Search Documents

Search Again

Search Again

Refine Search

Publication Date
Clear

Refine Search

Publication Date
Clear
Organization
Organization
  • SME
    Drill & Blast Implementation Case Study at Multiple Freeport-Mcmoran Sites

    By L. Gutierrez, S. Gering, C. Calderon-Arteaga

    "Drill and blast represent the most important, and sometimes the costliest processes in the mine. The cost of drilling and blasting operations greatly contributes to the “high cost trends of the overa

    Jan 5, 2017

  • SME
    Benefits of a Good Quality Assurance Program to an Electric Utility

    By W. J. Mahoney

    A good quality assurance program at a coal mine or power plant is accurate, timely and consistent. The quality analysis is accurate due to a complete sampling of the coal stream loaded into the unit t

    Jan 1, 1994

  • SME
    Evolution Of Sag Mill Shell Liner Design At Kennecott Utah Copper’s Copperton Concentrator

    By D. W. Partridge, W. Lamb, A. E. Lamb, S. Bird

    Due to the constant need to improve SAG mill performance and efficiency, extensive research into all aspects of SAG mill optimization has been performed. This paper will review the current evolution

    Jan 1, 2002

  • SME
    Integrating Hydro-Fracturing Technology And Geophysics Into 3d Mapping And Extraction Of Metals In Heap Leaching; Hydro-Jex And High Resolution Resistivity ?.

    By Seal. Thom

    Large heap leach operations around the world contain significant under-leached metal values that present recovery challenges to operators. The first challenge is to find the location of the highest

    Jan 1, 2008

  • SME
    Reduction Mechanism Of Chromite Spinel With Carbon

    By A. B. Hazar-Yoruç

    Ferrochromium produced by smelting chromite ores is an important alloying component in the steel industry. Ore, coke and fluxes are mixed and reacted in an arc furnace for a smelting process of ferroc

    Jan 1, 2007

  • SME
    Overview of NFPA 502 Standard for Road Tunnels, Bridges and Other Limited Access Highways, 2008 Edition

    By William Connell

    NFPA 502, Standard for Road Tunnels, Bridges and Other Limited Access Highways establishes minimum fire protection and fire life safety requirements for road tunnels, bridges and other roadways where

    Jan 1, 2008

  • SME
    Probable Cost Estimating and Risk Management

    By John Reilly

    Costs of complex/underground projects have been consistently underestimated and delivery on time and on budget has been problematic. This has been attributed, to inadequate cost estimates and unidenti

    Jan 1, 2008

  • SME
    Design Risk Mitigations for Contract CQ028 of the East Side Access Project

    By Samer Sadek, David I. Smith, Wai-shing Lee, Jeffrey L. Rice, Avelino Alonso

    INTRODUCTION East Side Access (ESA) Contract CQ028 is located in the New York City Borough of Queens. The contract involves construction of a 230-meter (760-foot) long open-cut excavation with a p

    Jan 1, 2007

  • SME
    The Successful Implementation Of An Expert System On An Alumina Calcining Kiln

    By D. Lawrence, H. Lawrence, G. Saevil

    Plant operators in the mineral processing industry have been implementing expert systems for several years now, with the intent to increase production and reduce costs. Most systems have been installe

    Jan 1, 2002

  • SME
    Are Estimators Getting It Right? Comparing Actual And Estimated Costs

    By J. Leinart

    As is readily apparent, the reliability of the early-stage costs estimated for any mining project are critical to the viability of that project. An estimate too high might leave a potentially profitab

    Feb 27, 2013

  • SME
    Experimental research on the behavior of ventilation air around shafts during a fire

    The safety of personnel is the most important matter during a mine fire. However, there is not enough research on a case when a fire occurs near a shaft and the behavior of the fire gas is not well un

    Jan 1, 2009

  • SME
    Geology Of Wyoming's Powder River Coal Field

    By G. B. Glass

    In 1996, 92.5% or 233 Mt (257.4 million st) of coal produced in Wyoming came from the Wyodak coal zone in the eastern Powder River Coal Field. While the mined portions of the zone consist of one to th

    Jan 1, 1998

  • SME
    Medium-Temperature Pressure Leaching Of Copper Concentrates - Part II: Development Of Direct Electrowinning And An Acid-Autogenous Process

    By J. O. Marsden

    Part I in this series of papers considered the chemistry of medium-temperature pressure leaching of copper sulfide concentrates and reviewed the metallurgical testing and initial process development f

    Jan 1, 2007

  • SME
    A Life-Cycle Approach to Coal Resource Analysis: Examples From the Appalachian and Illinois Basins – Preprint 97-25

    By R. C. Milici

    Historical production data and reserve decline rates can be used both to predict future coal production rates and to estimate when the reserve will be depleted. Reserve estimates inferred herein from

    Feb 24, 1997

  • SME
    Caterpillar Moves Forward With F Series Mining Trucks

    The largest investment in mining equipment in Caterpillar?s history ? The F series mechanical and electrical drive trucks ? is rapidly advancing. Caterpillar showcased the 793F and 797F mechanical dr

    Jan 1, 2009

  • SME
    Impacts of Geotechnical Issues on Design of the Beacon Hill Tunnel and Station Project

    By Michael S. Kucker, Stuart Warren, Robert A. Robinson, Michael J. Lehnen, David McAllister

    Geotechnical conditions exposed by the phased exploration programs have had a major impact on the selection of excavation and support methods, dewatering requirements, size of openings, vertical align

    Jan 1, 2005

  • SME
    Kennecott Utah Copper Smelter Modernization

    By C. J. Newman

    Before 1995, the smelting process at the Kennecott Utah Copper Corp. (KUCC) smelter consisted of Noranda reactors and Pierce-Smith converters. When considering expansion, it was decided that the exis

    Jan 1, 1999

  • SME
    Statistical Significance Of Some Operating Parameters On Dolomite Removal From Phosphate Using Amphoteric Collector

    By A. M. Elmahdy

    An amphoteric collector was tested for dolomite removal from phosphate ore. The effects of some operating parameters and their significance on the flotation of dolomite were studied using statisticall

    Jan 1, 2007

  • SME
    ISO 9000 Gains Ground in the Industrial Minerals Industry

    By Tim O’Neil

    ISO 9000 is a system of quality standards that originated in Europe in the 1980s and has since been widely adopted by manufacturing companies throughout the world. The ISO 9000 standards have received

    Jan 1, 1995

  • SME
    Roof Deformation Associated with Mining of Two Panels in Steeply Dipping Coal Seam Using Subsurface Subsidence Prediction Model Mining, Metallurgy and Exploration and Physical Simulation Experiment (1cbe2caf-b863-422d-8af1-56b552bbfc8f)

    By Panshi Xie, Xicai Gao, Yi Luo, Youfu Zeng, Yongping Wu, Shenghu Luo

    This research investigates roof deformation and failure characteristics, as well as mechanical interaction between the panels of the roof strata above two adjacent working faces in a steeply inclined