Innovations in Gold and Silver Extraction and Recovery

摘要

There are few, if any, branches of extractive metallurgy that can lay claim to a greater degree of innovation than in gold and silver extraction. Since the first use of oil-treated sheep fleeces for enhanced gold recovery around 1,300 bc, innovators around the world have strived to devise more effective ways to recover precious metals. This paper reviews the major innovations that have occurred in gold and silver extraction, with a focus on developments that have occurred in the modern era (1972-2012). Key factors that led to the successful implementation and widespread commercialization are discussed. Finally, likely areas of attention for future innovations are explored.