SPECIAL PUBLICATION No. 6 —9929 Unrestricted Mintek publications 1966 to 1984 by H.W. GLEN UNRESTRICTED MINTEK PUBLICATIONS 1966 TO 1984 by H.W. Glen Special publication no. 6 April 1984 Printed and published by the Council for Mineral Technology, Private Bag X3015, Randburg, 2125 South Africa ISBN 0 86999 653 3 First printed April 1976 (as Report 1812) Reprinted with additions and amendments June 1977 (as Report 1894) June 1978 (as Report 1970) June 1979 (as Report 2013) August 1980 (as Report 2067) March 1983 (as Report M85) April 1984 (as Special Publication 6) SYNOPSIS This publication lists the 895 unrestricted reports, 508 papers, 45 patents, 5 special publications, and 2 technical bulletins that were issued as publications of the National Institute for Metallurgy (NIM) and the Council for Mineral Technology (Mintek) from 1966 (the year of NIM's inception) to 31st March 1984. For ease of reference, these publications are also classified under research topics. Also included are details of the periodicals issued by Mintek and a list of its current miscellaneous publications, which include brochures and leaflets of various kinds. SAMEVATTING Hierdie publikasie lys die 895 onbeperkte verslae, 508 referate, 45 patente, 5 spesiale publikasies en 2 tegniese bulletyne wat sedert 1966 — die stigtingsjaar van die Nasionale Instituut vir Metallurgie (NIM) — tot 31 Maart 1984 as publikasies van NIM en die Raad vir Mineraaltegnologie (Mintek) uitgegee is. Hierdie publikasies word vir maklike verwysing ook onder navorsingsonderwerpe, geklassifiseer. Daar word ook besonderhede verstrek van die blaaie wat Mintek uitgee en 'n lys van diverse publikasies soos verskillende soorte brosjures en pamflette, ingesluit. PREFACE This publication, which supersedes Report M85, is a compilation of all the publications of the National Institute for Metallurgy (NIM) and its successor, the Council for Mineral Technology (Mintek), having an unrestricted distribution list. The NIM reports end with Report 213SD, and the Mintek reports start with Report Ml. The present publication includes all the unrestricted reports and the patents issued and registered by these organizations from 1966 to 31st March, 1984, the confidential reports that were declassified during that period, all the papers published during that period where one of the authors was, or is, a member of staff, znd the other publications that do not fall into the categories already mentioned. The total number of unrestricted reports included is 895, the patents amount to 45, the number of papers published is 508, and the other publications amount to 7. For ease of reference, all the reports, papers, patents, technical bulletins, and special publications listed here have been classified as far as possible into various research topics. A list of these topics is given in Section 6, together with the .lumbers of the pages on which the publications are classified according to topic. This publication also gi'es details of the periodicals issued by Mintek and concludes with a list of miscellaneous publications, which are additional to those mentioned above. These include current brochures. CONTENTS PREFACE 1. LIST OF UNRESTRICTED REPORTS 1 2. PAPERS BY STAFF 42 3. PATENTS 77 4. SPECIAL PUBLICATIONS 81 5. TECHNICAL BULLETINS 81 6. CLASSIFICATION OF RESEARCH TOPICS 82 7. CLASSIFICATION OF PUBLICATIONS ACCORDING TO RESEARCH TOPIC 86 8. PERIODICAL PUBLICATIONS 179 9. MISCELLANEOUS PUBLICATIONS 180 MINTEK PUBLICATIONS 1. LIST OF UNRESTRICTED REPORTS Copies of most of these reports are available free of charge from Mintek, Private Bag X3015, Randburg, 2125 South Africa. For those reports that are out of print, photocopies can be supplied at a nominal charge. The reports that have become available since the previous issue of this list (NIM Report M85 are marked •. MINTEK PUBLICATIONS No. Title Year 2 The dissolution of gold in cyanide solutions containing copper in a carbonate/bicarbonate medium. Preliminary results 1966 S The spectrophotometric determination of trace amounts of tin 1966 8 Mineralogy and chemical behaviour of some refractory gold ores from the Barberton Mountain Land 1966 10 The determination of phosphate in silicate samples 1966 11 Gravimetric determination of carbon dioxide in cyanide solutions 1966 12 Exploratory tests on the concentration of tin ore from Kuils River, C.P. 1966 14 A comparison of the effects of additions of carbonate/bicarbonate as opposed to additions of lime in the leaching of a Blyvooruitzicht gold ore 1966 16 The rotating-disc system and its applications in the dissolution of gold 1966 18 The 8th Commonwealth Mining and Metallurgical Congress — Australasia — 27th February to 15th April, 1965. Visits to various places in Australia and Tasmania 1966 20 