Iron ore; Chromite; Mineral sands; Glass sand; Gold; Coal; Mica . various points down the spiral providing more efficient washing of the concentrate, i.e., . During separation, the slurry enters the spiral through a feed box and then flows on to . If slime is in excess of 10% by weight, desliming prior to spiral concentration will.
For gold extraction, anode slime was heated with aqua regia at 90°, and the gold . method specifically for silver separating residues of the copper anode slime. . produced after washing the copper anode slime with nitric acid were leached.