Experimental Research Of Beneficiation Process On The Recovery Of Copper,Iron,Cobalt,Gold,Sliver From A Primary Ore In Hubei

In this thesis, a primary ore in Hubei was studied in detail, the major mineral composition and mineral content of the ore, the embedment characteristics and symbiotic relations between ores were identified. According to the nature of this ore, a flowsheet includes Cu-S bulk flotation, Cu-S separation is introduced. On the basis of the flowsheet designed, the roughing condition tests were carried out, which includes grinding fineness test, the variety and amount of different collectors test as well as the amount of 2#oil test, at the same time, the variety and amount of different regulators tests, mixed collectors tests, rough concentrate of Cu-S bulk flotation regrinding and twice cleaning concentrate of Cu-S bulk flotation regrinding tests were carried out too, all of those were studied in order to find out the a proper ore separation flow and appropriate pharmaceutical systems, at the same time, not only the quantity and quality of closed circuit calculations are researched in this thesis, But the analysis of final concentrate.The test results show that in the stage grinding flowsheet, the Cu recovery of Cu concentrate can't be raised significantly, at the same time, it is more complicated and have a high cost, so it is not proper to be adopted.On the conditions of the grinding fineness of -75μm is 85%, by adopting the regular grinding flowsheet of twice Cu-S mixed roughing, twice cleaning separation of roughing Cu-S concentrate, dewatering and removing reagents residue of roughing concentrate, Cu-S separation roughing, twice Cu cleaning, twice S scavenging, twice low-intensity magnetic separation of floatation tailings, a better test result is got. with the Cu concentrate with Cu grade of 16.80%, Au grade of 6.40g/t, Ag grade of 18.83 g/t, the respective recovery of Cu,Au,Ag is 91.11%,74.57%,76.58%; A cobalt sulfide concentrate with the sulfur grade of 38.69%and cobalt grade of 0.267%, the respective recovery of sulfur and cobalt is 67.48% and 52.44%; the iron concentrate with iron grade of 67.48% and sulfur grade of 0.294%, the recovery of iron is 88.84%.