impact gxf gold ore extraction equipment compound complex
Pyrites and other sulfides frequently contain an admixture ofgold, which is extracted in the processing of copperore,complex ores, and others. In the biosphere,goldmigrates in complexes with organic compounds; in river suspensions, it migrates mechanically. One liter (l) of river or sea water contains about 4 × 10 −9 g ofgold