Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
Analysis of Mixed Grade Transition in Continuous Thin Slab Casting with EMBR
By J. H. Ahn, J. K. Yoon, Jung-Eui Lee
"A concentration change during grade transition operation in steel thin slab casting is predicted with computer simulation, water model and plant trial. Fluid flow and mixing patterns in various tundi
Jan 1, 2000
-
Study On Electrolysis For Neodymium Metal Production
By Jong Hyeon Lee, Go-Gi Lee, Chang-Kyu Lee, Hong Youl Ryu, Sung-Koo Jo
This study deals with research on the reduction process of neodymium oxide by molten salt electrowinning. Neodymium fluoride and lithium fluoride electrolyte were used for feed stock of electrolyte an
Jan 1, 2015
-
Vaporisation Studies. On Copper Converter Dust Possibilities For A Selective Dust Condensation From Copper Converter Gas
By Caisa Samuelsson
Experimental studies in laboratory-scale equipment have been carried out to study the vaporisation from dust generated during the copper converting process. In the present work the vaporisation of Zn,
Jan 1, 1998
-
A Nitric Acid Route in Combination with Solvent Extraction for. Hydrometallurgical Treatment of Chalcopyrite
By G. Bjorling
After complete dissolution of chalcopyrite concentrate in sulphuric acid in presence of nitric acid the excess of the latter is expelled by a surplus of concentrate and the last traces of nitrate remo
Jan 1, 1976
-
Parameters and Petrographic Interpretation of In Situ Copper Leaching
By William J. Mallio
Substantial differences between in situ and conventional technology require that in situ ore grade be established for deposit as distinct from the total contained metal value. Establishing an in situ
Jan 1, 1981
-
The Use of the Population Balance for Modelling Metallurgical Systems (3e9dd819-c9af-4968-852d-bcd73648b915)
By E. T. White, Dean Ilievski
"The population balance is one of the basic relations for analysing particulate mineral processing operations. It is an exact relation. The principles of the population balance are reviewed and applic
Jan 1, 1996
-
The Kivcet Furnace Construction at Portovesme
By A. Perillo
The process, realized in. the Kivcet furnace, can convert continuously lead concentrates, residues and secondary lead bearing materials into a lead bullion free of sulphur and a discardable slag. The
Jan 1, 1990
-
Development in Percolation Leaching with Ammonium Thiosulfate for Gold Extraction of a Mild Refractory Ore
Heap leaching with thiosulfate is only used in one location for the treatment of a refractory preg-robbing gold ore initially pre-treated with bio-oxidation. The chemistry of thiosulfate leaching is c
Jan 1, 1999
-
Use of Cement-Bonded Agglomerates as Burden Material for Blast Furnaces
By Maneesh Singh
During the various stages of iron & steel production a number of iron-rich by-products are generated. The traditional way to recycle them back to the blast furnace has been the balling - sintering pro
Jan 1, 2003
-
Comparative Study on the Metal Aluminum Produced from Alumina by Carbothermic Reduction and Carbothermic-Chlorination
By Qingchun Yu, Bin Yang, Yong Deng, Heng Xiong, Fei Wang, Minxiu Chen
"Metal aluminum produced by non-electrolysis process received much attention due to its lower energy consumption. In this paper, carbothermic reduction and carbothermic-chlorination of alumina in norm
Jan 1, 2013
-
Carbothermic Reduction and Leaching of Manganese Ores from the West-Central Arkansas District
By W. K. Connor, O&apos
The Bureau of Mines has conducted beneficiation, carbothermic reduction, and leaching tests of Mn oxide ores as part of its evaluation of the Mn and Co resources of the West- Central Arkansas District
Jan 1, 1992
-
Chemical Improvement of Coal Burnt Ash and Slag for Reutilizing as Acid Gas Absorbents
By H. Matsuda, T. Iwashita, H. Awata, H. Liwei, D. Hirabayashi, Y. Saito, S. Ozawa, Y. Goto
"The present study is concerned with investigating the effect of chemical treatment on enhancing the HCl absorption capacities of coal burnt ash and slag. It was found that the HCl absorption capacity
Jan 1, 2000
-
Tensile Properties Of Epoxy Composites Reinforced With Continuous Palf Fibers
By Giulio R. Altoé, Sergio N. Monteiro, Ygor M. Moraes, Rômulo L. Loyola, Frederico M. Margem, Gabriel O. Glória
The tensile properties of DGEBA/TETA epoxy matrix composites reinforced with different amounts of PALF fibers were evaluated. Composites reinforced with up to 30% in volume of long, continuous and ali
Jan 1, 2015
-
Flotation of Sulfides
By M. C. Furerstenau
Adsorption behavior of various surfactants on sulfide minerals is very much affected by the nature of the surface of the mineral. Since sulfides are naturally meta-stable, oxidation occurs when they a
Jan 1, 1993
-
Microwave Absorption Characteristics Of Tire
By Yuzhe Zhang, Xiaodi Huang, Xinli Wang, Bowen Li, Matthew Andriese, Jiann-Yang Hwang, Zhiwei Peng
The recycling of waste tires has been a big environmental problem. About 280 million waste tires are produced annually in the United States and more than 2 billion tires are stockpiled, which cause fi
Jan 1, 2015
-
Simulation Of Imperial Smelting Furnace Operation Using A Mathematical Model (Invited)
By Kenji Matsuzaki
A mathematical simulation model of the Imperial Smelting Furnace operation has been developed for purpose of improving the furnace operation. The model consists of top, shaft and bottom regions, Analy
Jan 1, 2003
-
Automated Gaspe Puncher
By W. Dutton, D. Simms
"The clearing of tuyeres on copper and nickel converters or similar metallurgical, vessels has, for many years, been done using mainly a manually- operated ""puncher"". One such device is the ""Gaspe
Jan 1, 1989
-
Laboratory Scale Investigation of the Electrowinning of Chromium from Chrome-Alum Electrolyte
By Robert Vidal
The performance of a laboratory-scale cell for the electrolysis of an aqueous chrome alum solution was studied. Electrode potentials, pH, and Eh were recorded. An optimum catholyte pH of about 2.5, co
Jan 1, 1994
-
Trace Element Analysis of Precious Metals in Minerals by Time-of-Flight Resonance Ionization Mass Spectrometry (TOF-RIMS)
By Stephen Chryssoulis, Stamen Dimov
Detection and quantification of precious metals (Au, Pd, Pt, and Rh) in spinels and silicate minerals is important for establishing the maximum attainable recovery by sulphide flotation. To achieve th
Jan 1, 1999
-
Separation of Arsenic from Nickel
By A. S. Block-Bolten
Two innovations in nickel-arsenic separation have been studied on a laboratory scale. The first requires only a nitric acid atmospheric leach without preliminary roasting and leads to favorable final
Jan 1, 1982