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MEI Online: Hydrometallurgy: Conference Reports: Solvent Extraction


International Symposium on Solvent Extraction

Bhubaneswar, India,
September 26-27, 2002

This two-day International Symposium on Solvent Extraction was held at Regional Research Laboratory (CSIR), Bhubaneswar, Orissa, India.

Geographical distribution of delegates:
About 100 delegates from South Korea, Bangladesh and India took part in the deliberations. Indian delegates are from Bhabha Atomic Research Center (BARC), Mumbai, Indira Gandhi Center for Atomic Research(IGCAR), Kalpakkam, Nuclear Fuel Complex(NFC), Hyderabad, Heavy Water Board(HWB), Talcher, Indian Rare Earths(IRE), Kerala, Uranium Corporation of India Ltd.(UCIL), Jaduguda, IIT-Roorkee, IIT-Madras, Institute of Science, Mumbai, Shivaji University, Kolhapur, National Metallurgical Laboratory(NML), Jamshedpur, Regional Research Laboratory, Tiruvanathapuram, Regional Research laboratory, Bhubaneswar, Indian Institute of Technology, Hyderabad.

The programme was broadly divided into nine technical sessions. Out of these, three were devoted to papers related to non-ferrous metals, two each for nuclear elements and analytical applications and one each for design-simulation and solvent development. The three sessions on non-ferrous metals covered a wide range of metals viz. Zn, Cu, Ni, Co, Ca, Mn, Cd, V, Ti, Hg, Ga, Ta, Sb, Zr, Nd and Lanthanides. Separation and recovery of these metals from solutions arising out of a variety of feed materials such as molybdenite concentrate, brass-ash, Ocean nodules, brine-sludge of chloro-alkali industry, Bayer liquors, Tantalites-Columbite ores was presented by authors. In addition to the flow sheet development work, aspects such as synergism and kinetics of extraction were also covered in some of the papers presented. Some papers dealt with improvement in plant practices and commercialization of research activities. The papers related to Nuclear metals covered, Uranium-thorium extraction, their separation, nuclear fuel reprocessing and development of new reagents. The two sessions on application of solvent extraction in analytical chemistry included papers on estimation of metals by extractive-spectrophotometric methods. New reagents were proposed for determination of Cu, Pd, Ni, Ti, Co, Hg, Pt, Pb etc. The session on design and simulation covered aspects such as third phase formation, interfacial tension extraction using columns, extraction using liquid membranes and the effect of ultra sound on oil extraction. The session on solvent development highlighted the efforts made by various institutions on the synthesis of reagents, mostly the LIX type reagents, Tri-Butyl Phosphate and Phosphoric based extractants. The Symposium Proceedings of (637 +xv) pages have been brought out on this occasion and it was edited by Prof. Vibhuti N Misra, Dr. S.C.Das and K.Srinivasa Rao. This volume is published by M/s Allied Publishers Pvt. Ltd. New Delhi. ISBN 81-7764-356-8

K. Srinivasa Rao. Email: ksrao@rrlbhu.res.in




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