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  • SME
    Study Of Geometrical Properties Of Blocks In A Jointed Rock Mass Using Statistical Geometry

    By Violetta Pavlova

    Knowledge of geometrical properties of blocks in a hard jointed rock among other things is of considerable importance for prediction of rock mass behavior and for its exploitation. This paper presents

    Jan 1, 1992

  • TMS
    Recovery Of Metals From Copper Smelter Furnace Flue Dust

    By H. H. Law

    Large amounts of waste material in the form of flue dust are generated in the operation of copper smelter furnaces. As a result of increasingly stringent disposal, it has become important to develop m

    Jan 1, 1992

  • DFI
    Pile Installation Overcomes Numerous Problems At Rocket Motor Component Manufacturing Facility - Introduction

    By Jon H. Gould

    This paper describes the following at the new Advanced Solid Rocket Motor (ASRM) nozzle manufacturing facility, which is being constructed inside an existing manufacturing facility: 1) generalized sub

    Jan 1, 1992

  • TMS
    Kinetic Studies on the Deoxidation of Low Carbon Steel with Aluminum and Ferroaluminum

    By Filippos Patsiogiannis

    Laboratory size (4.5 kg) low carbon steel melts were deoxidized using Al and FeAl (33% Al), with and without synthetic fluxes, in alumina and zirconia crucibles. The dissolved oxygen, total oxygen, so

    Jan 1, 1992

  • SME
    Exciting Trends For An Ideal Mineral Process Simulator

    By Kal V. S. Sastry

    Mineral processing simulation has come a long way since its beginning about thirty years ago. With our increased understanding of mineral process systems and the advent of new software and hardware te

    Jan 1, 1992

  • SME
    Separated Kriging And Stochastic Simulation In Planning And Coal Content Production Control

    By Simona Markic

    With the aim of environment protection the program package HOMOGEN is used for realizing the planning and noxious components control in the coal produced. Using the program package PRIPREMA the divisi

    Jan 1, 1992

  • AUSIMM
    The Bureaucratic Merry-Go-Round

    The bureaucracy in Victoria has worked against exploration and mining development. There is no doubt that the new Mineral Resources development Act has simplified matters on the mining side of the sys

    Jan 1, 1992

  • SME
    Effect Of Sodium Chloride On Flotation Of Dolomite From Apatite

    By D. Ince

    Flotation of dolomite from apatite was investigated, using dodecylamine hydrochloride or sodium oleate as the collector, with and without inorganic modifiers such as sodium chloride. Separation of do

    Jan 1, 1992

  • NIOSH
    RI 9438 - Effectiveness of Iron-Based Fuel Additives for Diesel Soot Control

    By H. William Zeller, T. E. Westpha1

    The U.S. Bureau of Mimes evaluated the effects of two iron-based fuel additives on diesel particulate matter (DPM) emissions. The 5.6-L, six-cylinder test engine is typical of engines used in undergro

    Jan 1, 1992

  • AUSIMM
    Sidewall Fracturing in Coal Room and Pillar and Pillar Extraction Panels

    In coal room and pillar, and pillar extraction panels, the sidewall conditions were investigated based on underground measurements and numerical simulations. Three-dimensional linear elastic model

    Jan 1, 1992

  • SME
    Phelps Dodge Chino Smelter Effluent Metal Recovery

    By E. H. Partelpoeg, B. G. Belew

    In 1990, the Chino Smelter completed the construction of a plant designed to recover metal values and water from smelter scrubber effluent. Equipment was installed to maximize effluent recycling and m

    Jan 1, 1992

  • NIOSH
    IC 9331 Longwall Gate Road Roof Instability And Methods Of Control In The Lower Kittanning Coalbed Of Central Pennsylvania

    By E. R. Bauer

    This report presents the results of a cooperative study between BethEnergy Mines Inc., Ebensburg, PA, a central Pennsylvania coal mining company, and the U.S. Bureau of Mines to investigate longwall d

    Jan 1, 1992

  • SME
    Multiple Objective Optimization Of A Coal Grinding Process Via Simple Genetic Algorithm (SGA)

    By R. K. Mehta

    This paper presents the application of a simple genetic algorithm (SGA) to a coal slurry grinding process in order to find the optimum set of conditions under which the desired slurry properties can b

    Jan 1, 1992

  • TMS
    Processing of Stannous Wolframite by Carbothermic ReductionlCarburisation

    By D. C. Azubike

    Wolframite (FeWO4) usually having cassiterite (SnO2) as a major impurity is a primary source of tungsten. Its direct reduction/carburisation with carbon in the temperature range 1000-1400°C, and with

    Jan 1, 1992

  • SME
    Pyrite Recovery Mechanisms In Coal Flotation

    By S. K. Kawatra

    In most operating coal-cleaning plants, a significant amount of pyrite is recovered in the froth during flotation of high-sulfur coal. Reducing the pyrite recovery first requires that the primary reco

    Jan 1, 1992

  • CIM
    Post Start-Up Modifications to the Golden Bear Roaster

    By S. McCalpine, W. Muir, P. J. Downey

    "Golden Bear Operating Company Ltd. (GBOC) was a joint venture between Chevron Minerals Ltd. and North American Metals Corp. that was formed for the development of the Golden Bear Project. The mine is

    Jan 1, 1992

  • SME
    A Model for Floor Stability Analysis

    By P. Tsang, S. S. Peng

    Mine floor failures, such as floor heave and floor buckling, occur frequently in underground coal mines where soft mine floor exists. The types of failure can usually be classified into two categories

    Jan 1, 1992

  • SME
    Real-Time Process Control Using Object Oriented Expert Systems

    By Lynn B. Hales, Randy A. Yncbausti, Rick Smith

    Object oriented programming has been developed to model the way we think about the world. It allows higher levels of abstraction, generalization and classification than many other programming techniqu

    Jan 1, 1992

  • SME
    Measuring Departure From Gaussian Assumptions In Spatial Processes

    By Mario E. Rossi

    The concept of entropy is classical in thermodynamics and information theory. Its potential use as a measure of the ordering of a spatial system is discussed. Although entropy has been discussed previ

    Jan 1, 1992

  • AUSIMM
    Brown Coal Resource Evaluation - A Case Study of the Loy Yang Deposit

    By Hibbert W. D, Lottrey A

    The behaviour of coal in a process is a function of both the coal properties and the processing conditions. In the case of the Loy Yang coal deposit, extensive testing has been undertaken to determi

    Jan 1, 1992