G. E. McClelland

Production of High-purity Gold from Zinc Precipitates and Steel Wool Cathodes by Hydrometallurgical Refining

The Bureau of Mines investigated chemical methods for producing high- purity gold from precious-metal-bearing zinc precipitates and steel wool cathode...

Recovery of Gold from Arsenopyrite Concentrates by Cyanidation-carbon Adsorption

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Improvements in Heap Leaching to Recover Silver and Gold from Low-grade Resources

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Enhancing Percolation Rates in Heap Leaching of Gold-silver Ores

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Practical Ignition Problems Related to Intrinsic Safety in Mine Equipment

Four Short-term Studies

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Directional Drilling for Coalbed Degasification

Program Goals and Progress in 1978

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Electrowinning Nickel and Cobalt from Domestic Laterite Processing

Preliminary Laboratory-scale Results

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