Browse TRAIL Inventories

Stratification in water quality in inundated anthracite mines, eastern Pennsylvania

Economic evaluation of borehole and conventional mining systems in phosphate deposits

Characteristics of the OTOX model CTL oxygen sensor

Cost estimate of the Bayer process for producing alumina, based on 1982 equipment prices

Costs and effects of environmental protection controls regulating U.S. phosphate rock mining

Passive encoder for range knobs

Evaluation of alumina extraction from coal waste :composition and availability

Economic and technical evaluation of the sulfurous acid-caustic purification process for producing alumina from kaolinitic clay

New techniques for reducing stopping leakage

Fresnel lens blind area viewers for improved mine equipment safety and productivity

Guidelines for siting product-of-combustion fire sensors in underground mines

Rates of chlorination of aluminous resources

Minerals data source directory, January 1983

Safety in the use and maintenance of large mobile surface mining equipment :proceedings: Bureau of Mines Technology Transfer Seminars, Tucson, AZ, August 16, 1983, Denver, CO, August 18, 1983, and St. Louis, MO, August 23, 1983

A dynamic gas-mixing system

A ball-on-block impact-spalling wear test and results on several iron alloys

Novel coal-cutting bits and their wear resistances

Beneficiation of a western Mesabi nonmagnetic taconite after reduction roasting with lignite

Experimental drift linings in a block-caving operation :a field demonstration

Magnetic properties of synthetic mischmetal alloyed with cobalt, copper, iron, and magnesium

Coal-cutting forces and primary dust generation using radial gage cutters

Problems in the control of anthracite mine fires :a case study of the Centralia mine fire (August 1980)

Electrochemical determination of thermodynamic properties of manganese sulfate and cadmium oxysulfate

Use of foam for dust control in minerals processing

Recovery of alumina from anorthosite by an HC1-F-gas sparging crystallization process

Evaluation of radium and toxic element leaching characteristics of Florida phosphogypsum stockpiles

Thermal and electrical ignitability of dust clouds

Factors affecting the dissolution of gypsum-bonded roof bolts

Testing modified coal-cutting bit designs for reduced energy, dust, and incendivity

Physical property data on coarse anthracite waste

Concrete crib design and field testing

Correlation of LANDSAT and air photo linears with roof control problems and geologic features

The generation, collection, and analysis of welding fumes

Synthetic fluorspar flux in the basic cupola :evaluation of operation and fluorine volatility

Kettlebottoms :their relation to mine roof and support

Copper-manganese-base silverless brazing systems

Above-the-earth field contours for a dipole buried in a homgeneous half-space

Factors affecting the preparation of misted clay feed and solids-liquid separation after HCl leaching

Mechanical properties of some portland cement concretes made with coal and coal waste as aggregates

Dewatering of coal-clay waste slurries from preparation plants

Percolation leaching of a chalcopyrite-bearing ore at ambient and elevated temperatures with bacteria

Slurry transport properties of graded coal waste

Removal of cyanide and metals from mineral processing waste waters

Use of a sodium silicate gel grout for plugging horizontal methane-drainage holes

Increasing the leaching rate of bulk superalloy scrap by melting with aluminum

Water infusion -an effective and economical longwall dust control

Compatibility of nickel electrolyte containing sodium sulfate with a solvent extraction system

General time-dependent solutions for radon diffusion from samples containing radium

Effect of asymmetric wear of point attack bits on coal-cutting parameters and primary dust generation

Debrining of potash-clay waste slurries


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