Table Of Content

Hydrometallurgy, 28 (1992) 437-438 Elsevier Science Publishers B.V., Amsterdam Contents Vol. 28 Vol. 28 No. 1 Obituary Liquid-liquid extraction of cerium (III) and lanthanum (III) from aqueous chloride solutions by SME 529 T.S. Urbanski (Warsaw, Poland), C. Abbruzzese, P. Fornari and R. Massidda (Rome, Gallium solvent extraction in hydrometallurgy: An overview I. Mihaylov and P.A. Distin (Montreal, Que., Canada) Processing of Ras-Shait chromite deposits A.M. Amer (Alexandria, Egypt) Biosorption of cobalt with the AMT™ metal removing agent F.T. Awadalla (Ottawa, Ont., Canada) and B. Pesic (Moscow, ID, USA) Leaching of scheelite (CaWO,) under quasi-stagnant solution conditions R.A. Guedes de Carvalho and O.R. Neves (Porto, Portugal) Improvement of the stripping characteristics of Fe(III) utilizing a mixture of di(2- ethylhexyl) phosphoric acid and tri-n-butyl phosphate T. Hirato, Z.-C. Wu, Y. Yamada and H. Majima (Sakyo-ku, Kytot, Japan) The kinetics of the adsorption of gold from thiourea solutions by charcoal L. Dajun and B. Guanghui (Xian, China) Technical Notes Mixed control kinetics of copper dissolution for copper ore using ferric chloride _ N.N. Saxena and N.R. Mandre (Dhanbad, India) A study on the recovery of titanium from hydrofluoric acid leach solution of ilmenite sand R.K. Biswas, M.A. Habib and N.C. Dafader (Rajshahi, Bangladesh) Discussion The leaching rate of tin in oxygenated sodium hydroxide solutions — Comment F. Habashi (Québec City, Canada) The leaching rate of tin in oxygenated sodium hydroxide solutions — Reply F. Lawson (Melbourne, Vic., Australia ) Announcement Vol. 28 No. 2 Study of ammonium uranyl carbonate re-extraction-crystallization process by ammonium carbonate S. Chegrouche and A. Kebir (Alger-Gare, Algeria) The CENIM-LNETI process: a new process for the hydrometallurgical treatment of complex sulphides in ammonium chloride solutions J.L. Limpo (Madrid, Spain), J.M. Figueiredo (Lisbon, Portugal), S. Amer and A. Luis (Madrid, Spain) 0304-386X/92/$05.00 © 1992 Elsevier Science Publishers B.V. All rights reserved. 438 Reactions during the oxygen leaching of metallic sulphides in the CENIM-LNETI process J.L. Limpo, A. Luis and C. Gomez (Madrid, Spain) Solvent extraction of lanthanum (III) and cerium (III) from aqueous chloride solutions by LIX 70 C. Abbruzzese, P. Fornari, R. Massidda (Rome, Italy) and T.S. Urbanski (Warsaw, Poland) The corrosion of silver and silver sulphide in halide solutions in water and dimethylsulphoxide M.D. Benari and G.T. Hefter (Murdoch, W.A., Australia) The kinetics of the organic elution of gold cyanide from activated granular carbon using an aqueous caustic acetone solution N.M. Vegter and R.F. Sandenbergh (Pretoria, South Africa) Engineering application of the acid leaching kinetics of a manganese carbonate ore Z. Ma and C. Ek (Liége, Belgium) Influence of the lead and oxygen content on the passivation of anodes in the process of copper electro-refining W. Gumowska and J. Sedzimir (Krakow, Poland ) The investigation of osmosis in the liquid membrane technique. Influence of key parameters H.-J. Bart, C. Ramaseder, T. Haselgriibler (Graz, Austria) and R. Marr (Graz, Austria ) Technical Note Reduction leaching of manganese nodules by nickel matte in hydrochloric acid solution C. Hsiaohong, F. Chongyue and Z. Di-ji (Hunan, China) Vol. 28 No. 3 Interfacial activity of dinonylnaphthalene sulphonic acid in the presence of modifiers possessing an hydroxyl group J. Szymanowski (Poznan, Poland) , I. Blondet, G. Cote, D. Bauer (Paris, France) and J.- L. Sabot (Aubervilliers Cedex, France) Extraction equilibria of chromiumV(I ) from hydrochloric acid solutions with triisooctylamine in o-xylene Y.-H. Huang, C.-Y. Chen and J.-F. Kuo (Tainan, Taiwan ) Kinetics of dissolution of Ni;S, in acidic potassium dichromate solutions W. Mulak (Wroclaw, Poland) The separation of calcium and magnesium from lithium chloride by liquid-liquid extraction with di(2-ethylhexyl )p hosphoric acid H. Bukowsky, E. Uhlemann (Potsdam, Germany) , K. Gloe and P. Miihl (Dresden, Germany) Simultaneous extraction of rare earth elements and uranium from phosphoric acid F. Bunus and R. Dumitrescu (Bucharest, Romania) Extraction of light rare earth elements by amines at high inorganic nitrate concentration M. Cerna, E. Volaufova and V. Rod (Prague, Czechoslovakia ) Kinetics of and an adsorption model for the dissolution of synthetic WO; in aqueous ammonia J.W. Van Put and P.M. De Koning (Delft, Netherlands ) Hydrous uranium (IV) oxide as an adsorbent material for radioactive cations P. Donson, D.A. White and S. Bashir (London, UK) Kinetics of zinc and cobalt sulphide precipitation and its application in hydrometallurgical separation P.K. Mishra and R.P. Das (Bhubaneswar, India) The redox reaction between thiourea and ferric iron and catalysis of sulphide ores T. Zhu (Beijing, China ) The conversion of lead sulphate to lead carbonate in sodium carbonate media Y. Gong (Beijing, China), J.E. Dutrizac and T.T. Chen (Ont., Canada)