TRAIL - Technical Report Archive and Image Library

Quarrying near urban areas :an aid to premine planning

Mine power systems research(in four parts) :

Mine health and safety in-house research, development, and demonstration in fiscal year 1979

Development of specialized sulfur concretes

Gas analysis procedures applicable to flue gas desulfurization by the citrate process

Citrate process demonstration plant design

Citrate-process pilot-plant operation at the Bunker Hill Company

Effect of symmetric bit wear and attack angle on airborne respirable dust and energy consumption

Thermodynamic properties of potassium metasilicate and disilicate

Directional drilling for coalbed degasification :program goals and progress in 1978

Grouting horizontal drainage holes in coalbeds

Determination and estimation of ionic activities of metal salts in water

Superplasticity in selected magnesium-base alloys

Elution of uranyl carbonate from a strong base resin with a mixed carbonate eluant in a fluidized system

Solubility and activity of aluminum chloride in aqueous hydrochloric acid solutions

Effects of heating on radon-222 emanation from domestic uranium ores

Carbon-in-pulp gold adsorption from cyanide leach slurries

Composition depth profiles and the effects of annealing for ion-implated alloys

Flue gas desulfurization by the modified citrate process

Geology of the single-entry project at Sunnyside Coal Mines 1 and 2, Sunnyside, Utah

Correction factors for low-velocity airflow measurements in mines

Effects of electrolytes on the electrophoretic mobilities of Florida phosphatic clay wastes

Determination of hydrogen sulfide content in natural gas, evaluation of containers for preparation of calibration standards, and sample collection procedure

Dust control for a borer-type continuous miner using a venturi scrubber on a transfer car

Detinning ferrous products from urban waste for use in steelmaking

Flexible, fiberoptic stratascope for mining applications

Electrowinning zinc from zinc chloride-alkali metal chloride electrolytes

Acidulation of Florida phosphate matrix in a single-tank reactor

Stress-induced failures in mine roof

Design of a compact muffler for a jumbo drill

Analysis of steelmaking slags by atomic absorption spectrophotometry using pressure dissolution

Stability of alumina-base refractories in western lignite-ash slag environments

The flammability of coal dust-air mixtures :lean limits, flame temperatures, ignition energies, and particle size effects

Electrochemical corrosion and film analysis studies of Fe and Fe-18Cr in IN H₂SO₄

Electrorefining copper at high current densities

Methane content and geology of the Hartshorne coalbed in Haskell and Le Flore Counties, Okla

Autoclave leaching of copper-nickel matte produced from Duluth gabbro

Erosion testing of potential valve materials for coal gasification systems

Laboratory evaluation of the MRDE scrubber

Relationship of mineral habit to size characteristics for tremolite cleavage fragments and fibers

Slickenside occurrence in coal mine roof of the Valley Camp no. 3 mine near Wheeling, W. Va.

Wet high-intensity magnetic beneficiation of oxidized taconites

Radiant heating of mine bulkheads

Application of a diffusion model to oxide sintering

Reactivity of AN-FO with pyrite containing weathering products

Triggered barriers for the suppression of coal dust explosions

Relationship of mineralogical and chemical composition of refractory periclases to modulus of rupture at 1,500©® to 1,600©® C

Bench-scale flotation of insoluble slimes from potash ore

Properties of manganese-copper alloys prepared from metal powders

Incinerated municipal sewage sludge as a potential secondary resource for metals and phosphorus

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