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  • SAIMM
    The absorption of gold cyanide onto activated carbon. I. The kinetics of absorption from pulps

    By M. J. Nicol, G. Cromberge

    An account is given of the development of a relatively simple model that describes the kinetics of the absorption of gold cyanide on activated carbon. The model is based on the treatment of the carbon

    Jan 1, 1983

  • SAIMM
    SPOTLIGHT on an excursion to Southern Cross Steel

    By P. N. Harris

    On 23rd November, 1982, a party of 80 members of The South African Institute of Mining and Metallurgy left the Wanderers Club grounds at 07hOO, and were driven in two luxury coaches to the stainless-s

    Jan 1, 1983

  • SAIMM
    The recovery of gold from plant effluent by the use of activated carbon

    By R. J. Davidson, B. Strong

    The piloting and eventual large-scale operation of fixed-bed carbon columns for the recovery of gold from plant effluents is described. A fixed-bed carbon pilot plant comprising three adsorption colum

    Jan 1, 1983

  • SAIMM
    Surface and underground drilling techniques used in exploration drilling

    By B. A. Dukas

    The diamond-drilling machine has for many years been the most important exploration tool In the search for and subsequent evaluation of Witwatersrand-type ore deposits. With a view to increasing the r

    Jan 1, 1983

  • SAIMM
    A quick test procedure for the determination of milling parameters

    By D. Menne

    A comminution model and a quick laboratory milling test procedure are presented. These allow the determination of milling parameters for the - optimization of ball size and pulp density in operating m

    Jan 1, 1983

  • SAIMM
    The analysis of ventilation and cooling requirements for mines

    By L. K. Smith, E. M. de Kock, J. van der Walt

    A systematic approach to the analysis of alternative methods of ventilating and cooling large hot mines is presented. The important factors that have a bearing on ventilation and cooling requirements

    Jan 1, 1983

  • SAIMM
    Mintek reports

    Report M48 Tracer tests on furnaces at M etalloys Limited. Report M52 A high-speed, multi-input serial-interfacing system for a computer with simultaneous back-1lP recording on magnetic tape. Repor

    Jan 1, 1983

  • SAIMM
    The presinking of Harmony No. 4 shaft by use of the MA TLA headgear

    By I. M. W. Preston

    A new shaft system was required to replace stope face for the North Section of Harmony Mine and to allow for systematic opening up of the North Eastern Section. Owing to the economic circumstances at

    Jan 1, 1983

  • SAIMM
    The behaviour of mine tailings during hydraulic deposition

    By G. M. Bentel, G. E. Blight

    The environmentally acceptable disposal of fine-particled mining and industrial wastes by the formation of hydraulic- fill slimes dams is becoming an increasingly important aspect of the total mining

    Jan 1, 1983

  • SAIMM
    Introducing your Council (eb4b04eb-6ced-475d-91ef-0c21f26e0733)

    Professor N. S. Budavari holds a Dip!. Min. Eng. from the Technical University of Sopr on, Hungary, and a Ph.D. degree from the University of Newcastle-upon-Tyne, U.K. Mr J. J. Geldenhuys, Pr. Eng., i

    Jan 1, 1983

  • SAIMM
    Recent developments in the separation of nickel and cobalt from sulphate solutions by solvent extraction

    By J. S. Preston

    The properties of some recently developed solvent-extraction reagents for the separation of cobalt and nickel sulphate solutions are reported. New commercial extractants based on alkyl phosphonic and

    Jan 1, 1983

  • SAIMM
    The clarification of uranium pregnant solution at Buffelsfontein by a circulatorclarifier

    By P. C. van Aswegen

    Owing to the strategic value of organic solvents, an investigation was conducted on the reduction of solvent losses at the Buffelsfontein solvent-extraction plant. It was established that the major ca

    Jan 1, 1983

  • SAIMM
    SPOTLIGHT on flotation

    By John Freer

    Over 200 delegates attended the SAIMM Colloquium on Flotation, which was held at Mintek on 22nd September, 1983. In introducing the programme, the Chairman of the Technical Programme Committee, Mr Eug

    Jan 1, 1983

  • SAIMM
    Annual Report and Accounts for the year ended 30th June, 1983

    Council and Standing Committees - 1982/83 President: Prof. A. N. Brown Vice Presidents: Prof. R. P. King and J. D. Austin Honorary Treasurer: Prof. D. G. Krige Immediate Past President: G. Y. Nisbet

    Jan 1, 1983

  • SAIMM
    The selection of underground equipment for coal mines

    By A. J. Raubenheimer

    The most important criteria in the selection of mining equipment (mining conditions. operational performance, engineering design, manufacturer's involvement, and financial considerations) are dis

    Jan 1, 1983

  • SAIMM
    Corrigendum: February Issue

    Fig. 4 and 5 of the paper 'The analysis of ventilation and cooling requirements for mines' by J. van der WaIt, E. M. de Kock, and L. K. Smith are positioned incorrectly in the February issue

    Jan 1, 1983

  • SAIMM
    Problems encountered during the commissioning of the carbon-in-pulp plant at Beisa Mine

    By A. P. W. Briggs

    Difficulties with the screening of large volumes of pulp to remove plus 600 /km material before the adsorption circuit and to retain plus 20-mesh carbon in the adsorption contactors have largely been

    Jan 1, 1983

  • SAIMM
    SPOTLIGHT on materials handling in open-pit mines

    By B. C. Alberts

    Rapid and effective handling of run-of-mine, waste, and treated materials is vita.! to every step of resource development and recovery. Modern mine managements have planned and engineered systems for

    Jan 1, 1983

  • SAIMM
    The balancing of a centrifugal mill

    By A. A. Bradley, K. H. Stanton, P. J. D. Lloyd

    A theory for the dynamic balancing of centrifugal mills is presented that takes account of the mass and shape of the charge in a gyrated grinding tube and the way in which the charge lags behind the c

    Jan 1, 1983

  • SAIMM
    Theories of ball wear and the results of a marked-ball test in ball milling

    By C. L. M. Gough, L. A. Vermeulen, D. D. Howat

    Formulae expressing the dependence of the mass of a grinding ball on the amount of material milled by a ball mill are derived. It is shown that, with the aid of these formulae, it is relativel rsimple

    Jan 1, 1983