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The Effects of Environment on Bacterial Leaching Rates
Further evidence is presented as to the widespread occurrence of Thiobacillus ferrooxidans in nature in association with sulphide minerals. Leaching rates are discussed in terms of the effect of envir
Jan 1, 1968
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Development of a slimhole downhole nuclear magnetic resonance tool for iron ore – some applications and limitations
By T A. J Hopper, B J. Birt, K K. Trofimczyk
Nuclear magnetic resonance (NMR) has been utilised in the oil and gas industry for over 60 years. The technology was recently identified as having potential value in iron ore, where latent bound moist
Jul 24, 2017
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The Influence of Pyrite on the Pulp Chemistry and Copper Flotation Response of a Chalcopyrite Ore
By L Teixeira, C J. Greet, P Karageorgos
Pyrite is ubiquitous within copper ores, and presents significant challenges to most operations in terms of its impact on copper sulfide concentrate grade and recovery.Samples of ore containing from 3
Sep 7, 2015
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Performance of Outotec FloatForce« Flotation Mechanism - A Study in Both Computational Fluid Dynamics and Industrial Scale Measurement
Performance of Outotec FloatForce« Flotation Mechanism - A Study in Both Computational Fluid Dynamics and Industrial Scale Measurement
Sep 13, 2010
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Determination of Combustible Volatile Matter in Coal Mine Roadway Dusts by Backscatter of X-Rays from a Radioisotope Source
By Fookes R. A, Bunch K, Gravitis V. L, Watt J. S
The combustible volatile matter in coal mine roadway dusts (CVM) has been determined using x-ray backscatter techniques. The correlation between x-ray and chemical techniques is reasonably good for th
Jan 1, 1977
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Metallurgical Effects Associated with the use of Cemented Backfill at the Zinc Corporation, Limited and New Broken Hill Consolidated Limited
The addition of cement to underground backfill at The Zinc Corporation, Limited and New Broken Hill Consolidated Limited, Broken Hill commenced in 1967. A deterioration in metallurgical performance at
Jan 1, 1971
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Notes on Tin Sluicing in Tasmania
IN this paper an attempt is made to describe the sluicing operations on the tin fields of north-eastern Tasmania. No claim is made to completeness, for much of the ground has already been covered, and
Jan 1, 1910
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The Geology of the Manto Verde Mine, Atacama Desert, Chile
The Manto Verde mine is found in the coastal ranges of the Atacama desert, 1000 km north of Santiago,
Jan 1, 1992
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Some Chemical Properties of Slags
By Hennessy F. L
It is generally recognised that slags are active participants in pyrometallurgical processes, and not merely inert liquids which must be produced. to effect separation of gangue material in smelting,
Jan 1, 1950
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Plant Improvement and Cost Reduction at the Great Boulder Proprietary Gold Mines Limited
By Harris J. W
The treatment plant at The Great Boulder Proprietary Gold Mines Limited was designed and erected by Chas. Ruwolt Proprietary Limited in 1934 to mill 12,000 short tons per month. The flow sheet called
Jan 1, 1955
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The Washing of Queensland Coals
Most mines in the Bundamba, North Ipswich, and Rosewood districts of the West Moreton coalfield of south eastern Queensland have installed washing plants during the last five years. Many problems were
Jan 1, 1963
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Pumping Machinery for Mines, with Special Reference to the Plant at the Waihi Mine, N.Z.
THE choice of a pumping plant for the drainage of a mine is a matter of such importance that it is obvious that in a short paper it is impossible to go fully into the reasons governing the adoption of
Jan 1, 1912
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Genetic Classification and Prospectivity of Gold-Bearing Veins in the Otago Schist, New Zealand
By R J. Norris, D J. MacKenzie
Gold-bearing veins have formed at a wide range of depths throughout the uplift history of the Otago Schist. The earliest gold mineralisation occurred during the later stages of Mesozoic metamorphism.
Jan 1, 2000
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Stirred Milling Technology - A New Concept in Fine Grinding
By A Paz, H Lehto, M +stholm, I Roitto
Nowadays, the demand for a finer grind in minerals processing has set new challenges within the industry, particularly for grinding technology. Apart from a finer grind, energy efficiency is also a ke
Jul 15, 2013
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A Modified Laboratory Concentrating Table
Small scale' table concentration tests have many critics. Many metallurgists consider that such tests are of problematical value because of the difficulties involved in conducting and interpretin
Jan 1, 1954
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Estimation of Tin in an Ore
THE object that the writer has mainly in view in presenting this paper is to draw the attention of those connected with the technical side of the industry to the unsatisfactory and by no means up-to-d
Jan 1, 1912
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Evaluation of Gippsland Basin Onshore Structures for Compressed Air Energy Storage
By Wilson D, Kirkland J
Compressed air energy storage (CAES) uses low cost off-peak energy to compress air and pump it into pressurised underground storage. Expanding the air through a modified form of gas turbine generate
Jan 1, 1992
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Deterministic Expert Systems : A New Planning Tool for Project Development
Project developent proceeds by increasingly detailed studies addressing overall project returns through an analysis of the substance, risks and costs associated with the following elements: ò Reserv
Jan 1, 1989
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Technology of Electrolytic Reduction of Alumina by the Hall-Heroult Process: IV. Chemical Processes Associated with the Anode Effect
The point of the anode effect on carbon anodes of dcfincd surface area. during electrolytic decomposition of alumina dissolved in molten fluorides. has been determined from current-voltage curves. The
Jan 1, 1967
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Ore Grinding Energy Minimisation by Thermal Treatment
By Dhar B. B, Gupta R. C
Grinding of iron ore is an essential step to utilise ore fines for pelletisation needed for DRI units. While preparing iron ore pellets for DRI production, the iron ore needs extensive grinding whic
Jan 1, 1999