On the basis of reviewing the progress in the high efficient enrichment from secondary resources of low-grade precious metals at home and abroad,a process route of the high efficient enrichment precious metals from secondary resources of low-grade metals by adding iron oxide as the trapping agent,reducing agent,additive,mixing uniformly and grinding,pelletizing,reduction,grinding and separation,and selectively acid leaching iron has been put forward in this paper.The experiments of reduction,grinding and separation,and selectively acid leaching iron were carried out mainly.Under the decided experiment parameters and conditions,iron generated during the reduction can trap precious metals during reduction,high active alloy powders were obtained from the reduced products by grinding and separation,the concentration of precious metals was obtained by acid leaching high active alloy powders.The better enrichment effect was obtained by adopting the technical route of processing.Other low grade noble metal materials and enrichment ratio of precious metals from the materials to acid products was high through acid leaching.This process has the advantages of simple process,environmental-friendly,strong adaptability of raw materials,high concentration ratio,which was regarded as a kind of the general efficient enrichment technology of low grade precious metal materials.
参考文献
| [1] | Chiang, K.-C.;Chen, K.-L.;Chen, C.-Y.;Huang, J.-J.;Shen, Y.-H.;Yeh, M.-Y.;Wong, F.F. .Recovery of spent alumina-supported platinum catalyst and reduction of platinum oxide via plasma sintering technique[J].Journal of the Taiwan Institute of Chemical Engineers,2011(1):158-165. |
| [2] | Bousa M;Kurilla P;Vesely F.PGM catalysts treatment in plasma heated reactors[A].United States of America,2008 |
| [3] | 吴晓峰,汪云华,童伟锋.湿-火联合法从汽车尾气失效催化剂中提取铂族金属新工艺研究[J].贵金属,2010(04):24-28,31. |
| [4] | 吴晓峰,汪云华,范兴祥,赵家春,关晓伟,顾华祥.贵金属提取冶金技术现状及发展趋势[J].贵金属,2007(04):63-68. |
| [5] | 汪云华,吴晓峰,童伟锋.铂族金属催化剂回收技术及发展动态[J].贵金属,2011(01):76-81. |
| [6] | Wang Yunhua;Wu Xiaofeng;Tong Weifeng et al.The technology of extracting Pt,Pd,Rh from automotive catalyst[P].China,200910094112.7,2009. |
| [7] | Wu Xiaofeng;Wang Yunhua;Tong Weifeng et al.Extracting precious metals from automotive catalyst by wet-fire metallurgical technique[P].China,200910094317.5,2009. |
| [8] | 陈景.火法冶金中贱金属及锍捕集贵金属原理的讨论[J].中国工程科学,2007(05):11-16. |
| [9] | Sebastiao Guedes Batista Junior;Julio Carlos Afonso .Processing of spent platinum-based catalysts via fusion with potassium hydrogenosulfate[J].Journal of hazardous materials,2010(1/3):717-723. |
| [10] | Young Jun Park;Derek J. Fray .Recovery of high purity precious metals from printed circuit boards[J].Journal of hazardous materials,2009(2/3):1152-1158. |
| [11] | Lu Wenjuan;Lu Yanmin;Liu Fei et al.Extraction of gold(Ⅲ) from hydrochloric acid solutions by CTAB/n-heptane/waso-amyl alcohol/Na2SO3 microemulsion[J].Journal of Hazardous Materials,2011,186(2/3):2166-2170. |
| [12] | D. Parajuli;K. Inoue;H. Kawakita .Recovery of precious metals using lignophenol compounds[J].Minerals Engineering,2008(1):61-64. |
| [13] | O.N. Kononova;T.A. Leyman;A.M. Melnikov .Ion exchange recovery of platinum from chloride solutions[J].Hydrometallurgy,2010(3/4):161-167. |
| [14] | Jaewon Choi;Ju Hong Ko;Il Gu Jung .Reaction of Imidazoline-2-Selone with Acids and Its Use for Selective Coordination of Platinum Ions on Silica Surface[J].Chemistry of Materials: A Publication of the American Chemistry Society,2009(13):2571-2573. |
| [15] | Morteza Baghalha;Homa Khosravian Gh.;Hamid Reza Mortaheb .Kinetics of platinum extraction from spent reforming catalysts in aqua-regia solutions[J].Hydrometallurgy,2009(3/4):247-253. |
