 2008 : Thiosubstituted organophosphorus acids as selective extractants for Ag(I) from acidic thiourea solutions. Solvent Extraction and Ion Exchange, 26(2), pp128-144.
Ficeriova, Jana, Balaz, Peter, Dutkova, Erika, Gock, Eberhard, 2008 : Leaching of gold and silver from crushed Au-Ag wastes. The Open Chemical Engineering Journal, 2, pp6-9.
Li, Jingying, Xu, Xiuli, and Liu, Wenquan, 2012 : Thiourea leaching gold and silver from the printed circuit boards of waste mobile phones. Waste Management, 32(6), pp1209-1212.
Jianmin, Yu, Solvent Extraction Chemistry of Precious Metals. Beijing, 2004.
Jonte, J. Haworth, Don S. Martin, Jr, 1952 : The solubility of silver chloride and the formation of complexes in chloride solution. Journal of The American Chemical Society, 74, pp2052-2054.
Forbes, George Shannon, 1911 : The solubility of silver chloride in chloride solutions and the existence of complex argentichloride ions. Journal of the American Chemical Society, 33(12), pp1937-1946.
Alam, M. Shafiqul, Inoue, K., Yoshizuka, K., Dong, Y., and Zhang, P., 1997 : Solvent extraction of silver from chloride media with some commercial sulfur-containing extractants. Hydrometallurgy, 44, pp245-254.
Xing, Weidong, Lee, Kiwoog, and Lee, Manseung, 2017 : Leaching of gold and silver from anode slime with inorganic reagents. Journal of Korea Institute of Resources Recycling, 26(1), pp1-18.
Luehrs, Dean C., Iwamoto, Reynold T., and Kleinberg, Jacob, 1965 : Solubility of silver halides and stability of silver halide complexes in selected nonaqueous media. Inorg. Chem., 5(2), pp201-204.
Riveros, P. A., 1990 : Studies on the solvent extraction of gold from cyanide media. Hydrometallurgy, 24, pp135-156.
Kordosky, G. A., Sierakoski, J. M., Virnig, M. J., and Mattisonb, P. L., 1992 : Gold solvent extraction from typical cyanide leach solutions. Hydrometallurgy, 30, pp291-305.
Sanuki, Sumiko, Jyumonji, Makoto, and Majima, Hiroshi, 2000 : Extraction of Ag (I) from aqueous thiocyanate solution with Primene JMT or TOA. Hydrometallurgy, 55, pp119-136.
Alguacil, F. J. and Caravaca, C., 1996 : Synergistic extraction of gold(I) cyanide with the primary amine Primene JMT and the phosphine oxide Cyanex 921. Hydrometallurgy, 42, pp197-208.
Alguacil, F. J., Caravaca, C., Mochon, J., and Sastre, A., 1997 : Solvent extraction of Au(CN) with mixtures of the amine Primene JMT and the phosphine oxide Cyanex 923. Hydrometallurgy, 44, pp359-369.
Zhao, Jin, Wu, Zhichun, and Chen, Jiayong, 1998 : Solvent extraction of gold in thiosulfate solutions with amines. Solvent Extraction and Ion Exchange, 16(2), pp527-543.
Zhao, Jin, Wu, Zhichun, and Chen, Jiayong, 1998 : Extraction of gold from thiosulfate solutions using amine mixed with neutral donor reagents. Hydrometallurgy, 48, pp133-144.
Zhao, Jin, Wu, Zhichun, and Chen, Jiayong, 1998 : Gold extraction from thiosulfate solutions using mixed amines. Solvent Extraction and Ion Exchange, 16(6), pp1407-1420.
Zhao, Jin, Wu, Zhichun, Chen, Jiayong, and Chia, Yung, 1999 : Separation of gold from other metals in thiosulfate solutions by solvent extraction. Separation Science and Technology, 34(10), pp2061-2068.
Kim, SungGyu, Lee, HwaYoung, Oh, JongKee, and Lee, EungCho, 1995 : Stoichiometric relation for the extraction of the gold-thiourea complex with D2EHPA. Hydrometallurgy, 38, pp7-13.
SarKar, Sunil G., and Dhadke, Puroshattam M., 2000 : Solvent extraction separation of gold with Cyanex 302 as extractant. Journal of the Chinese Chemical Society, 47, pp869-873.
Barroso, M. A., Lopez, F. A., Sastre, A., and Alguacil, F. J., 1997 : Study of the extraction of gold(III) in aqueous hydrochloric acid media by the phosphine oxide Cyanex 925. Hydrometallurgy, 45, pp199-209.
Martfnez, S., Sastre, A., and Alguacil, F. J., 1997 : Gold extraction equilibrium in the system Cyanex 921-HCl-Au(III). Hydrometallurgy, 46, pp205-214.
Nguyen, Thi Hong, Wang, Lingyun, and Lee, Man Seung, 2017 : Separation and recovery of precious metals from leach liquors of spent electronic wastes by solvent extraction. Korean Journal of Metals and Materials, 55(4), pp247-255.
Shen, Y. F. and Xue, W. Y., 2007 : Recovery palladium, gold and platinum from hydrochloric acid solution using 2-hydroxy-4-sec-octanoyl diphenyl-ketoxime. Separation and Purification Technology, 56(3), pp278-283.
Doidge, Euan D., Carson, Innis, Tasker, Peter A., Ellis, Ross J., Morrison, Carole A., Love, Jason B., 2016 : A simple primary amide for the selective recovery of gold from secondary resources. Angewandte Chemie International Edition in English, 55(40), pp1-5.
Zuo, Guangju, Muhammed, Mamoun, 1990 : Extraction of Gold and Silver by Thiourea-Based Reagents. Separation Science and Technology, 25(13-15), pp1785-1802.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.