Metallurgical Engineering

Metallurgical Engineering

Rhodium recovery from automobile exhaust catalyst leaching solution in the process of cementation by copper powder

Document Type : Research Paper

Authors
1 PhD student, Faculty of Engineering, Mineral Processing Department, Tarbiat Modares University, Tehran, Iran.
2 Associate Professor, Faculty of Engineering, Mineral Processing Department, Tarbiat Modares University, Tehran, Iran.
3 Assistant Professor, Faculty of Chemical Engineering, Petroleum Reservoir Engineering Department, Tarbiat Modares University, Tehran, Iran
Abstract
Rhodium pertains to the platinum-group metals (PGM) and has a special catalytic activity to reduce nitrogen oxides (NOx) to N2. Hence, more than 80% of total rhodium demand is now used for the production of autocatalysts. As regards, rhodium is one of the rarest elements in the earth's crust and its natural resource deposits are strictly limited, so, their recycling process from secondary resources must be considered. In this study, car exhaust catalyst, in the presence of HNO3 and HCl was dissolved by the leaching process. All species and rhodium complexes formation were analyzed by Phreeqc software. The recovery of rhodium from leach solution containing Mg, Mn, Pb, Ni, Fe and Al was done through cementation with metallic copper powder. At an ambient temperature, a stirrer speed of 150 rpm, a stoichiometric ratio of Cu to Rh 15 and at a time of 240 minutes about 70% of rhodium on copper powder particles were recovered. By increasing the temperature to 60 ° C, the rate of recovery increased up to 95 percent and cementation of rhodium was shown to be a feasible process to achieve a high degree of rhodium recovery. Analysis SEM / EDAX confirmed rhodium formed in the presence of copper by the dendritic and multi-layer structures with a purity of 87 percent rhodium.
Keywords

[1] Z. Xiao, A.R. Laplante, 2004, "Characterizing and recovering the platinum group minerals – a review", Minerals Engineering, V 17, pp 961-968.
 
[2] C.H. Kim, S.I. Woo, S.H. Jeon, 2000, “Recovery of platinum-group metals from recycled automotive catalytic converters by carbochlorination”, Ind. Eng. Chem. Res, V 39, pp 1185–1192.
 
 
[3] S. Steinlechner, J. Antrekowitsch, 2015, "Potential of a Hydrometallurgical Recycling Process for Catalysts to Cover the Demand for Critical Metals, Like PGMs and Cerium", The Minerals, Metals & Materials Society, V 67, pp 406-411.
 
 [4]  F.L. Bernardis, R.A. Grant, D.C. Sherrington, (2005), “ A review of separation of the platinum-group metals through their chloro-complexes”, React. Funct.Polym, V 65, pp 205–217.
]5[ م. م. پورامینی، خ. درزی­نژاد، 1392، "سینتیک و مکانیسم واکنش­های معدنی"، چاپ اول، انتشارات دانشگاه شهید بهشتی.
 [6] B. Gupta, I.SinghH. Mahandra, 2014, “Extraction and separation studies on Pt(IV), Ir(III) and Rh(III) using sulphur containing extractant Separation and Purification Technology”, V 132, pp102–109.
 [7] A. Jaree, N. Khunphakdee, 2011, “Separation of concentrated platinum(IV) and rhodium(III) in acidic chloride solution via liquid–liquid extraction using tri-octylamie, Journal of Industrial and Engineering Chemistry, V 17, pp243–247.
[8] N. Nikoloski, K.L. AngD Li, 2015, “Recovery of platinum, palladium and rhodium from acidic chloride leach solution using ion exchange resins, Hydrometallurgy, V 152, pp 20–32.
 
[9] P.P. Sun, J.Y. Lee, M.S. Lee, 2012, “Separation of platinum(IV) and rhodium(III) from acidic chloride solution by ion exchange with anion resins”, Hydrometallurgy, V 114, pp200–204.
 
 [10] H. Kalal, H.A. Panahi, H. Hoveid, M. Taghiof, M. Taheri, 2012, “Synthesis and application of Amberlite xad-4 functionalized with alizarin red-s for preconcentration and adsorption of rhodium (III)” Iranian Journal of Environmental Health Science & Engineering, pp 9-7.
 
[11] O. Saltabas, M. Teker, A. Dover, E.S.  Atay, 2012, “Removal of Rhodium (III) from Aqueous Solution by Na- and K-Treated Clinoptilolites”, Water, Air, & Soil Pollution, V 223, pp 411-419.