The determination of small amounts of gold in barren cyanide solution by atomic- absorption spectrophotometry 1966 21 The use of heavy-medium separation for the recovery of spodumene 1966 24 Determination of gold in barren cyanide solutions by atomic-absorption spectrophotometry 1966 25 Quantitative mineralogical examination of six samples of pulverized mine ores submitted by the Chemical Engineering Group, CSIR 1966 26 Economic evaluations of the possible production of alumina from Sasol ashes by the ammonium sulphate baking process and the ammonium fluoride and sulphuric acid leaching process \967 27 Spectrophotometric determination of gold in cyanide solutions after solvent extraction as the bromo-aurate complex 1966 28 Exploratory tests on the dissolution of manganese dioxide by reaction with sulphuric acid and a metallic sulphide 1966 29 The determination of selenium and tellurium in silver chloride 1966 30 The extraction of alumina from Sasol coal ash 1966 34 Qualitative electron-microprobe investigation of cobalt-gadolinium intermetallic compounds 1966 35 The determination of gold ores and solutions by neutron-activation analysis 1966 37 The determination of aluminium in silicate samples by complexometric titration 1966 38 Chemical treatment of refractory gold ores. Literature survey 1966 MINTEK PUBLICATIONS No. Title Year 39 The determination of small amounts of silica in zirconium ores and concentrates 1966 40 The spectrophotometric determination of tin in silicate materials 1966 41 Table of the isomeric states of stable nuclides 1966 42 The redox potential of solutions of potassium ethyl xanthate 1966 43 The effect of oxygen on the stability of solutions of potassium ethyl xanthate 1966 44 The zero point of charge of uranium dioxide and uraninite 1966 45 An apparatus used in the study of interactions between sulphide minerals, sulphydryl reagents and oxygen 1966 48 The investigation of a suspected siilimanite-bearing sample 1966 49 The spectrophotometric determination of silica in zirconium oxide 1966 51 Exploratory tests on the recovery of diaspore from a ferruginous shale from the Gamagararand 1966 53 Differential thermal investigation of Moore-filter residues for the Anglo American Research Laboratory 1966 54 Electron-microprobe investigation of magnetite from the Bushveld Igneous Complex 1966 63 X-ray and spectrographic analyses of seven samples of manganese ere 1966 64 The determination of the hafnium/zirconium ratio in ammonium diuranate produced by the Bufflex Process 1966 65 Samples of manganese dioxide for battery tests by the CSIR 1966 66 The study of propagation modes effective in around-the-World radio-wave propagation in the 15-Mc/s to 30-Mc/s band 1966 67 The application of silicon controlled rectifiers to instruments using half-cycle heating 1966 69 Preliminary examination of ijolite from Spitzkop 1966 76 The electron-microprobe investigation of a gold concentrate from the Louis Moore Mine 1966 77 Concentration of fluorspar from the farm Strydfontein, Marico District. Preliminary investigation 1966 78 X-ray investigation of four samples of manganese ore 1966 79 Investigation into the improvement of gold recovery in the cyanidation circuit of the Louis Moore Gold Mine 1966 80 The resolution of photopeaks obtained from the products of stable nuclides irradiated by neutrons 1966 MINTEK PUBLICATIONS No. Title Year 81 The solvent extraction of copper cyanide 1966 82 The spectrophotometric determination of cobalt with 2-nitroso-l-naphthol 1966 83 Qualitative X-ray examination of two samples of MnO2 ore 1966 84 Leaching tests on the copper sulphide mineral valleriite from Palabora Mining Company — a preliminary report 1966 85 The roasting of refractory gold ores and concentrates. Literature survey 1966 86 The investigation of six samples of serpentinite from the Barberton area 1966 88 Quantitative electron-microprobe investigation of the distribution of nickel in serpentinites and associated minerals and rocks from the Barberton area 1966 89 Mineralogical examination of ijolite from Spitzkop 1966 90 Mineralogical examination of schist sample from the Giant Reefs Mine 1966 91 Half-cycle heating applied to an X-ray powder camera 1966 96 The mode of occurrence of beryl in grey gneiss along the contact with the Gesie pegmatite 1966 97 X-ray-diffraction analysis of six samples of manganese ore from Graskop, eastern Transvaal 1966 98 Qualitative X-ray analysis of manganese dioxide ore from Graskop 1966 99 Determination of molybdenum in uranium compounds 1966 101 Electron-microprobe identification of opaque minerals in gold ore from the Basal Reef, Free State Geduld Mine 1966 102 Micas of the Noumas pegmatite 1966 103 Techniques for the examination of inorganic compounds on an infrared spectrograph 1966