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The purpose of the test is to make three types of ore samples for the mine: 1. Select copper tailings; 2. Large piles of sulfur concentrates; 3. Large-scale iron concentrates have been subjected to ore dressing experiments. Comprehensive recovery of valuable metals, provide the basis for equipment modification.
The multi-flotation test study of three kinds of ore samples provided by the Dongliushui Copper Mine in Hu County can draw the following conclusions:
Under strict control of slurry alkalinity (pH) and strict control of operating conditions, copper can be selected for all three types of ore samples. The closed-circuit test results for copper selection of large-scale sulfur concentrates are: copper concentrate yield 3.09%, The copper grade is 20.32% and the copper recovery is 85.47%.
The other two types of ore samples did not undergo closed-circuit tests due to the small amount of minerals and time constraints. The open circuit test results are:
1. Copper extraction from Huxian Copper Mine: The copper concentrate yield is 0.9%, the copper grade is 16.87%, the copper recovery in copper concentrate is 47.5%, and the copper recovery rate together with the middle mine is 80.74%.
2. Copper extraction from large ore deposits in Huxian County: The yield of copper concentrate is 1.3%, the copper grade is 17.32%, and the recovery rate of copper in copper concentrate is 57.11%. Together with the middle mine, the recovery rate of copper is 87.31. %.
Since the sample contains three low zinc ore grade, iron and sulfur concentrate piles zinc concentrate may be due to the long pile oxide, or iron oxide product contaminated, or cap, resulting in difficult to float a zinc mineral, during the test In the test, zinc was found to be only 9-13% in the tailings, and the zinc concentrate in the open-circuit test contained 23.24%. The zinc recovery rate was 62.00%. Since zinc in copper tailings has no problems such as oxidation and pollution, it is not impossible to strictly control the operating conditions, strictly control the amount of the drug, and select a selective collector to make the zinc grade reach 40% of the primary qualified product.