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Column Flotation For Fine Coal Recovery In India - A Techno Economic AssessmentBy K. P. Madhusudhanan, R. K. Bhatia, K. S. Narasimhan, R. N. Singh
A typical case study of a coal washery of capacity 500 t/h raw coal input has been presented and discussed with particular reference to the techno-economics for flotation column vis-a-vis the conventi
Jan 1, 1988
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Geometric and Physico-chemical Properties Determining Sulfide Oxidation Rates in Waste Rock DumpsBy Alan M. Ritchie, Paul Miskelly
The 2-D code FIDHELM has been used to simulate conditions in piles of pyritic material with vertical dimensions of 20 to 70 m and a horizontal dimension of 500m. Those properties of the pile and its e
Jan 1, 2000
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Case Study Of Longwall Mining Effects On Water WellsBy M. A. Trevits, R. J. Matetic
Mining operations have long been accused of causing a disruption to local, domestic and agricultural water supplies. More recently, concern for water supplies has increased with the advent of high-ext
Jan 1, 1993
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Control System For Mine VentilationBy Alexander Filimonov, Yury Bloshteyn
Ventilation of gas mines keeps necessary sanitation and hygienic conditions for labor in mines and increases the safety by dilution and removal of hazardous and dangerous gases in accordance with the
Jan 1, 1991
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Fine Grinding of Coal in a Two-Stage High-Pressure Roll Mill/Ball Mill Hybrid ModeBy A. De Daio, D. W. Fuerstenau, P. C. Kapur
Because of its pronounced tendency to undergo visco-plastic flow, coal ground in the energy- efficient high-pressure roll mill invariably comes out as a briquetted product which must be disintegrated
Jan 1, 1995
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Unconventional Mining-New Generation Of Mining Technology Of The XXIst CenturyBy Y. F. Vasyuchkov
In general a term "unconventional mining or "non-traditional mining technology" getting more and more familiar to the mining engineering media. There are several alternating terminological combination
Jan 1, 1997
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An overview of the Prairie Creek diamond- bearing intrusion, ArkansasBy S. L. Bolivar
The Prairie Creek intrusion, near Murfreesboro, AR, is the site of the most famous diamond mine in North America. Three major rock types are associated with the intrusion-a hypabyssal peridotite, a vo
Jan 1, 1987
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Constrained Interpolation and Soft KrigingBy A. G. Journel
The indicator random function formalism allows a common coding of hard numerical data, constraint intervals, and soft qualitative information as prior probability distributions. The soft kriging algor
Jan 1, 1986
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Selection of drying and calcining systems - an overviewBy C. R. Euston, B. T. Field, W. E. Lindquist
Pyroprocessing applications in the minerals industry range from low-temperature drying to high-temperature reactions. Material characteristics and process requirements range over a very broad spectrum
Jan 1, 2000
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Estimating Rippability by Rock Mass ClassificationBy Hardy J. Smith
The rock mass parameters which need be evaluated to estimate the rippability of rock are briefly outlined and their significance is discussed. Several methods used for estimating rippability are compa
Jan 1, 1986
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Drive and Brake Control Considerations When Using Fluid Couplings on Regenerative ConveyorsBy Derek G. Cieplinski
Regenerative conveyors with complex conveyor profiles place unusually stringent demands on the starting drive control. Depending on the nature of the conveyor loading, the drive must either provide a
Jan 1, 1993
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A Nonlinear Rheological Model for Time-dependent Behavior of Geologic MaterialsBy H. Reginald Hardy, Xiaoqing Sun
Rheological models are widely accepted as a means of describing the mechanical behavior of geologic materials. It has been found, however, that rheological models developed for a specific stress level
Jan 1, 1986
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Surface Complexation Of Calcium Minerals In Aqueous Solution 2. The Complexation Of Alizarin Red S At Fluorapatite- Water InterfaceBy Liuming Wu, Willis Forsling
The complexation of Alizarin Red S (ARS) at the surface of hydrous fluorapatite particles has been investigated at 25.0 C by means of potentiometric titrations, adsorption experiments in 0.1 M NaCI io
Jan 1, 1993
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Effect of ball mill size on media wearBy J. J. Moore, I. Iwasaki, L. A. Lindeke
Correlation of scale-up from small-scale batch laboratory mills to large-diameter industrial mills was established by performing two series of laboratory and pilot plant grinding tests using a magneti
Jan 1, 1988
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Classification effects in wet ball milling circuitsThe concept of classification in wet, closed circuit ball milling is expanded beyond the performance of the classifying equipment to include all aspects of the fines removal system of the grinding cir
Jan 1, 1987
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Purpose and TerminologyBy W. E. Horst
Raw materials and mineral products are crushed, ground, or pulverized for a variety of reasons. Some of the most important reasons for size reduction are: to liberate marketable mineral species from a
Jan 1, 1985
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Paste Tailings Management Alternative-Study Results For Molycorp’s Lanthanide Group Operations In Mountain Pass, CaliforniaBy J. M. Johnson, J. Vialpando, C. Lee
Since 1951, Molycorp has operated the Mountain Pass Mine in San Bernardino County, California to extract fourteen lanthanide elements, or rare earths, from a carbonate ore body. Wastes generated by t
Jan 1, 2004
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Minefill Applications, Practices and Trends in Canadian MinesBy D. DeGagné, E. De Souza, J. F. Archibald
A comprehensive survey of minefill practices in underground mines in Canada has been conducted. The survey was designed to cover the entire filling operation for individual mines from feed to the prep
Jan 1, 2001
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Development and Utilization of Innovative Tunnelling Techniques -Some of Which Have Been Developed from Those in Use with Large Diameter Tunnel MachinesBy Ing. E. h. Martin Herrenknecht
The paper will describe a number of developments and innovations now in use in microtunnelling machines. These include the use of fuzzy logic steering systems, the proven ability to successfully under
Jan 1, 1999
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An Analysis of the Data Obtained From Ventilation Studies of Longwall PanelsBy Brian S. Prosser, Ian J. Duckworth
With the trend in the coal mining industry pushing towards improved productivity and greater production, the number and size of longwall panels is increasing rapidly. The development and mining of lar
Jan 1, 1997