Volume 232
Society of Mining Engineers of AIME
1965
Coal, Economics, Industrial Minerals, Geology, Geological Engineering, Geophysics, Geochemistry, Mining Rock Mechanics, Minerals Beneficiation
Title Page
Foreword by Jack M. Ehrhorn, President
Contents

Coal

TITLE AUTHOR
Advanced Work on the Determination of Coke Stability from Coal Hardgrove Grindability Index, Bulk Density, Pulverization Level and Volatile Matter J. W. Leonard
A Study of the Precision of Coal Sampling, Sample Preparation and Analysis S. J. Aresco and A. A. Orning
Design and Operation of Thickening Equipment for Closed-Water Circuits in Coal Preparation Plants L. A. Dale and D. A. Dahlstrom
Determination of Quantities Needed in Coal Sample Preparation and Analysis G. E. Keller
Removal of Sulfur Dioxide from Flue Gases: the BCR Catalytic Gas Phase Oxidation Process A. E. Zawadzki
The Preparation of Coal Refuse for the Manufacture of Light Weight Aggregate R. W. Utley, H. L. Lovell and T. S. Spice

Geology, Geological Engineering

TITLE AUTHOR
Engineering Geology of Union Electric Co.'s Taum Sauk Pumped Storage Project, Missouri W. C. Hayes
Geology Applied to the Study of Coal Mine Bumps At Sunnyside, Utah F. W. Osterwald and C. R. Dunrud
Heaving in the Subgrade of Highways Constructed on the Mancos Shale R. C. Hepworth
Iron Ores of the Ophthalmia Region, Western Australia J. M. Neilson

Geophysics and Geochemistry

TITLE AUTHOR
Isotopic Dating of Arizona Ore Deposits R. L. Mauger, P. E. Damon and B. J. Giletti
Some Problems in Geothermal Exploration T. S. Lovering

Industrial Minerals

TITLE AUTHOR
Gypsum Deposits in Northern Indiana Gypsum Deposits in Northern Indiana
Potential Uses of Wet Processed Wollastonite K. D. Burnham and E. Wainer
Why Geology in the Cement Industry? K. N. Weaver

Minerals Beneficiation

TITLE AUTHOR
Activation of Beryl and Feldspar by Fluorides in Cationic Collector Systems R. W. Smith
A Discussion of Metallurgical Testing Procedures in Use at Pima Mining Co. D. C. Shelton
An Automatic Analysis and Control System Adapted to Magnetic Separation for Instructional Laboratory Use J. N. Roco, G. A. Parks and B. G. Zambre
A Statistical Experimental Design and Analysis of the Extraction of Silica from Quartz by Digestion in Sodium Hydroxide Solutions R. L. Stone, S. M. Wu and T. D. Tiemann
Calcium Ion Measurements Provide Insights to Anionic Flotation of Silica A. F. Colombo, R. T. Sorensen and D. W. Frommer
Chrysocolla Flotation by the Formation of Insoluble Surface Chelates H. D. Peterson, M. C. Fuerstenan, R. S. Rickard and J. D. Miller
Contribution to the Science of Electrostatic Separation-Dielectric Forces in Inhomogeneous Fields V. C. P. Morfopoulos and N. Arbiter
Effect of Impurities on the Flotation Behavior of Zinc Oxide A. L. Mular
Effect of Suspending Fluid Viscosity on Batch Mill Grinding (TN) W. A. Hockings, M. E. Volin and A. L. Mular
Energy-Size Analysis of Phosphate Rock Grinding G. E. Agar
Infrared and X-Ray Diffraction Study of the Activation of Beryl and Feldspar by Fluorides in Cationic Collector Systems R. W. Smith and T. J. Smolik
Infrared Spectroscopic Studies of Xanthate Adsorbed on Zinc Sulfide T. Yamasaki and S. Usu
Interaction of Starch and Calcium in Soap Flotation of Activated Silica from Iron Ores I. Iwasaki
Lead Activation in Sulfonate Flotation of Quartz M. C. Fuerstenau and S. Atak
Metal Ion Activation in Xanthate Flotation of Quartz M. C. Fuerstenau, J. D. Miller, R. E. Pray and B. F. Perinne
Method of Calculating Rate of Discharge from Hoppers and Bins J. R. Johanson
Primary Magnetic Separator Specifications J. E. Forciea and R. W. Salmi
Radioactive Tracers to Define Operating Characteristics of a Kiln Scrubbing Tower and a Dry Grinding Air Classification Mill J. R. Coleman and W. F. Sullivan
Rate of Dissolution of Manganese Dioxide in Sulfurous Acid A. P. Herring and S. F. Ravitz
San Manuel's New Process for the Recovery of Molybdenite H. K. Burke and J. F. Shirley
Silver-Palladium as an Indicator of Thermal Gradients in Pellet Induration H. W. Hitzrot, L. V. Fegan and R. H. Limons
Starches and Starch Products as Depressants in Soap Flotation of Activated Silica from Iron Ores I. Iwasaki and R. W. Lai
The Relationship Between Sharpness of Classification and Circulating Load in Closed Grinding Circuits R. T. Hukki and H. Eklund
The Role of Inorganic Ions in the Flotation of Beryl K. V. Viswanathan, V. M. Karve, J. Y. Somnay and K. K. Majundar
The Statistical Theory of Primary Breakage Distributions for Brittle Materials R. R. Kimpel and L. G. Austin
The Supercritical Trammel Screen R. T. Hukki and P. Voutilainen

