A PbS concentrate is produced by a rougher-cleaner flotation circuit. The cleaner tailings assay 15%P are recycled to the rougher cells, and the circulating load (recycle/fresh feed) is 0.3 . The fresh feed assays 10%P and is delivered at the rate of 1000 tons ℎ.The recovery ( P in cleaner concentrate P in fresh feed) and grade in the concentrate are 95% and 85% respectively. What are the flow rates and assays of the other streams?
