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
Commodity pool to the Securities and Exchange Commission, regulate commodity pools. Many hedge funds are commodity pools. Funds that trade in commodities, which include many of the largest funds engaged in macro-strategies, are registered with the Commodity Futures Trading Commission as commodity pools and as commodity trading advisors (CTAs). In an address to the Securities Industry Association in 2004, Sharon Brown-Hruska, acting director of the CFTC, said that 65 of the top 100 funds in 2003 were commodity pools, and 50 out of the 100 largest hedge funds were CTAs in addition to being commodity pools. Commodity pool A commodity pool is