Apparatus and methods for recovering valuable metals

摘要

Apparatus and method for continuously separating a dense valuable material such as gold from a feed including a grinding mill (2) which directs a crushed feed through hydrocyclones (9) for separation into a light and dense fraction. The dense fraction is concentrated further by in line pressure jigs (16, 17) and the concentrate (23) is leached in a rotating leaching reactor (45). The resulting pregnant liquor is subjected to electrowinning (83) to recover gold and the spent liquor is recycled.