TRAIL - Technical Report Archive and Image Library

Noise reduction of a pneumatic rock drill

Lead-zinc extraction from concentrates by electrolytic oxidation

Improved properties of lead-antimony alloys by thermomechanical treatments

Updated cost evaluation of a metal and mineral recovery process for treating municipal incinerator residues

Recovery and separation of molybdenum and rhenium from a process solution

Building stoppings in mines with large openings

Processing chalcopyrite concentrates by a nitrogen roast-hydrometallurgical technique

Effect of rock dust on explosibility of coal dust

Impact and thermal sensitivity of commercial detonators

Studies of sand-sulfur-asphalt paving materials

Cutting experiments using a rotating water jet in a borehole

Free energies of formation of ferrous and ferric fluoride by electromotive force measurements

Radium removal from uranium ores and mill tailings

Drillability determination :a drillability index for percussion drills

Evaluation of refractories for mineral wool furnaces

Continuous flotation of high-clay potash ores

Enthalpies of formation of cupric and cuprous bromides

Two-phase flow in coalbeds

Dust generation and comminution of coal

Recovery of silicon carbide from granite sludge

Nitride intermediates in the preparation of columbium, vanadium, and tantalum metals(in two parts) :

Phosphoric acid by direct sulfuric acid digestion of Florida land-pebble matrix

Recovering polyurethane foam and other plastics from auto-shredder reject

Rotary drilling holes in coalbeds for degasification

Tilt precursors in rock before failure :a laboratory investigation

Electrowinning of copper from chloride solutions

Preventing formation of copper alloys of tin, antimony, and arsenic on steel surfaces during reheating to reduce hot shortness

Characterization studies of Florida phosphate slimes

Selected geologic factors affecting mining of the Pittsburgh coalbed

Copper-nickel mineralization in a drill core from the Duluth Complex of northern Minnesota

Dewatering electrochemical machining sludge

Recovery of mercury from cinnabar ores by electrooxidation :extraction plant amenability tests

Beneficiation of Alabama clays

Depth and producing rate classification of petroleum reservoirs in the United States, 1971

Characterizing combustible portions of urban refuse for potential use as fuel

A Fortran routine reorganizer

The reserve base of coal for underground mining in the Western United States

Analyses of natural gases, 1974

Detection and delineation of faults by surface resistivity measurements:Canada mine, Caribou County, Idaho

Blasting tests in a porphyry copper deposit in preparartion for in situ extraction

The reserve base of U.S. coals by sulfur content :(in two parts)

Sulfur content of crude oils

Geothermal energy: economic potential of three sites in Alaska

Implications of the water pollution control act of 1972 for the mineral resource industry, a survey

Ground support systems in block-cave mining :a survey

Automatic fire protection systems for large haulage vehicles :prototype development and in-mine testing

Noise control :proceedings : Bureau of Mines Technology Transfer Seminar, Pittsburgh, Pa., January 22, 1975

Main line natural gas sales to industrial users

Mine power distribution :proceedings, Bureau of Mines Technology Transfer Seminar, Pittsburgh, Pa., March 19, 1975

Basic estimated capital investment and operating costs for underground bituminous coal mines :mines with annual production of 1.03 to 3.09 million tons from a 48-inch coalbed : revision of Information circular 8641

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