G. E. McClelland

• Production of high-purity gold from zinc precipitates and steel wool cathodes by hydrometallurgical refining
• Agglomeration and heap leaching of finely ground precious-metal-bearing tailings
• Agglomeration-heap leaching operations in the precious metals industry
• Improvements in heap leaching to recover silver and gold from low-grade resources
• Practical aspects of international management and processing