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A note on predicting the performance of large flotation machines
By B. K. Loveday
The use of large flotation machines is well established, resulting in substantial savings in both capital and operating costs. Therefore, when a new plant is designed, laboratory and pilot-plant tests
Jan 1, 1983
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Evaluation of heat-acclimatization procedures at wet-bulb temperatures below 31,7 °C
By P. C. Schutte, N. B. Strydom, A. J. Kielblock
Three groups of unacclimatized men were subjected to five-day climatic-room procedures at wet-bulb temperatures of 29,30, and 31 C respectively. The findings indicated that individuals reach a satisfa
Jan 1, 1983
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A critical evaluation of methods applicable to the determination of cyanides
By C. Pohlandt
A literature survey of methods suitable for the determination of cyanides in process streams and effluents is presented. Of the large number of methods published, 92 are examined in detail, emphasis b
Jan 1, 1983
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The prereduction and smelting of chromite concentrate of low chromium-to-iron ratio
By A. R. Barnes, C. W. P. Finn
The prereduction and smelting characteristics of UG-2 ore were studied and compared with those of Winterveld chromite ore. The UG-2 ore proved more reducible, and substantial prereduction (over 70 per
Jan 1, 1983
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Book News
1. New books Specialty steels and hard materials, edited by N. R. Comins and J. B. Clark. Oxford, Pergamon, 1983.482 pp. Hardcover £55.50. Papers presented at an international conference on advances i
Jan 1, 1983
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Book news
1. Book reviews Quantitative texture analysis, edited by H. ,}. Bunge and C. Esling. Deutsche Gesellschaft fur Metallkunde, 1982. 551 pp. Reviewer: L. 1\'1.Matthews Boundary element methods in so
Jan 1, 1983
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Book news
1. Book reviews A report by the Monopolies and Mergers Commission on the efficiency and. costs in the development, production and supply of coal by the NCB (Chairman G. Le Quesne). London, Her Majesty
Jan 1, 1983
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Book News
1. Book reviews Mill Operators' Conference. Parkville (Australia), Australasian Institute of Mining and Metallurgy, 1982. 425 pp. Reviewer: B. K. Loveday Off highway truck haulage. Newman Combine
Jan 1, 1983
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Book News
1. New publications International minerals/metals review - 1982. Washington D.C., McGraw-Hill, 1983.720 pp. U.S.$1l7. Mining subsidence engineering, by Helmut Kratzsch. New York, Springer, 1983.580 pp
Jan 1, 1983
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Annual General Meeting of the Institute
The 86th Annual General Meeting of the South African Institute of Mining and Metallurgy was held in Kelvin House, Johannesburg, on Wednesday, 17th August, 1983. Professor A. N. Brown (President) was
Jan 1, 1983
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Book News
1. Book reviews Underwater tools, by Donald J. Hackman and Don W. Candy. Columbus (D.S.A.), Battelle Press, 1981. 152 pp. $32,95. Reviewer: B. Schmitz Uranium exploration case histories. Proceedings o
Jan 1, 1983
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Spotlight on Councillors' Visit to Franz Hoenig Haus
By John Freer
As an innovation on the annual programme, the Excursions Sub-Committee organized a social get together of the Institute's Councillors and their families on Sunday, 27th February, 1983. Asian Mini
Jan 1, 1983
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Theoretical considerations of the cementation of copper with iron
By R. D. Agrawal, M. L. Kapoor
Cementation has been used extensively by chemists and metallurgists as an economical process for the purification and recovery of metals from dilute solutions. The paper deals. firstly. with the therm
Jan 1, 1982
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Some considerations in the use of gravity concentration for the recovery of gold
By J. E. Forbes, B. K. Loveday
The role of gravity concentration in the recovery of gold from typical South African gold ores is described. The location of the concentrator in the grinding circuit is discussed, and typical capaciti
Jan 1, 1982
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Contribution to the previous paper
By G. L. C. Young
The first full-scale Reichert cone concentrating plant to be erected at a large South African gold mine was at President Steyn Gold Mining Company, Welkom. ThiR plant was installed as a part of the ru
Jan 1, 1982
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A contactor for liquid-liquid extraction from slurries
By H. W. Byerlee
A contactor has been designed that avoids solvent loss due to coalescence and other causes. This consists of a column packed with grids. Slurry enters at the top and flows as films down the inclined s
Jan 1, 1982
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The planning and establishment of the coal-beneficiation plant at Grootegeluk
By J. Gilliland
The Grootegeluk coal-beneficiation plant was erected in the Waterberg coalfield, near Ellisras in the Transvaal, to supply Iscor's steelworks with a predetermined tonnage of coking coal in accord
Jan 1, 1982
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The effect of head grade on recovery efficiency in a gold-reduction plant
By M. Splaine, C. E. Dohm, S. J. Browner
As the grade of the gold (head grade) in the ore supplied to a reduction plants falls, the efficiency of recovery of the metal drops. This is not simply due to a fixed grade lost in the residue, since
Jan 1, 1982
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SPOTLIGHT on new office-bearers of the Chamber of Mines
At the Annual General Meeting of the Chamber of Mines of South Africa, held in Johannesburg on 29th June, 1982, the following leading members of the mining industry were elected to office for the 1982
Jan 1, 1982
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A review of the deposits and beneficiation of lower-grade chromite
By Ralph H. Nafziger
This paper reviews the major deposits of lower-grade chromite in the world, and a wide variety of methods used for the recovery of chromium from them. Gangue materials in more coarsely sized ores can
Jan 1, 1982