Rock Mechanics

TITLE AUTHOR
A Comparison of Explosives by Cratering and Other Methods L. D. Sadwin and W. I. Duvall
A Preliminary Theory of Static Penetration by a Rigid Wedge into a Brittle Material B. Paul and D. L. Sikarskie
Glass Insert Stressmeters K. Barron
Indexing Analysis for Plastic Rock J. B. Cheatham, Jr
Maximization of Footage Drilled Before Drill Steels Fail in Fatigue B. Paul and C. C. Fu
Orthotropic Relations for Rock Mechanics S. Boshkov, M. T. Wane and R. Agarwal
Seismic Energy Available from Rockbursts and Underground Explosions W. I. Duvall and D. E. Stephenson
Seismic Study of Coal Mine Bumps, Carbon and Emery Counties, Utah C. R. Dunrud and F. W. Osterwald
Stress Conditions under which Core Discing Occurs L. Obert and D. E. Stephenson
The Effect of Anisotrophy on the Determination of Dynamic Elastic Constants of Rock W. I. Duvall
The Effect of Friction on the Strength of Model Coal Pillars P. G. Meikle and C. T. Holland
The Influence of Geological Factors in the Stability of Highway Slopes C. J. Leith

Underground Mining

TITLE AUTHOR
Investigation of Segregation and Compressibility in Discharged Fill Slurry F. A. Jerabek and H. L. Hartman

Technical Notes

TITLE AUTHOR
Extraction of Silica from Certain Siliceous Iron Ores by Digestion in Sodium Hydroxide Solutions T. D. Tiemann
On Estimating the Parameters of the Gaudin-Meloy Equation H. T. McAdams
Upgrading of Slack Coal P. A. Toynbee and D. G. Wilson

Discussion of Papers

TITLE AUTHOR
A Discussion of Metallurgical Testing Procedures in Use at Pima Mining Co. D. C. Shelton, Discussion by C. S. Ek
Glass Insert Stressmeter K. Barron, Discussion by I. Hawke
Hydraulic Transport of Broken Coal A. P. Pipilen, M. Weintraub and A. A. Orning, Discussion by W. D. Haentjens
The Effect of Lightweight Aggregate, Physical and Chemical Characteristics on the Properties of Portland Cement Concrete Mixtures R. S. Barney back, Jr. Discussion by E. L. Howard

Corrections

TITLE AUTHOR
Discussion of Metallurgical Testing Procedures in Use at Pima Mining Co D. C. Shelton
Isotopic Dating of Arizona Ore Deposits R. L. Mauger, P. E. Damon and B. J. Giletti
Some Problems in Geothermal Exploration T. S. Lovering

INDEX

TITLE AUTHOR
Index