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Dissecting grinding circuit efficiency using functional performanceBy Kyle Bartholomew, Robert McIvor
"Functional performance analysis of closed circuit grinding provides valuable insight into the two components of ball mill circuit grinding efficiency: classification system efficiency and mill grindi
Jan 1, 2014
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Air Recovery: Its Significance and PredictionThe air recovery from a flotation cell is the fraction of inlet air which overflows the weir as un-broken bubbles. The air recovery is an important factor in froth phase phenomena; such as gangue entr
Jan 1, 2014
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Raman analysis: Detection of minerals and measurement of concentration using reference spectraBy Olli Haavisto, Heikki Häkkänen, Tommi Kauppinen, Navid Khajehzadeh
Raman analysis is a well-established method for finding the abundant minerals in an ore sample. In this study, Raman spectroscopy is tested as a method for rapid and contactless on-line mineral analys
Jan 1, 2014
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Test Results and Development of a Technology of Gold-copper Ore CyanidationBy Olga D. Khmelnitskaya
The paper presents the results of research on the development of gold recovery technology from oxidized gold-copper ore of one of deposits in Russian Federation. Gold and copper grades in the ore are
Jan 1, 2014
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Simulation of sensor-based sorting based on drill core analysisBy Kilian Neubert, Hermann Wotruba, Henning Knapp
Sensor-based sorting has been integrated into more and more applications in mineral processing over the past decades. Various sensor types, such as line scan cameras, near infrared sensors and X-ray t
Jan 1, 2014
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Irgiredmet?s Experience On Research, Development And Introduction Of Heap LeachingBy Alexey P. Tatarinov
Under modern economic conditions in Russia, gold heap leaching is the most effective way of investing into gold-mining industry. Gold is recoverable from small-size deposits, low-grade ores from oxida
Sep 1, 2012
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Electrokinetic behavior of egyptian coal in the presence of some nonionic surfactantsBy E. Kusaka, M. EL Salmawy
"The electrokinetic behavior of EL Maghara coal has been investigated in the presence of nonyl and octyl nonionic surfactants containing polyethoxy of different sizes with trade names of Triton-X100 (
Jan 1, 2014
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Prospects creation technological systems electric pulse fracture ores based on new electrical baseBy H. Mengbing, A. Potokin, A. Usov
"Revealed and analyzed in the study are the ways of significant perfection of specific characteristics of the equipment, such as use of high-frequency voltage transformation to create a charger; use o
Jan 1, 2014
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Optimizing Automatic Control Systems of Flotation Process by Application of Computerized ModelsBy V. Avdochin
The main reason of flotation process fluctuations is mixing ores of various properties from various sections of a deposit. Other, also important reasons are changes in parameters of facilities of tech
Jan 1, 2014
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Leaching of Gold and Silver with Ferricyanide-cyanide SolutionBy F. Xie
Low gold and silver leaching kinetics has been commonly observed in traditional gold-silver cyanidation process, especially in those heap-leaching operations. The reactivity and availability of oxidan
Jan 1, 2014
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Surface Chemical Studies on Galena and Sphalerite Using Mineral-Adapted Bacillus Polymyxa (74686c29-3dc0-440f-856d-71337b05d999)By S. S. Indi, D. Santhiya, S. Subramanian, K. A. Natarajan
The interaction of sphalerite- and galena-adapted Bacillus polymyxa (B. polymyxa) cells with sphalerite and galena has been investigated through adsorption, electrokinetic and flotation studies. The a
Jan 1, 2003
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Aggregation Effect of ZN and MG Ions in Sulphide Mineral PulpsBy A. Buchanan, M. Mirnezami, A. L. Restrepo, J. A. Finch, M. S. Hashemi
Settling rate studies on slurries from Cu/Zn flotation plants occasionally revealed two aggregation maxima at pH 8-10 and 10-12. From measurements on sphalerite and silica suspensions the double maxim
Jan 1, 2003
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Efficient Elimination of Stubborn Slimes Using a HydrocycloneBy P. Saha, D. M. Chakrabarti, J. P. Srivastavam, P. Bhattacharyya, B. R. Sarkhel, Banerjeem B.
The phosphatic soil deposit at the Sukulu hills region of Uganda contains 10-12% P2O5. The ore occurs as a naturally degraded soil deposit containing a very sticky slime composed of earthy lateritic m
Jan 1, 2003
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Interpreting low energy attrition behaviour in a pilot mill using numerical modellingBy Nirmal Weerasekara, Malcolm Powell, Mohsen Yahyaei
"The conditions under which rocks become superficially damaged during the grinding process are not well understood. The main purpose of the work presented here is to understand how superficial breakag
Jan 1, 2014
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Effect of water composition on flotation of lead and zinc sulphide oreBy Gülay Bulut, Ünzile Yenial
"Water composition has a significant effect on flotation. A better understand the role of water composition in flotation is very important for process quality and performance. Based on source of proce
Jan 1, 2014
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Regulating galena deportment in a flotation poly-metallic plant by integrating continuous centrifugal technologyBy Bern Klein, Givemore Sakuhuni
Flotation is the dominant base metal extraction technique and it requires ore to be ground below the liberation size for effective recovery due to its dependence on mineral surface properties. For a p
Jan 1, 2014
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Electrokinetic/Reactive Barrier System For The Treatment Of Nitrate In Ground WaterBy Tasuma Suzuki
Electrokinetic/permeable reactive barrier system is a promising in situ soil and ground water remediation technique to reduce toxic NO3- into less toxic NH4+. Using granular zero-valent iron (Fe0) as
Sep 1, 2012
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Multi-Element Geochemistry for Bulk Mineral Characterization of Hydrothermal Alteration Associations in Porphyry Copper Deposits and Applications to Predictive Geo-Metallurgical ModelingBy Pamela Castillo, Marcia Muñoz, Rodrigo Luca, Brian Townley, Fernando López
In the present study we discuss the value of multi-element geochemistry as a tool for semi-quantitative to quantitative bulk mineral characterization in geological and geo-metallurgical modeling of po
Jan 1, 2018
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The Behaviour Of Cyanides And Thiocyanates Contained In Oxidized Gold-Bearing Ores During Their Disposal As Filtration CakesBy S. V. Petrov
Oxidised ores possess a significant share among raw materials which are treated by traditional plant technology. As usual, the chemical composition of these ores is rather simple. They can be treated
Sep 1, 2012
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Coal Effects in Combined Direct Reduction - Electrical Smelting of Iron OreBy P. Chris Pistorius, Johannes Sono, Rossouw Sono, J. J. Kobus
Different coal properties are important in SL/RN (coal-based rotary kiln) direct reduction of iron ore, and in electrical smelting of prereduced iron ore. These differences were highlighted when a pla
Jan 1, 2003