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Improvement of the Selective Comminution of a Low-Grade Schist Ore Containing Cassiterite Using a High Voltage Pulse Technology
By K. Bru, D. B. Parvaz
"Electric pulse fragmentation (EPF) is an innovative technology that uses high-voltage pulsed power (HVPP) for the selective comminution of the treated material. Highly energetic electrical pulses are
Jan 1, 2018
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Crystal Growth Modifiers in the Bayer Process
By J. J. Liu
In the Bayer process, control of alumina trihydrate particle size, oxalate stability and morphology and foaming is crucial for improving the yield and quality of alumina trihydrate. One way to econom
Jan 1, 2014
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Carbochlorination of Rutile, Titania Slag and Ilmenite in a Bubbling Fluidized-Bed Reactor
By John Nell, Paul den Hoed
Carbochlorination tests were conducted with matched particle-size fractions of rutile, ilmenite and high-titania slag in a small bubbling fluidized-bed reactor. The effects of temperature, the type an
Jan 1, 2003
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Adsorption of Sodium Oleate onto Spinel Oxides
By Raquel Franco de Souza Lima, Isao Matsuoka
"Microflotation studies and abstraction experiments were conducted with synthetic oxide spinels relating to chromite (MgCr2O4, FeCr2O4, FeFe2O4 and FeAl2O4), using sodium oleate as collector. An attem
Jan 1, 2003
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Leaching And Flotation Of Concentrate And Middlings In Flotation Circuits Of Carbonate - Shale Copper Ores
By A. Luszczkiewicz
An innovative hybrid technology for beneficiation of difficult-to-process sedimentary copper ores comprising acidic leaching stage of the feed combined with subsequent flotation has been presented. Ac
Sep 1, 2012
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Processing Ultramafic Low-grade Nickel Ores by Desliming-flotation
By Z. F. Dai
The Thompson Nickel Belt, located in Northern Manitoba, Canada, contains more than 400 million tonnes of ultramafic low-grade nickel mineralization in 9 deposits. One of these, the Pipe deposit, was m
Jan 1, 2014
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Problems of Cost-effective Use of Complex Gold Ores
By V. V. Lodeischikov
This paper covers some problems of treatment of complex gold ores and concentrates containing copper, lead, zinc, antimony and uranium. All these metals may present in ores both as major and associate
Jan 1, 2014
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Mechanisms of Thiobacillus Ferrooxidans Depressing the Floatability of Pyrite
By Yimin Zhu, Dezhou Wei, Haijun Liang, Zhifu Zhou
It has been fairly well established by many experiments that Thiobacillus ferrooxidans (T. ferrooxidans), also named Acidithiobacillus ferrooxidans(Kelly and Wood, 2000),can depress the floatability o
Jan 1, 2003
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Characterising the deleterious effect of phyllosilicate minerals on the copper flotation via froth stability analysis
By Bulelwa Ndlovu, Saeed Farrokhpay, Dee Bradshaw
The effects of phyllosilicate minerals on the flotation performance and froth stability of a copper ore was investigated. It was found that various phyllosilicate minerals affect the copper recovery d
Jan 1, 2014
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A New technology on Preparation Anhydrous Scandium Chloride Molten Salt in Extracting Sc from Rare Earth
By G. F. Zhang
Yunnan mineral is a kind of containing Ta-Nb rare earth deposit, the most potential economic valuable element in it is Sc, and raw mineral has 17.0 g/t Sc. Take the character of Sc into account, the k
Jan 1, 2014
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Some Reflections on the Future of Mineral Processing Education
Much has been published in recent years on the challenges facing the engineer of the 21st century and the consequent challenges facing the education providers and industry. The world is changing rapid
Jan 1, 2014
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Thin Film Studies on Silica in Mixed Cationic-Anionic Surfactant Solution
By Ljudmil S. Grigorov, Eric Forssberg, Hanumantha Rao Kota, Robert J. Pugh, Lidia B. Alexandrova
"We have used the microscopic thin balance developed by Scheludko at al. (1970) technique to study the stability and interactions within the thin film between the silica surface and air bubble with (i
Jan 1, 2003
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Tecflotetm – Novel Chemistry for New Sulfide Collectors. A Selective Collector at Natural Ph for Pyrite Rich Ores and Ores Containing Sulfides, Gold, Silver and Platinum Group Elements.
By A. Lewis
"Thiol collectors including the xanthates and dithiophosphates have dominated the sulfide mineral processing industry for over a century. Tecflote represents completely different chemistry, without su
Jan 1, 2018
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Selection Decomposition of Metallurgical Slags by Va-part-impact Devices
By I. V. Shadrunova
Annually it is formed more than 95 Mt of clinkers in iron and steel industry of Russia, including 79 Mt of clinkers in blast-furnace, steelmaking, foundry and ferroalloy productions. Complex developme
Jan 1, 2014
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Modification of Structural – Chemical and Technological Properties of Rare – Metal Minerals under the Influence of High – Power Electromanetic Pulses (e8c64e75-8fbe-4aa0-8eac-9306751fe616)
By E. V. Koporulina, I. Zh. Bunin, M. V. Ryazantseva
"We studied the mechanism of structural and chemical transformations of columbite, tantalite, zircon and feldspar surface during the treatment by high – power electromagnetic pulses (HPEMP) using the
Jan 1, 2018
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Removal of Microcrystalline Opaline Silica from Bentonite by Ultrasonic Treatment
By J. Seo, W. Kim, I. Bae
"Microcrystalline silica impurities such as quartz and opal-CT commonly associated in bentonite should be controlled and removed as far as possible when bentonite is used as biocompatible raw material
Jan 1, 2018
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Ecological Monitoring of Waters Mining Industry Having Technogenesis as a Basis for Selecting Strategy and Technology of their Processing
By N. N. Orekhova, I. V. Shadrunova, N. G. Novikova, N. ?. Volkova
The purpose of the research is scientific substantiation and formulation of strategy and technical solutions of handling liquid wastes of plants producing and refining copper-zink pyritic ores. In the
Jan 1, 2018
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Production Of Agglomerates From Iron-Containing Fines From The Asr-Recycling Processes For Its Use In Blast Furnace
By Jens Markowski
The EU Directive 2000/53/EC on end-of life vehicles (ELVs) states that in 2015 at least 85 wt.-% of a vehicle has to be reused or recycled. This result in the obligatory need to separate additionally
Sep 1, 2012
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Review of flotation batch test procedures and scale-up - implications of entrainment
By Patricio Berrios, David Barriga, Peter Amelunxen, Gerson Sandoval, Roger Amelunxen
Laboratory test equipment and methods have undergone relatively little change since their introduction in the 1950’s. The Denver sub-A cell is still by far the most commonly used laboratory batch cell
Jan 1, 2014
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Modification of Structural – Chemical and Technological Properties of Rare – Metal Minerals under the Influence of High – Power Electromanetic Pulses
By E. V. Koporulina, I. Zh. Bunin, M. V. Ryazantseva
"We studied the mechanism of structural and chemical transformations of columbite, tantalite, zircon and feldspar surface during the treatment by high – power electromagnetic pulses (HPEMP) using the
Jan 1, 2018