Search Documents
Search Again
Search Again
Refine Search
Refine Search
- Relevance
- Most Recent
- Alphabetically
Sort by
- Relevance
- Most Recent
- Alphabetically
-
An overview of the early history of the metallurgical industry in CanadaBy P. Tarassoff
Extractive metallurgy is concerned with the winning of metals from their ores and concentrates. It is therefore not unexpected that extractive metallurgy in Canada has always been closely linked with
Jan 1, 1999
-
Evolution in Panel Caving Undercutting and Drawbell Excavation, El Teniente MineBy P Yß±ez, G Ferguson
The El Teniente mine produces more than 340 000 tonnes of fine copper per year from an industrial complex of underground mine, concentrator and smelter. Mass caving methods are employed to deliver app
Jan 1, 2000
-
Applications of Digital Twin Technology in Productivity Optimization of Mining OperationsBy Javad Sattarvand, Milad Ghahramanieisalou
As new technologies are introduced to the mining industry, the challenges related to their safe assimilation and the potential changes they bring to mining techniques necessitate adjustments to the cu
Jun 25, 2023
-
The Role of Polymeric-Depressant-Induced Flocculation in Fine Particle FlotationSeveral inorganic reagents and organic polymers were tested as depressants in the single mineral flotation of ultrafine iron oxide and hydroxylapatite with Dowfroth 250 as a frother. It was observed t
Jan 1, 2004
-
The Effect and Measurement of Horizontal Stress in an Underground Limestone MineBy David Newman
"Horizontal stress can have a profound effect on the stability of an underground limestone mine. The presence of horizontal stress is usually determined once the mine has been developed and the orient
Jan 1, 2019
-
RI 7777 Effect Of Copper And Silicon On Selected Mechanical Properties Of Hot-Rolled Medium-Carbon SteelsBy Mark I. Copeland
The Bureau of Mines investigated the effect of up to 1 wt-pct of copper and silicon on the heat treatment response and hardness, tensile, and impact properties of hot-rolled medium-carbon steels. The
Jan 1, 1973
-
IC 8288 Water Requirements And Uses In Nevada Mineral Industries (ab851850-42c7-4f52-9b11-31efcf9628f3)By George H. Holmes
The water situation in Nevada mineral and related industries is described in this report. It contains information on the sources and adequacy of supply to current operators, requirements and uses, qua
Jan 1, 1966
-
Results of Discrete Event Simulation in a Large Open Pit Mine (01b83ee3-82e5-44b3-a9e0-f828c81066c7)By S. R. Dindarloo
"Truck-shovel systems are the dominant material loading and haulage machinery in open pit mining operations. Optimal selection, sizing, and allocation of this capital intensive equipment is highly des
Jan 1, 2015
-
Thermodynamic Modeling of the Mn-RE Systems for the Application of RE in Mg Alloy DevelopmentBy I-H. Jung, J. Kim
"Mg alloys are extensively used as light structural materials in modern industry. Mn and RE (rareearth) metals are effectively used as alloying elements to enhance the properties of Mg alloys. Therefo
Jan 1, 2012
-
Carbon Dioxide Accumulations in Geologic StructuresBy J. Charles Miller
NATURAL carbon dioxide has recently been exploited in the United States in consequence of oil and gas developments in the Western States and the growing demand by transcontinental and transoceanic shi
Jan 1, 1937
-
Recent Development In Sonoprocessing Of MaterialsBy Mamoru Kuwabara
A high-power sound which can transmit through any continuous elastic medium with less attenuation, particularly in liquid allows us to externally control the system of concern by using the acoustic ra
Jan 1, 2006
-
Technological Advances In Treating Copper Concentrates: The Intec Copper ProcessBy R. R. Bhappu
The metallurgical processing industry is in the midst of a hydrometallurgical revolution with mining companies looking for low cost, energy efficient and environmentally friendly technologies for proc
Jan 1, 1999
-
Economy And Efficiency In Reverberatory SmeltingBy C. D. Demond
IN reverberatory smelting, fuel is the chief item of expense, as it commonly is in processes using large percentages of it. Hence the most suitable supply is eagerly sought; that is, the supply which,
Jan 8, 1914
-
Application Of Ground Penetrating Radar To Evaluate The Extent Of Polyurethane Grout Infiltration For Mine Roof Control - A Case StudyBy William D. Monaghan, Michael A. Trevits
Over the period 2000 to 2003, roof falls have accounted for 4 to 14% of the fatalities in underground mining operations. The National Institute for Occupational Safety and Health (NIOSH) is conductin
-
Recent Developments In The Allowances For Percentage DepletionBy Frank H. Madison
The percentage depletion deduction on Federal Income Tax Returns under the provisions of the 1939 Internal Revenue Code and of Sections 611 to Section 615, inclusive, of the revenue act of 1954, have
Jan 1, 1958
-
The examination of air-borne dust in coal-mines for the evaluation of the possible health hazardBy D. G. Skinner, M. SC. Griffiths
"The natural difficulties associated with the size evaluation of dusts render absolute measurement difficult, or indeed, impossible. Assuming that the desirability of gravi metric sampling be conced
Jan 1, 1947
-
Anaconda's Experience With Percussion Longhole Drilling In Butte, MontanaBy P. J. G. du Toi
Anaconda's experience with percussion longhole drilling in Butte, Montana, has consisted of six phases: 1. Drilling horizontal blast holes in stopes with push feeds. 2. Ring and parallel blast
Jan 1, 1970
-
Automating cyanide measurement & control in highly variable complex copper gold ores by applying a modified potentiometric titration determinationBy Egonk Arriagada, Brindel Barzola, Peter Leckie, Greg Zwolak, Gilmar Guzmán, Germán Chen
Newmont’s Yanacocha operation in Peru presented an especially challenging environment for reliable cyanide measurement and control, processing 3 semi-distinct complex ore types with feed Cu ranging fr
Sep 30, 2022
-
The Economics of the Carbon in Pulp Treatment of Low Grade Flotation Tailings: A Pilot StudyBy R. H. O. Wagner
"This paper describes the bench testing, pilot plant studies of alternative flowsheets, to determine the feasibility of gold recovery, by carbon in pulp extraction, in the Schumacher Mill gold flotati
Jan 1, 1984
-
Human Resources : Management Training and its Role in Improving ProductivityThe optimisation of human resources provides the path to improving productivity. British Coal has the goal of competitiveness with a quality product in ensured supply. High class skilled professional
Jan 1, 1991