Separation method for cupric oxide and copper sulfide mixed ore
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A technology of copper oxide ore and copper sulfide, applied in the direction of solid separation, etc., can solve the problems of difficult operation, unstable leaching recovery rate, low recovery rate of copper sulfide, etc.
Inactive Publication Date: 2020-10-20
CHINA ENFI ENGINEERING CORPORATION
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[0004] In addition, for the mixed ore of copper sulfide ore and copper oxide ore, the hydrometallurgy process of stirring and leaching, extraction, and electrowinning of the extract is used to recover, and the recovery rate of copper sulfide is low; bacterial heap leaching is used for extraction, and then electrowinning smelting process, the production cycle is as long as 6 months or eve
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Embodiment 1
[0058] S1 Grinding
[0059] A mixed ore of copper sulfide ore and copper oxide ore, the raw ore Cu grade is 2.0%, of which copper sulfide ore accounts for 60%, and copper oxide ore accounts for 40%. Among them, copper sulfide exists in the form of fine particles, and the copper oxide ore is embedded in the particle size >0.074mm accounted for 70%, and embedded particle size <0.020mm in copper sulfide ore accounted for 60%. Coarsely grind the mixed ore of copper sulfide ore and copper oxide ore, and grind the ore to a fineness of less than 0.074mm, accounting for 70%.
[0060] S2 copper sulfide ore roughing
[0061] In ore pulp, add collector, regulator and foaming agent to carry out copper sulfide ore flotation, use butyl xanthate as copper sulfide collector, the consumption of rough selection section is 100g / t (medicine consumption is all in the embodiment of the present invention Calculated per ton of ore, the same below), lime is used as a regulator, and the amount used i...
Embodiment 2
[0070] S1 Grinding
[0071] A mixed ore of copper sulfide ore and copper oxide ore, the raw ore Cu grade is 1.5%, of which copper sulfide ore accounts for 70%, and copper oxide ore accounts for 30%. Among them, copper sulfide exists in the form of fine particles, and the copper oxide ore is embedded in the particle size >0.074mm accounted for 70%, and embedded particle size <0.020mm in copper sulfide ore accounted for 60%. Coarsely grind the mixed ore of copper sulfide ore and copper oxide ore to a fineness of 65% ore below 0.074mm.
[0072] S2 copper sulfide ore roughing
[0073] Add collectors, adjusters and foaming agents to the pulp for flotation of copper sulfide ore, use the combination of butyl xanthate and Z-200 as copper sulfide collector, the rough selection amount is 60g butyl xanthate+ 40g Z-200 / t, lime is used as a regulator, the amount used in the roughing stage is 500g / t, methyl isobutyl carbinol is used as a foaming agent, the amount used in the roughing stag...
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Abstract
The invention discloses a separation method for cupric oxide and copper sulfide mixed ore. The separation method comprises the following steps: S1, grinding the cupric oxide and copper sulfide mixed ore to below the grade of 0.074mm accounting for 60 to 70 percent of fineness; S2, adding a regulator, a collector and a foaming agent for floating copper sulfide ore into ore pulp obtained from S1; S3, grinding copper sulfide rough concentrate obtained from S2, and carrying out aeration floatation to obtain copper sulfide concentrate; S4, adding a vulcanizing agent, the regulator, the collector and the foaming agent into copper sulfide rougher tailings obtain from S2 and carrying out floatation to obtain cupric oxide rough concentrate; and S5, adding the vulcanizing agent, the regulator, the collector and the foaming agent into the cupric oxide rough concentrate obtained from S4, carrying out floatation to obtain cupric oxide concentrate and cleaner tailings, scavenging the cleaner tailings and outputting the cleaner tailings. By use of the separation method disclosed by the invention, the copper sulfide concentrate and the cupric oxide concentrate with higher grade and higher recoveryrate can be obtained, so that the investment is saved; and the separation method can be applied to industrial production.
Description
technical field [0001] The invention belongs to the technical field of copper ore treatment, and in particular relates to a method for sorting copper oxide and copper sulfide mixed ore. Background technique [0002] Among the copper ore resources, a certain amount of oxygen-sulfur mixed copper ore resources have been formed after the copper sulfide deposits have been wind-eroded and oxidized. Due to the large surface tension of the copper oxide ore, it will have a strong effect when it meets water, and its minerals The structural structure of the composition is also relatively complex, which makes the separation of copper oxide minerals more difficult. The general mixed copper ore flotation technology has a good recovery effect for copper sulfide ore (primary chalcopyrite, secondary copper and copper blue), but the separation recovery rate for copper oxide ore is low. [0003] At present, the mixed flotation process is adopted for the mixed ore of copper sulfide ore and cop...
Claims
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