Table Of Content

International Journal of Mineral Processing, 31 (1991) 309-310 Elsevier Science Publishers B.V., Amsterdam Contents Volume 31 (1991) Research Papers Research on the preseparation space in hydrocyclones J.R. Xu, Q. Luo and J.C. Qui (Shenyang, P.R. China) Identification of feed and simulation of industrial flotation circuits P.C. Kapur, A. Dey and S.P. Mehrotra (Kanpur, India) An investigation of sub-processes in equilibrium froths (1): the mechanisms of detachment and drainage V.E. Ross (Randburg, South Africa) An investigation of sub-processes in equilibrium froths (II): the effect of operating conditions V.E. Ross (Randburg, South Africa) An efficient algorithm for mineral processing data adjustment D.E. Simpson, V.R. Voller (Minneapolis, MN, USA) and M.G. Everett (London, UK) Residence time distribution studies in a flotation column. Part |: the modelling of residence time distributions in a laboratory column flotation cell C.M. Goodall and C.T. O’Connor (Rondebosch, South Africa) Benificiation of calcareous phosphate rocks using dilute acetic acid solutions: optimisation of operating conditions for Ruseifa (Jordan) phosphate S.I. Abu-Eishah (Irbid, Jordan), I.S. El-Jallad (Amman, Jordan), M. Muthaker, N. Tougqan (Ruseifa, Jordan) and W. Sadeddin (Irbid, Jordan) Electroflotation of quartz fines D.R. Ketkar, R. Mallikarjunan and S. Venkatachalam (Bombay, India) Short Communication The influence of chemical additives on surface charge and hardness of hematite N. Pitchai, U.B. Nayak and A.K. Lahiri (Bangalore, India) Book Reviews Mineral Processing. Vol. 2, Concentration, Flotation, Separation, Backup Processes, by G. Tarjan - J. De Cuyper Challenges in Mineral Processing, by K.V.S. Sastry and M.S. Fuerstenau (Editors) - Research Papers Effect of fine particles on the kinetics and energetics of grinding coarse particles D.W. Fuerstenau and A.Z.M. Abouzeid (Berkeley, CA, USA) The effect of liner design on the motion oft he outer grinding elements in a rotary mill M.S. Powell (Randburg, South Africa) Mineral separations using rotating magnetic fields M.S. Walker and A.L. Devernoe (Guilderland, NY, USA) Electrophoretic characterization and processing of Asphalt Ridge and Sunnyside tar sands J. Hupka (Gdansk, Poland) and J.D. Miller (Salt Lake City, UT, USA) 310 A process for enhanced removal ofi ron from bauxite ores L.Y. Sadler and C. Venkataraman (Tuscaloosa, AL, USA) A model for the bacterial leaching of copper sulfide ores in pilot-scale columns H.J. Neuburg, J.A. Castillo, M.N. Herrera, J.V. Wiertz, T. Vargas and R. Badilla-Ohlbaum (Santiago, Chile) Thermodynamics of chalcocite—xanthate interactions C.A. Young, C.I. Basilio and R.H. Yoon (Blacksburg, VA, USA) Detection and location of gross errors in instruments using parity space technique J. Ragot, A. Aitouche, F. Kratz and D. Maquin (V andoeuvre Cedex, France) Report Third International Mineral Processing Symposium, | 1-13 September 1990, Istanbul, Turkey M.Z. Dogan and M.S. Celik (Istanbul, Turkey ) Book Review Special issue on Mineral Processing of the Bulletin of Materials Science, by the Indian Academy of Sciences — J.A. De Cuyper. Announcements