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A Evolução Da Qualidade E Os Efeitos Sobre A Produtividade Da Laminação A Frio Usiminas – Usina De Cubatão
By Fabio Tavares Chamonge
Este trabalho visa mostrar os principais benefícios alcançados na qualidade dos produtos e a evolução da produtividade nas linhas de produção da Laminação a Frio com a estabilização operacional da nov
Aug 16, 2017
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A Evolução Do Emprego De Carbureto De Cálcio No Refino Secundário Das Siderúrgicas Brasileiras
By Leonardo Silva Motta
O carbureto de cálcio tem sido empregado em novas tecnologias para desoxidação e dessulfuração de aços de maneira crescente. A metodologia consiste na realização de um cronograma de projeto contendo d
Jul 30, 2018
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A Face To The Future Innovations In Excavating Equipment
By Richard L. Wedertz
Although the physical appearance of excavating equipment doesn't seem to have radically changed over the past decade, important changes within the products and an innovative attitude on the part
Jan 1, 1973
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A Factorial Study of Gold Leaching in Temperature Controlled Thiosulfate Solutions Containing Copper and Meso-2,3-Dimercaptosuccinic Acid
By L. Fernandes
A factorial study was performed to investigate the relative effects of temperature, copper concentration and meso-2,3-dimercaptosuccinic acid (DMSA) concentration on the performance of thiosulfate lea
Jan 1, 2014
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A Factorial Study of the Effects of Polytetrafluoroethylene Addition, Pulp Density and Oxygen Pressure on the Performance of Pressure Oxidation of Chalcopyrite under Conditions Similar to Those of the CESL Process
By L. Fernandes
A two level factorial study was undertaken to investigate the relative impacts of factors affecting the kinetics of polytetrafluoroethylene, PTFE, assisted pressure oxidation of chalcopyrite. A copper
Jan 1, 2014
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A Fault-Diagnostic Expert System For Longwall - Shearer
By Sukumar Bandopadhyay
A present dominant problem is that of high downtime of the longwall shearer used in the coal production process. The means by which this problem can be overcome are many, but one of, the most importan
Jan 1, 1989
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A Feasibility Study For The Detection Of Weak Electromagnetic Signal/ Bursts With Hard-Limited Arrays
By M. Kanefsky, A. Q. K. Rajput
Two channel polarity coincidence and polarity difference statistics are analyzed. The signal, common to both channels, consists of sinusoidal bursts where the exact frequency of the signal is nearly k
Jan 11, 1981
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A Feasibility Study For The Production Of Filter Aids From Kansas Volcanic Ash ? Introduction
By William R. Hess
Volcanic ash, although a little-used Kansas resource, is available in forty counties with estimated, reserves of more than 20 million tons. It was first produced in Kansas in the early 1900?s but not
Jan 1, 1965
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A feasibility study of ferrochromium extraction from Bird River concentrates in a submerged-arc furnace
By W. Dresler
"A major Canadian chromite deposit at Bird River, Manitoba is one of the largest known chromite reserves in North America but it exhibits low chromium contents and low chromium to iron ratios. Commerc
Jan 1, 1986
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A Feasibility Study Of Recycling Of Manganese Furnace Dust
By R. Shen
This paper presents results of a feasibility study of recycling manganese furnace dust generated in production of ferromanganese and silicomanganese at Tasmanian Electrometallurgical Company, Australi
Jan 1, 2007
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A feasibility study on the reclamation of coal waste dumps by bacterial leaching
By R. G. L. McCready, Marco Zentilli
"Brogan coal containing mean averages of 6,93% w/w total sulphur (1.1% sulphate sulphur, 1.6% organic sulphur and 4.24% pyritic sulphur) and 16.34% mineral ash was used as the test coal in these studi
Jan 1, 1985
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A feasibility study on the use of desulphurized tailings to control acid mine drainage
By D. Bois, P. Poirier, B. Bussière
Environmental desulphurization is an attractive alternative for the management of acid generating tailings. Bulk sulphide flotation is the most commonly used method to produce desulphurized tailings,
Jan 1, 2005
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A Feasibility Study on the Use of Desulphurized Tailings to Control Acid Mine Drainage
By Mostafa Benzaazoua, Bruno Bussière, Philippe Poirier, Denis Bois
"Environmental desulphurisation is an attractive alternative for the management of acid generating tailings. Non selective froth flotation is the most commonly used method to produce desulphurized tai
Jan 1, 2004
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A Feasibility Study On Using Beneficiated Slimes And Fines For Pelletization
By S. K. Chaurasiya
o meet the ever increasing demand of iron oxide feed stock for rapidly growing domestic steel industries and to effectively manage the depleting reserve of high grade lumpy iron ore, Pelletization of
Sep 1, 2012
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A Feasibility Study Simulating Superconducting Magnetic Separators For Weakly- Magnetic Ores
By Yehia M. Eyssa
A "straight wire" flow through magnetic ore separator has been designed, built and successfully used to separate magnetite from typical slurries. The purpose of these experiments was to simulate the h
Jan 1, 1974
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A Few Aspects of the Connections between Ore Mineralogy and Flotation Results at Hitura Nickel Mine in Finland
By R. L. Keiski, H. Miettunen
"The serpentinite massifs of Hitura are located in the municipality of Nivala in Central Finland. The most important sulfide minerals in the ore are pentlandite, pyrrhotite and chalcopyrite. The ore b
Jan 1, 2015
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A Few Notes, On The Future Work Of The Petroleum Geologist In The Mid-Continent Oil Fields
By Dorsey Hager
THE possibilities of finding new oil pools in Oklahoma and Kansas are far from promising. In 1916, the only new pools of importance were the Franchot pool near Bixby, the Garber, and the Billings poo
Jan 10, 1917
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A Few Observations on Mine Surveying and Surveying Instruments
The principles of geometry and trigonometry are so continuously used by mining engineers for the purpose of accurately and intelligibly recording their measurements, that the writer is prompted to lay
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A Few of the Adverse Conditions Encountered in Mining Coal in the Utah Field
By J. B. Forrester
In the operation of the coal mines in Utah few adverse conditions confront us. Physical conditions for the economical extraction of the coal are as near perfect as it is possible for them to be. Still
Jan 1, 1921
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A few remarks on storage of low temperature materials in rock caverns
By N. Kinoshita, Y. Inada
The authors have proposed and discussed storage of low temperature materials such as LNG, LPG and frozen food in rock caverns. In this case, as the rock mass around the caverns will receive effects of
Jan 1, 2003