Comprehensive recovery method for copper and iron in copper tailings
A recovery method and mine copper technology, applied in the field of comprehensive iron recovery and copper tailings and copper, can solve problems such as harming the environment, idle waste of copper tailings, etc., and achieve the effects of reducing environmental pollution, avoiding idle waste, and improving resource utilization.
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Embodiment 1
[0030] like figure 1 Shown, the copper tailings copper in the present embodiment, iron comprehensive recovery method may further comprise the steps:
[0031] (1) The original tailings are mined by water to make tailings slurry with a concentration of 25% to 30%, and then transport the tailings slurry to the spiral chute 1;
[0032] (2) Gravity separation and separation of the tailings slurry transported in step (1) through the spiral chute 1, and recovery of the gravity concentration slurry; concentration of the gravity tailings slurry through the first paste thickener 2 for use in tailings filling;
[0033] (3) Carry out water and ore separation by thickener 3 with the reclaimed concentrated ore pulp reclaimed in step (2), and recycle the separated water;
[0034] (4) Grinding the ore sand obtained through the separation of step (3) through the mill 4, the grinding particle size is -0.074 μm, 75% to 80%;
[0035] (5) Introduce the regrinded ore pulp in step (4) in the roug...
Embodiment 2
[0043] This embodiment is basically the same as Embodiment 1, the difference is:
[0044] The first medicament in the step (5) includes 75g / t of butyl xanthate, 900g / t of lime and No. 2 oil of 27g / t.
[0045] The second agent in step (5) includes 450g / t of lime.
[0046] The third agent in step (5) includes 450g / t of lime.
Embodiment 3
[0048] This embodiment is basically the same as Embodiment 1, the difference is:
[0049] The first medicament in the step (5) includes 85g / t of butyl xanthate, 1100g / t of lime and No. 2 oil of 33g / t.
[0050] The second agent in step (5) includes 550g / t of lime.
[0051] The third agent in step (5) includes 550g / t of lime.
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