Search Documents
Search Again
Search Again
Refine Search
Refine Search
- Relevance
- Most Recent
- Alphabetically
Sort by
- Relevance
- Most Recent
- Alphabetically
-
McDermitt, Nevada - McDermitt Mine History Of DiscoveryBy L. O. Storey
The McDermitt mine was found as a separate mercury ore-bearing occurrence approximately 305 m (1000 ft) northeasterly and in a different geologic setting from the old Cordero mine, which had been the
Jan 1, 1985
-
Alternatives For Developing Country Mining FinanceBy Stephen Zorn
INTRODUCTION The process of financing mining projects in developing countries has changed greatly in the past 15 years. New methods of financing, notably the use of syndicated Eurocurrency project
Jan 1, 1985
-
Coal mining in the Edmonton districtBy T. Patching
"THE FOLLOWING notes on coal mining in the Edmonton city area are based, in the main, on scattered reports and accounts as little coal mining has been done in this area for about 20 years and few peop
Jan 1, 1985
-
AluminaBy W. D. Elston, A. E. McLaughlin, G. B. Hampton, W. L. Barham, J. F. Murphy, W. H. Cundiff, J. W. Mulloy, R. G. Breuer, J. W. Shaffer
Introduction Alumina (aluminum oxide) is the material from which all the world's aluminum is produced. In the Western World, all the alumina is made from bauxite by the Bayer process. In t
Jan 1, 1985
-
Preparing The Section Foreman For His Full Responsibilities (d286b901-c48c-461e-8c03-6c7625dfdf28)By R. L. Grayson
The health and safety of employees, efficiency of the operating system and production are paramount goals in underground coal mining. The section foreman assumes responsibility for making his part of
Jan 1, 1985
-
Presidential Address - 1985 Can Professionalism Survive in Our Changing Society?The society in which we live is one of change, and we professionals are part of that society. The importance of this simple and obvious statement is often overlooked. My Presidential Address examines
Jan 1, 1985
-
OFR-118-85 Development Of Self-Contained Self-Rescuer And Enhanced Electrical Hazard Training MaterialBy Michael J. Klishis
It was the goal of this project to develop training materials specific to two areas of the mining industry: (1) safe use and care of the self-contained self-rescuers, and (2) awareness and avoidance o
Jan 1, 1985
-
RI 8905 Sulfapave: Densifiable Sulfur Concrete Materials for Corrosive EnvironmentsBy W. C. McBee
Technology for the preparation of densifiable sulfur concrete (sulfapave) materials has been devised by the Bureau of Mines. The materials are intended as new construction materials for use in corrosi
Jan 1, 1985
-
Development of Techniques for the Study of Flash Smelting Reactions Using Differential Thermal Analysis and ThermogravimetryBy Davies S. G, Jayaweera A
The oxidation of nickel sulphide and copper sulphide concentrates, and coal, has been studied under non-ignition and ignition conditions using Differential Thermal Analysis (DTA) and Thermogravimetry
Jan 1, 1985
-
The Rate Of Pyrite Recovery During Coal FlotationBy H. B. Oblad
Coal/pyrite fines were froth floated in a laboratory cell to examine the rate of pyrite recovery during conventional coal flotation. The effects of collector, particle size and carbon to total sulfur
Jan 1, 1985
-
RI 8922 - Recovering Zinc-Lead Sulfide From a Geothermal BrineBy L. E. Schultze
The Bureau of Mines devised a technique to recover a Zn-Pb concen-trate from a geothermal brine. More than 99 pct of the Zn and Ph was precipitated by treating the brine with H2S and controlling the p
Jan 1, 1985
-
Flocculation Kinetics Of A Bituminous Coal ? IntroductionBy K. N. Han
Coal is becoming increasingly important as a major energy source in the face of the world's depleting energy mainly based on oil reserves. Coal is by far the most abundant fossil fuel both in the
Jan 1, 1985
-
Mill Sizing For Phosphate Grinding In Mills Of 0.2 To 5 Meters In Diameter (d139b3f1-183b-4de8-a58f-300e7f63761f)By Reed S. C. Rogers
The breakage parameters of phosphate ore were determined by batch first-order grinding studies in a laboratory ball mill according to the procedures described in the text by Austin, Klimpel and Luckie
Jan 1, 1985
-
RI 8992 - Exhaust Ventilation of Deep Cuts Using a Continuous-Mining MachineBy Jon C. Volkwein
The Bureau of Mines, Foster-Miller Inc., and Beaver Creek Coal Co. have evaluated the ability of a new system to ventilate a 40-ft-deep cut. A remote-control continuous-mining machine, in a 7-ft-thic
Jan 1, 1985
-
Silver Flotation from the Kidd Creek Grinding CircuitBy W. M. Scheding
"There has recently been a resurgence of interest in unit flotation of mill discharges. At the Kidd Creek concentrator, this technique has been successfully applied to silver flotation in a 3050 mtpd
Jan 1, 1985
-
-
Productivity And Equipment Selection In Surface Mining Of Oil SandsBy R. K. Singhal
A variety of mining equipment is used in the mining of oil sands by surface mining. This includes bucket wheel excavators, draglines, hydraulic shovels and off-highway trucks. This paper examines the
Jan 1, 1985
-
IC 9029 Continuous Radiation Working-Level DetectorsBy R. F. Droullard
The Bureau of Mines has used gross alpha and gross beta detectors to continuously measure radiation working levels for a number of years. During this time, improvements have been made in the design an
Jan 1, 1985
-
Technical Note - Polygonal Blocks of Influence in Triangular Grids (7b8a5598-0e35-4903-9cf3-ac2957008841)Tasker (1985) has detailed the accepted practices for constructing polygonal blocks of influerrce in the estimation of ore reserves. Further he suggests that users might fall into traps such as omissi
Jan 1, 1985
-
Overview Of Extenders And FillersBy James J. Fallon
I'm glad this meeting is being held in New York. First, because the city is close to my home in New Jersey, only 35 minutes from Times Square ..... if I were to come to Times Square between two a
Jan 1, 1985