TRAIL - Technical Report Archive and Image Library

Laboratory investigation of sulfurous acid leaching of kaolin for preparing alumina

Methane drainage study using an underground pipeline, Marianna mine 58

Crushing techniques for pneumatic concentration of mica

Evaluation of synthetic fluorspar in BOF slags

Treatment of Florida surface waters for use in phosphate beneficiation

High-pressure shrouded water sprays for dust control

Hydrogen sulfide generation by reaction of natural gas, sulfur, and steam

Analysis of pillar stability on steeply pitching seam using the finite element method

Bentonite-bonded rammed olivine and zircon molds for titanium casting

Laboratory analysis of pozzolan (fly ash) concrete

Protection factors of the airstream helmet

Subsidence over four room-and-pillar sections in southwestern Pennsylvania

Magnetic properties of alloys containing mischmetal, cobalt, copper, iron, and magnesium

Recovery of principal metal values from electrolytic zinc waste

Hydrogen chloride sparging crystallization of aluminum chloride hexahydrate

Recycling of waste magnesite-chrome refractories from copper smelting furnaces

Guidelines for selecting seismic detectors for high-resolution applications

Water jet perforation :a new method for completing and stimulating in situ leaching wells

Recovery of copper and associated precious metals from electronic scrap

Evaluation of the seismic system for locating trapped miners

Pyrometallurgical recovery of chromium from scrap metals :laboratory studies

Modification of a commercial atomic absorption spectrophotometer for cold-vapor determination of mercury

A pyrometallurgical method for processing Ni-Cd scrap batteries

Characterization and beneficiation of phosphate-bearing rocks from northern Michigan

Recovery of byproduct heavy minerals from sand and gravel operations in Oregon and Washington

Automatic and continuous transducer drift compensator for endpoint detection systems

Reducing dust at longwall shearers by confining the dust cloud to the face

New twin scrubber installation for continuous mining machines

Convergence measurements for squeeze monitoring :instrumentation and results

The water spray cooler :an update

Minerals and the Tokyo Round of the MTN

State regulations pertaining to the use of internal combustion engines underground

Preventing large-battery explosions

Monitoring ground movements near caving stopes :methods and measurements

Extracting uranium from carbonaceous ores

Beneficiation of potential platinum resources from southeastern Alaska

Recovery of aluminum hydroxy sulfate from aluminum sulfate solution by high-temperature hydrolysis

Suppression of coal dust explosion by water barrier in a conveyor belt entry

Low pressure leaching of Duluth complex matte

Alternative methods for copper recovery from dump leach liquors

Preparation of platinum-palladium flotation concentrate from Stillwater complex ore

Electrochemical determination of Gibbs energies of formation of cobalt and nickel sulfides

Airblast instrumentation and measurement techniques for surface mine blasting

Mineral industries of Latin America

High angle conveyor study

Mineral-resource potential of the lower San Francisco RARE II further planning and wilderness recommendation areas, Greenlee County, Arizona, Grant and Catron counties, New Mexico

Control of water pollution from surface mining operations

Comminution by the Attrition Grinding Process

Beneficiation of a hematitic taconite by reduction roasting, magnetic separation, and flotation

Dolomite refractories and their potential as substitutes for imported chromite

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