| [16] | B.Ramachandra Reddy;Raju B;Jin Young Lee et al.Process for the separation and recovery of palladium and platinum from spent automobile catalyst leach liquor using LIX 84I and Alamine 336[J].Journal of Hazardous Materials,2010,180(1/3):253-258. |
| [17] | Rumi Chand;Takanori Watari;Katsutoshi Inoue .Selective adsorption of precious metals from hydrochloric acid solutions using porous carbon prepared from barley straw and rice husk[J].Minerals Engineering,2009(15):1277-1282. |
| [18] | Roberta Santos Marinho;Cristiano Nunes da Silva;Julio Carlos Afonso;Jose Waldemar Silva Dias da Cunha .Recovery of platinum, tin and indium from spent catalysts in chloride medium using strong basic anion exchange resins[J].Journal of hazardous materials,2011(3):1155-1160. |
| [19] | Roberta Santos Marinho .Recovery of platinum from spent catalysts by liquid-liquid extraction in chloride medium[J].Journal of hazardous materials,2010(1/3):488. |
| [20] | Bratskaya, SY;Volk, AS;Ivanov, VV;Ustinov, AY;Barinov, NN;Avramenko, VA .A new approach to precious metals recovery from brown coals: Correlation of recovery efficacy with the mechanism of metal-humic interactions[J].Geochimica et Cosmochimica Acta: Journal of the Geochemical Society and the Meteoritical Society,2009(11):3301-3310. |
| [21] | Jose R. Parga;Jesus L. Valenzuela;Francisco Cepeda T. .Pressure Cyanide Leaching for Precious Metals Recovery[J].JOM,2007(10):43-47. |
| [22] | Xiong, Y;Adhikari, CR;Kawakita, H;Ohto, K;Inoue, K;Harada, H .Selective recovery of precious metals by persimmon waste chemically modified with dimethylamine[J].Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies,2009(18):4083-4089. |
| [23] | Murray A J;Mikheenko I P;Goralska E et al.Biorecovery of platinum group metals from secondary sources[J].Current Advances in Materials and Processes,2007,20/21:651-654. |
| [24] | Macaskie L E;Creamer.N J;Essa A M M et al.A new approach for the recovery of precious metals from solution and from leachates derived from electronic scrap[J].Biotechnology and Bioengineering,2007,96(04):631-639. |
| [25] | Angela J Murray;Mikheenko I P;Elzbieta Goralska et al.Macaskie.biorecovery of platinum group metals from secondary sources[J].Current Advances in Materials and Processes,2007,20/21:651-654. |
| [26] | Shino Iwao;Samir Abd El-Fatah;Kiyonori Furukawa .Recovery of palladium from spent catalyst with supercritical CO2 and chelating agent[J].The Journal of Supercritical Fluids,2007(2):200-204. |
| [27] | Yu-Lung Lam;Die Yang;Chi-Yuet Chan .Use of Water-Compatible Polystyrene-Polyglycidol Resins for the Separation and Recovery of Dissolved Precious Metal Salts[J].Industrial & Engineering Chemistry Research,2009(10):4975-4979. |
| [28] | Dawson RJ;Kelsall GH .Recovery of platinum group metals from secondary materials. I. Palladium dissolution in iodide solutions[J].Journal of Applied Electrochemistry,2007(1):3-14. |
| [29] | Chaitanya Raj Adhikari;Durga Parajuli;Katsutoshi Inoue .Recovery of precious metals by using chemically modified waste paper[J].New Journal of Chemistry,2008(9):1634-1641. |
| [30] | S. Syed.Recovery of gold from secondary sources-A review[J].Hydrometallurgy,2012:30-51. |
| [31] | Chaitanya Raj Adhikari;Durga Parajuli;Hidetaka Kawakita .Recovery and Separation of Precious Metals Using Waste Paper[J].Chemistry Letters,2007(10):1254-1255. |
| [32] | Nilanjana Das .Recovery of precious metals through biosorption--A review[J].Hydrometallurgy,2010(1/4):180-189. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%