[12] T. AkkayaM. Gulfen, U. Olgun, 2013, “Adsorption of rhodium(III) ions onto poly(1,8-diaminonaphthalene) chelating polymer: Equilibrium, kinetic and thermodynamic study, Reactive and Functional Polymers, V 73, pp 1589–1596.

[13] A. Uheid. M. Iglesias, C. Fontas, M. Hidalgo, V. Salvado, Y. Zhang, 2006, “Sorption of palladium(II), rhodium(III), and platinum(IV) on Fe3O4 nanoparticles”, Journal of Colloid and Interface Science, V 301, pp 402–408.
 
[14] J. Moon, Y. Han, C. Jung, E. Lee, B. Lee, 2006, “Adsorption of rhenium and rhodium in nitric acid solution by Amberlite XAD-4 impregnated with Aliquat 336”, Korean Journal of Chemical Engineering, V 23, pp 303-308.
 
[15] C. Nowottny, W. Halwachs, K. Schugerl, 1997, “Recovery of platinum, palladium and rhodium from industrial process leaching solutions by reactive extraction”, Separation and Purification Technology, V 12, pp 135–14.
 
]16[ هیدرومتالورژی (عمل­آوری محلولهای لیچینگ)، تالیف فتحی حبشی، ترجمه م. عبداللهی، ض. شفایی، انتشارات دانشگاه صنعتی شاهرود، 1385.
 
[17] M. Karavasteva, 2010, "Kinetics and deposit morphology of gold cemented on magnesium, aluminum, zinc, iron and copper from ammonium thiosulfate–ammonia solutions", Hydrometallurgy, V 104, pp 119–122.
 
[18] S. S. Djokic, 1996, "Cementation of Copper on Aluminum in Alkaline Solutions", J. EIectrochemi. Soc., V 143, pp 1300-1306.
 
[19] B.George, G. Gaylard, E. Lewis, 2009, "Mechanism of rhodium (III) co-precipitation with copper sulfide (at low Rh concentrations) incorporating a new cationic substitution reaction path", Hydrometallurgy, V 96, pp 235–245.
 
[20] S. Aktas, 2011, "Rhodium recovery from rhodium-containing waste rinsing water via cementation using zinc powder", Hydrometallurgy, V 106, pp 71–75.
 
]21[ م. حسنی، ا. خدادادی، س.م کلینی، 1394، "بازیابی انتخابی پلاتین از کاتالیستهای مستعمل اگزوز خودرو بکمک نانوذرات مگنتیت با پوشش سطحی سیلیکاته"، نشریه علوم و مهندسی جداسازی، دوره 7، شماره 2، ص 84-75.
 
[22] M.L. Free, 2013, "HYDROMETALLURGY; Fundamentals and Applications", John Wiley & Sons, Inc., ISBN 978-1-118-23077-0, Hoboken, New Jersey.
 
[23] Cynthia G. Zoski, 2007, "Handbook of Electrochemistry", New Mexico State University Department of Chemistry and Biochemistry, USA Elsevier, Oxford OX5 1GB, UK.
 
[24] B. Beverskog, 1998, "Pourbaix diagrams for the system copper-chlorine at 5–100 °C", Sweden Ignasi Puigdomenech Studsvik Eco & Safety ABS-611 82.
 
[25] N.Amin, E. El-Ashtoukhy, O. Abdelwahab, 2007, "Rate of cadmium ions removal from dilute solutions by cementation on zinc using a rotating fixed bed reactor, Hydrometallurgy, V 89, pp 224–232.
 
[26] F. Farahmand, D. Moradkhani, M. S. Safarzadeh, F. Rashchi, 2009, "Optimization and kinetics of the cementation of lead with aluminum powder", Hydrometallurgy, V 98, pp 81–85.S.
 
[27] G.P. Power, M. RitchieA, 1976, "A Contribution to the Theory of Cementation (Metal Displacement) Reactions", Aust. J. Chem., V 29, pp 699-709.
 
[28] D. Pletcher, F.C.Walsh, 1993, "Industrial Electrochemistry", originally pub1ished by Blackie Academic & Professional, Macmillan India Ltd, Bangalore 560 025.
 
[29] E. Nassef, Y. El-Taweel, 2015, "Removal of Copper from Wastewater by Cementation from Simulated Leach Liquors", Chemical Engineering & Process Technology, V 6, pp 1-6.
 
[30] A. Nosier, 2003, "Removal of Cadmium Ions from Industrial Wastewater by Cementation, Chemical & Biochemical Engineering, V 17, pp 219–224.