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Process Design For Control Of Sludge Production From Wet Phosphoric Acid Processing ? I. IntroductionBy Paul L. Bearden
The accumulation, handling, and utilization of sludges formed from wet process phosphoric acid is one of the major problems in the industry. The purpose of this paper is to explain some of the cons
Jan 1, 1966
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Geology And Distribution Of Clay Deposits For Building Bricks And Roofing Tiles In ChileBy Anibal Gajardo
Clays for building bricks and roofing tiles in Chile are classified as common clays and ball clays, with deposits of sedimentary and residual origin, both Cenozoic in age. Deposits are known from no
Jan 1, 2001
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Application Of The Quartz Crystal Microbalance With Dissipation Method To A Study Of Oleate Adsorption Onto A Hydroxyapatite SurfaceBy J. Kou
The adsorption process, density and structural property of the oleate layer adsorbed onto a hydroxyapatite (HAP) surface at six different concentrations and three pHs (pH 8, 9 and 10) have been studie
Feb 1, 2012
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The Use Of Nonel Primates For Blasting Initiation In Tunnel Driving And Shaft SinkingBy Peter P. Harvey
The Nonel Primadet is a non-electric blasting initiation device. The system incorporates the safety advantages of a cap and fuse system with the precision blasting afforded by electrical blasting caps
Jan 1, 1979
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Back Injuries In Underground Coal Mining And Their Relation To Job Design ? IntroductionBy Terrence J. Stobbe
On the job injuries to the musculoskeletal system are probably the oldest of the industrial safety problems. Long before we had pinchpoints to guard, chemical vapors to ventilate, and noise to enclose
Jan 1, 1984
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Integrated Air Sampling For Radon Daughters In Mines Using The Cryogenic Air Sampling MethodBy P. T. Perdue, F. F. Haywood
INTRODUCTION Monitoring devices used for detecting and measuring airborne radon in mines are limited due to the rugged environment in which they must operate. Personnel monitors now available are e
Jan 1, 1981
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The Application Of Prompt Neutron Activation Technique For The On-Line Analysis Of Phosphate Rock SlurryBy Brij M. Moudgil, Shoulian Zhu, J. L. Pinault
A new technique, prompt neutron activation probe (PNAP), for analyzing phosphate rock slurry in-situ was evaluated both in the laboratory and at the plant. The technique yielded a high precision in th
Jan 1, 1993
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A Laboratory and Pilot Plant Program for the Development of a Solvent Extraction ProcessBy Geoff W. Seward, Charles J. Maes
INTRODUCTION The work of the metallurgical engineer engaged in developing a leach, solvent extraction electro- winning process usually begins in the laboratory and generally proceeds via pilot pla
Jan 1, 1986
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Short-term schedule optimization with nonlinear blending models for improved metallurgical recovery in miningBy Clayton Vernon Deutsch, Marcel Antônio Arcari Bassani, João Felipe Coimbra Leite Costa, Vanessa Cerqueira Koppe, Pedro Henrique Alves Campos
Traditional linear approaches oversimplify the complexities of ore blending. Adopting nonlinear blending models in mining and mineral processing is critical to enhancing prediction accuracy and allowi
Jan 1, 2025
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Flash Flotation For Improved Gold Recovery At Freeport Indonesia (95f153f6-9429-49d2-854b-561ec17268c6)By Jr. McCulloch
Mining operations of Freeport Indonesia (FI) are located approximately 4 degrees -6' south latitude, 137 -7' east longitude in Irian Jaya the eastern most state of Indonesia (Figure I). The
Jan 1, 1989
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Gas Source Discrimination Methods To Identify The Occurrence Of A Hypothetical, Unconventional Gas Well Breach Into A Nearby Longwall Mine - SME Annual Meeting 2022By E. Watkins, S. J. Schatzel, K. Ajayi, V. Gangrade
The National Institute for Occupational Safety and Health (NIOSH) has been conducting research related to unconventional gas wells positioned in abutment pillars associated with active longwall mining
Mar 2, 2022
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Evaluation Of Pumpability From Process DataBy John H. Paugh
Hydraulic slurrying and pumpability characteristics of phosphate matrix (ore) have not been quantitatively defined. An elemental triangular diagram analysis of rock/sediment texture is used to classif
Jan 1, 1981
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A Review of the Grouting Online 2 of the Cairo MetroBy Donald P. Richards, David W. Campo, Michel Coudry
This paper presents a review of the grouting works of Line 2 of the Greater Cairo MetroSystem. The Nile River alluvial deposits underlying this ancient city provided for a challenging and sometimes di
Jan 1, 1997
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The Spektakel Mill - Past History and GeologyBy A. L. Hannaford
Previous production at Spektakel was undertaken during the periods 1854 - 1888 and 1892 - 1901. During this period a total of 41,7 kt of ore grading 32% Cu was hand-sorted from 270 kt to 360 kt of ore
Jan 1, 1981
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Dust Control in Longwall MiningBy Harry Elkin
Control of coal dust has long been an important aspect in the conventional mining of coal; the main reasons being from a health and disaster standpoint. With the advent, of mechanized longwall mining,
Jan 1, 1967
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Solvent Extraction of Vanadium from Sodium Carbonate–Sodium Bicarbonate Solution Using Aliquat-336 "Mining, Metallurgy & Exploration (2020)"By Chunlin He, Xinsheng Li, Feng Yang, Lu Han, Yuezhou Wei, Feng Gao
The solvent extraction of vanadium (V) from Na2CO3–NaHCO3 solution was attempted using Aliquat-336 (methyltrioctylammonium chloride) extractant dissolved in sulfonated kerosene as diluent with 2-octan
Jul 30, 2020
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Measuring And Managing Dust And Nanoparticulates In Pyrometallurgical ProcessingBy C. Copeland, S. Kawatra
Airborne particulates can be generated by combustion processes, comminution, or materials handling, and regulation of these particulates by EPA are becoming progressively more stringent. Regulations
Jan 1, 2007
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Gold recovery from alkaline cyanide solutions by electrochemical elution of strong-base anionic polymeric resinsBy V. A. L. Breguncci, A. H. Martins, C. P. Ribeiro Jr.
This work presents experimental results for the recovery of gold present in alkaline cyanide solutions by using the electroelution technique of strong-base anionic polymeric resins IRA 402-CL from Rho
Jan 1, 2002
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Acid-Base Accounting To Predict Post-Mining Drainage Quality on Surface MinesBy J. Simmons, P. Ziemkiewicz
Acid-Base Accounting (ABA) is an analytical procedure that provides values to help assess the acid-producing and acid-neutralizing potential of overburden rocks prior to coal mining and other large-sc
Jan 1, 2003
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Intercultural Assessment, Training, and Development: A Must for International Assignees and Their Families ©By Michael F. Tucker
Dealing successfully with intercultural issues is critical for success on an international assignment. This is true not only for employees but for the accompanying spouses and children as well. This p
Jan 1, 2001