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Pilot Scale Test Program To Define Gravity Recoverable Gold And Concentrate Grade For A Ryan Lode Ore Milling Circuit
By PDF
Previous work has shown that significant, free milling gold values exist in the Ryan Lode ore. This project used pilot scale equipment to estimate the percentage of gold recoverable by gravity methods
Jan 1, 1995
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Near-technical Limit Gold Recovery From A Double Refractory Carlin-type Ore After Pretreatment By High-temperature Pressure Oxidation
By DEVY DYSON, Brian Hart, JOHN LANGHANS, Stamen Dimov, STEVE YOPPS
A recent Nevada Gold Mines research program focused on the pressure oxidation (POx) pretreatment of a Carlin-type double refractory ore from the Turquoise Ridge Mine. The research team found that both
Nov 1, 2022
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Controlling Ventilation For Safe Escape From Coal Mine Fires (PRIPRINT 93-369)
If a fire occurs outby an underground coal mine section, the immediate safe evacuation of miners from the working section should always be the first action during the rescue operation. Unfortunately,
Jan 1, 1993
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Performance Evaluation Of Indicator Kriging In A Gold Deposit (8ef5dd29-2251-4b58-b433-e9bb93fccdcb)
By Y. C. Kim
The strongly skewed grade distributions and the need to estimate the local recoverable reserves in a selective mining environment are the two problems that Ordinary Kriging (OK) cannot easily handle.
Jan 1, 1986
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Modeling and optimization of aqueous mineral carbonation for cement kiln dust using response surface methodology integrated with Box-Behnken and CCM
By MOHAMED WAEL, ANASTASIA GOEVA, ABDULAZIZ TAWFEEQI, IHTISHAM TARIQ, S. M. ZAKIR HOSSAIN, NIAZ ALI KHAN, MUHAMMAD FAISAL IRFAN
Carbon dioxide (CO2) mineral carbonation is a carbon capture and storage (CCS) technique that can sequester CO2 permanently in the form of durable carbonate minerals. Extendable permanent storage capa
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Oxide Reduction Processes in The Preparation of Rare-Earth Metals
By C. K. C. K. Gupta
The rare earths in elemental form are required for a variety of scientific and technological purposes. They are not easily obtained in this form, due to the great chemical stability of the rare-earth
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Gold Recovery Optimization Of A Refractory Concentrate By Ultrafine Grinding ? A Laboratory Study
By J. A. González-Anaya
This laboratory work presents a study of the effect of ultrafine grinding on the gold recovery of a highly refractory gold concentrate. The particle size of the concentrate was P80 = 46 µm and the mai
Jan 1, 2011
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Application Of Four Collector Dispersion Techniques In Coal Fine Flotation Processes
By F. F. Peng
For a given flotation system, the rate-controlling step in fine coal flotation can be the attachment of bubble to the fine coal particles. The probability of attachment depends upon the surface charac
Jan 1, 1992
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Application Of The Shrinking Core Model For Copper Oxide Leaching (SME-AIME Fall Meeting & Exibit St. Louis, Missouri, October 19-21, 1977 )
By John L. Shafer
Often an in situ leach is the only practical economic method for copper recovery from small low grade oxide deposits. The decision to develop a copper property by an in-situ blast and leach is strongl
Jan 1, 1977
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Cone Crusher Design - The 2390 Omnicone
By U. S. Sawant
During the last few years, Process Machinery Division, Rexnord, has conducted extensive research on the effects of cone crusher variables such as speed, throw and cavity design on the productivity of
Jan 1, 1987
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Problems And Solutions In Surface Subsidence Monitoring Using A Total Station
By Y. Luo
Surface subsidence monitoring is the most effective means for investigating the nature of, and developing the techniques for predicting, the surface movement and deformation process. However, because
Jan 1, 1992
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Design Considerations For The Henderson Project Tailing And Mill Process Water System ? Introduction
By William W. Shriver
When the Henderson Project is completed in 1975, it will become one of the Free World's largest primary molybdenum producers. The Henderson Mine will be located approximately 50 miles west of Den
Jan 1, 1970
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Its Everyones Business
By Scott Lawson
BOB FALCONER: Our next topic leader is Scott Lawson. Scott is manager of human resources for Independence Mining Company, Cripple Creek and Victor Gold Mining Company, Victor, Colorado. Scott has 25 y
Jan 1, 1998
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Isothermal and Non-Isothermal Reduction Behaviors of Iron Ore Compacts in Pure Hydrogen Atmosphere and Kinetic Analysis "Mining, Metallurgy & Exploration (2021)"
By Meng Li, Hao Nie, Weitian Ding, Mamdouh Omran, Ying Li, Yao Ge, Yaowei Yu, Abourehab Hammam, Lei Zan
This study examines the isothermal and non-isothermal reduction behaviors of iron ore compacts in a pure hydrogen atmosphere and compares the results obtained during the reduction process by CO. The d
Sep 29, 2020
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Advanced Materials And Trends In The Material Composition Of Product
By M. C. Roberts
The material composition of product is defined as the quantity of metal used per unit of product manufactured during a year. This ratio measures the efficiency of converting a ray material into final
Jan 1, 1990
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Numerical Simulation of the Relaxation Behavior of Failed Sandstone Specimens "Mining, Metallurgy & Exploration (2020)"
By Yuting Xue, Brijes Mishra
The relaxation test on sandstone specimens showed typical behavior in pre-failure region and stepwise behavior in the postfailure region. Overall, more significant stress relaxation occurred within th
Jun 25, 2020
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Surface Chemistry Considerations in the Flotation of Rare-Earth and Other Semisoluble Salt Minerals
Semisoluble salt minerals are characterized by their ionic bonding and are distinguished from soluble salt minerals by their limited solubility in water. One group of semisoluble salt minerals being c
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A Comparative Study of Two Centrifugal Concentrators
By A. R. Laplante
In this paper, the performance of the Knelson Concentrator and of the batch and continuous Falcon Concentrators are compared. The units are based on different operating principles, and perform quite d
Jan 1, 1993
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Cyanide Speciation by Automated Kelada Methods, and Comparison with Manual Standard Methods for Total Cyanide
By Kambhampati C. Rao, Cecil Lue-Hing, Nabih P. Kelada, William B. Willborn
improvements in the analytical techniques for cyanide speciation can furnish useful information about the behavior of the different cyanide species in the receiving environment. This could be of help
Jan 1, 1992
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A Comparative Evaluation Of Rock Bolt Anchors
By Robert M. Cox
The principal factor that must be determined for the effective design of a coal mine roof bolt support system is the maximum stable tension that can be developed with a given bolt assembly in a partic
Jan 1, 1977