Gold extraction the purity of gold. The parting of gold from silver has been done since ancient times starting in Lydia in the 6th century BC. Various techniques have been practised; salt cementation from ancient times, parting using distilled mineral acids from medieval times, and in modern times using chlorination using the Miller process and electrolysis using the Wohlwill process. Gold extraction Gold extraction refers to the processes required to extract gold from its ores. This may require a combination of comminution, mineral processing, hydrometallurgical, and pyrometallurgical processes to be performed on the ore. Gold mining from alluvium ores was once achieved
Social peer-to-peer processes network model allows for a more fluid organization that does not fix any group in a permanent adversarial position. Various temporary coalitions are created on an ad hoc basis depending on the issues. The following is a list of individuals who have made contributions to the peer-to-peer paradigm. MIT Press, 2004 (power as embedded in the digital protocols governing networked systems) Social peer-to-peer processes Social peer-to-peer processes are interactions with a peer-to-peer dynamic. These peers can be humans or computers. Peer-to-peer (P2P) is a term that originated from the popular concept of the P2P distributed computer application architecture which partitions