How to recover gold from its ores economically and sustainably in the 21st century? Gold processes that utilise activated carbon today and in the past are reviewed in this book. The focus is in the gold recovery from cyanide and chloride solutions with activated carbon and in the carbon processing related to the recycle of the carbon in the processes. This study contains also information about the gold recovery testwork related to the gold chloride processes in which activated carbon is used. As a result, this book presents specific characteristics and challenges of the gold processes utilising activated carbon in cyanide and chloride environments. Anyone interested in the gold recovery from its ores as well as a metallurgist working in this field would benefit of this book.