Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
Exploitation Of A Massive Low Grade Zinc-Lead Resource At Rosh Pinah Zinc Corporation, Namibia
By S Rupprech, T Lund, H Fourie, PH van Rooyen, NM Vegter
Rosh Pinah Zinc Corporation (Pty) Ltd (RPZC) operates an underground mine at Rosh Pinah in southern Namibia producing zinc and lead sulphide concentrates. It currently mines around 0.7 Mtpa run-of-min
Jan 1, 2007
-
Platinum Promotion Of Au/Al2O3 Catalysts For Glycerol Oxidation: Activity, Selectivity And Deactivation ? Synopsis
By M. Royker
Gold has been demonstrated as a possible catalyst for oxidation reactions. Some evidence for a possible promotion effect of platinum has also been recorded. The influence of platinum as promoter for A
Jan 1, 2012
-
Voidfill material strength behaviour and underground application
By S. Z. Pethö, H. Yilmaz
South Deep Mine is currently undertaking numerous voidfilling projects using low strength aerated cement products. Representative samples from one such site, were taken and tested for the load deforma
Jan 1, 2003
-
The Recovery Of Copper From A Pregnant Sulphuric Acid Bioleach Solution With Developmental Resin Dow XUS43605 - Synopsis
By C. J. Liebenberg
This paper focuses on the application of ion exchange technology for the recovery of copper from a leach solution originating from a heap bioleach in which base metals are leached from a low-grade ore
Jan 1, 2013
-
In-Pit Crusher Location as a Dynamic Location Problem
By M. Paricheh, M. Rahmanpour
"The cost efficiency and high reliability of semi-mobile or combined in-pit crushing-conveying (IPCC) and truck systems, compared to conventional truck-shovel systems alone, make them more attractive
Jan 1, 2017
-
Strategic Long Term Planning In Mining - Synopsis
By G. L. Smith
The fundamental challenge facing mineral and metal companies is how to create sustainable value while operating within mandated strategic bounds, identified constraints, and variable market and econom
Jan 1, 2012
-
Strategic Long Term Planning In Mining ? Synopsis (287252bf-313f-4c0f-98fd-28fa4c30c9b7)
By G. L. Smith
The fundamental challenge facing mineral and metal companies is how to create sustainable value while operating within mandated strategic bounds, identified constraints, and variable market and econom
Jan 1, 2012
-
Conceptual Use of Vortex Technologies for Syngas Purification and Separation in UCG Applications
By J. F. Brand, J. C. van Dyk, F. B. Waanders
"Syngas from Africary’s Theunissen underground coal gasification (UCG) project will be used for power production and synthesis of liquid fuels and commodity chemicals. However, some of the coal compon
Jan 1, 2018
-
Rockbursts in the period of mining activity reduction in Ostrava-Karvina Coalfield
By V. Velicka, J. Ptacek, R. Snuparek, P. Konecny, G. Takla
Coal mining in Ostrava-Karvina coalfield is being accompanied by rockbursts. 82 rockbursts occurred within the period between 1990 and 2002. Natural and technological factors from these rockbursts wer
Jan 1, 2003
-
What boundary conditions should we apply? Applications to tunneling and to the AECL Underground Research Laboratory
By B. Amadei, F. Tonon
Rock stress measurement is cast in the more general context of the determination of boundary conditions for rock engineering. A study on the effect of elastic anisotropy on underground excavations rev
Jan 1, 2003
-
Investigation Into How the Magnesia, Silica, and Alumina Contents of Iron Ore Sinter Influence Its Mineralogy and Properties
The influence of varying amounts of magnesia, silica, and alumina in iron ore sinter on its mineralogy, reducibility index (RI), reduction disintegration index (RDI), physical breakdown (AI and TI), a
Jan 1, 2010
-
Notices South African Council of Professional Engineers
The Registrar has requested us to publish the following notices: COUNCIL'S POLICY REGARDING LATE APPLICATIONS IN TERMS OF SECTION 18(4) (b) OF THE PROFESSIONAL ENGINEERS' ACT, 1968 (ACT N
-
Alternative Support Systems For Mechanized Stopes
By D. P. Roberts
The stoping of platinum orebodies in the Bushveld has in the past been accomplished by using in-stope pillars to ensure stability of the workings. In the future, the use of continuous mining machines
Jan 1, 2005
-
Development of weightometer soft sensor
By K. Coleman, C. Visser, N. Selby, X. W. Pan, T. Letwaba
A prototype weightometer soft sensor is under development at DebTech, De Beers in partnership with Venetia Mine. Its main function consists of an online data source; data validation; dynamic weightome
Jan 1, 2003
-
SMR Geomechanics classification: Application, experience and validation
By R. Romano, E. Montalar, J. B. Serón
The SMR geomechanics classification system (adaptation of RMR for slopes) is reviewed with data from 87 actual slopes in Valencia. In a research project, SMR has been applied by a GIS system, as a met
Jan 1, 2003
-
Thermal Effects On Carbon Based Electrodes Close To A High Current Electric Arc
By J. A. Bakken, M. T. Jonsson, G. A. Saevarsdottir, H. Palsson
The electrodes of a Submerged Arc Furnaces carry a high current and are subject to enormous stresses caused by both the electric arc itself, and the current distribution within the electrode. The exte
Jan 1, 2007
-
Studies of load transfer mechanism for rock-socketed pile
By P. He
Abstract This paper introduces tested results of rock-socketed pile in Nanjing, Wuhan and Chongqing. From a force- transfer model, a distribution of axial force for pile-body and inlaid resistance for
Jan 1, 2003
-
Outsourcing in the Mining Industry: Decision-Making Framework and Critical Success Factors
By C. J. H. Steenkamp
Theoretically, the main driver behind a mining operations? sourcing decision should differ from company to company, and within a company from project to project, but in reality it often relates to cos
Jan 1, 2014
-
Casting And Cooling/Crushing Of Silicon Metal And Silicon Alloy At Bécancour Silicon Inc.
By D. Ksinsik, R. Boisvert, D. Leblanc
Casting, cooling and crushing/sieving of ferroalloys has followed a well-established pattern in the whole ferroalloys industry for many years. Usually liquid metal or alloys are cast into flat open m
Jan 1, 2004
-
Effect of the strain rate and water stauration for the tensiles strength of rocks
By I. Matsunaga, K. Aoki, W. -j. Jung
Blasting is widely used in mining and basic construction because of its speed and economy to destroy the rocks. Blasting has the advantages of reduced excavation costs and shorted construction time wh
Jan 1, 2003