화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.4, No.1, 58-63, March, 1998
Ion Exchange Characteristics of Platinum Group Metals from Nitric Acid Solution by Anion Exchangers
High-level wastes contain significant quantities of platinum group metals such as Pd(Ⅱ), Ru(Ⅲ) and Rh(Ⅲ). These metals are used for catalytic process, electronic and electrochemical industries, anti-corrosion alloys, dental applications, etc. The demand of noble metals continues to grow in a steady manner. There are many techniques such as solvent extraction, precipitation, ion exchange, and adsorption methods for separation and recovery of the platinum group metals. In this paper, batch experiments were carried out to investigate ion exchange characteristics of platinum group metals from nitric acid solution by anion exchangers such as IRN 78 and Dowex 1x8. The effects of ionic groups of anion exchangers, solution temperature, the concentration of nitric acid solution, and co-ions were investigated.
  1. Smith FJ, Mcduffie HF, Sep. Sci. Technol., 16, 1071 (1981)
  2. Jensen GA, Platt AM, Mellinger GB, Biorklund J, Technol., 65, 305 (1984)
  3. Liljenzin JO, Rydberg J, Skarnemark G, Sep. Sci. Technol., 15, 799 (1980)
  4. Carlin WW, U.S. Patent, 3,891,741 (1975)
  5. Wei YZ, Kumagi M, Takashima Y, Proceeding of IEX 96, 174, Royal Society of Chemistry (1996)
  6. Helfferich F, Ion Exchange, McGraw-Hill Book Company (1962)
  7. Chugaev LZ, Anorg. Chem., 46, 144 (1905) 
  8. Fletcher JM, J. Inorg. Nucl. Chem., 12, 154 (1959) 
  9. Foris JR, Buchum RF, ANL-6811 (1964)