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Ore dressing method for copper-sulfur-white tungsten minerals

A beneficiation method and scheelite technology, applied in flotation, solid separation, etc., can solve the problems of large amount of foam flushing water, many times of scheelite flotation flotation, and large medium ore circulation, so as to reduce foam flushing water, The effect of reducing the consumption of harmful ions on the chemical and improving the recovery rate

Active Publication Date: 2017-01-04
广东省资源综合利用研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flotation times of scheelite flotation are many, resulting in a large amount of middle ore circulation and a large amount of foam washing water

Method used

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  • Ore dressing method for copper-sulfur-white tungsten minerals
  • Ore dressing method for copper-sulfur-white tungsten minerals
  • Ore dressing method for copper-sulfur-white tungsten minerals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] pair containing WO 3 0.08%, Cu 0.16%, S 9.53%, Fe15.76% copper-sulfur scheelite ore. After the raw ore is ground to a grinding fineness of 65%-0.074mm, the following steps are carried out in sequence:

[0019] 1) Magnetic separation: 1 roughing magnetic field strength 0.3T; 1 fine magnetic field strength 0.08T; obtain magnetic sulfur concentrate and magnetic separation tailings;

[0020] 2) Copper flotation: Concentrate the magnetic separation tailings to a concentration of 35%, based on the raw ore, 1 roughing: add 500 grams / ton of quicklime, 5 grams / ton of butyl xanthate, and 10.0 grams / ton of thiocarbamate , stirring for 3 minutes; 4 selections: selection 1 and selection 4 do not add quicklime, selection 2 and selection 3 add quicklime 200 and 100 g / ton respectively, and stir for 2 minutes; 1 selection does not add chemicals, Stir for 2 minutes; obtain copper concentrate and copper flotation tailings;

[0021] 3) Sulfur flotation: based on the raw ore, the above-m...

Embodiment 2

[0027] pair containing WO 3 0.21%, Cu 0.67%, S 26.27%, Fe 38.31% copper-sulfur scheelite ore. After the raw ore is ground to a grinding fineness of 74%-0.074mm, the following steps are carried out in sequence:

[0028] 1) Magnetic separation: 1 roughing magnetic field strength 0.4T; 1 fine magnetic field strength 0.15T; obtain magnetic sulfur concentrate and magnetic separation tailings;

[0029] 2) Copper flotation: Concentrate the magnetic separation tailings to a concentration of 30%, based on the original ore, 1 roughing: add quicklime 1000 grams / ton, butyl xanthate 50 grams / ton, 2 # Oil 3.0 g / ton, stirring for 5 minutes; 3 times of selection: selection 1 without quicklime, selection 2 and selection 3 respectively add quicklime 300 and 200 g / ton, stirring for 3 minutes; 2 times of sweeping without adding chemicals , stirring for 4 minutes; obtain copper concentrate and copper flotation tailings;

[0030]3) Sulfur flotation: based on the raw ore, the above-mentioned cop...

Embodiment 3

[0036] pair containing WO 3 1.76%, Cu 0.20%, S 18.94%, Fe27.21% copper-sulfur scheelite ore. After the raw ore is ground to a grinding fineness of 87%-0.074mm, the following steps are carried out in sequence:

[0037] 1) Magnetic separation: 1 roughing magnetic field strength 0.5T; 1 fine magnetic field strength 0.15T; obtain magnetic sulfur concentrate and magnetic separation tailings;

[0038] 2) Copper flotation: Concentrate the magnetic separation tailings to a concentration of 30%, based on the raw ore, 1 roughing: add quicklime 1500 g / ton, butyl xanthate 100 g / ton, thiocarbamate 3.0 g / ton , stirred for 5 minutes; 3 times of selection: 200, 200 and 100 g / t of quicklime were added respectively for selection 1, selection 2 and selection 3, and stirred for 4 minutes; 1 sweep without adding chemicals, stirred for 2 minutes; obtained Copper concentrates and copper flotation tailings;

[0039] 3) Sulfur flotation: based on the raw ore, the above-mentioned copper flotation ta...

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Abstract

The invention relates to an ore dressing method for copper-sulfur-white tungsten minerals. The ore dressing method is characterized by sequentially comprising the following steps: after a raw ore is ground, performing magnetic separation to obtain magnetic sulfur concentrates and magnetic separation tailings and performing copper flotation after the magnetic separation tailings are concentrated to obtain copper concentrates and copper flotation tailings; performing sulfur flotation on the copper flotation tailings to obtain sulfur concentrates and sulfur flotation tailings; processing the sulfur flotation tailings by using a centrifugal machine to obtain centrifugal machine concentrates and centrifugal machine tailings; after the centrifugal machine concentrates are concentrated, performing desulfurization flotation to obtain desulphurization concentrates and desulphurization tailings; performing white tungsten flotation on the desulphurization tailings to obtain white tungsten concentrates and white tungsten tailings; after the natural precipitation of the white tungsten tailings, obtaining tailing water and tailings and returning the tailing water for raw ore grinding and all the steps. The ore dressing method for the copper-sulfur-white tungsten minerals, provided by the invention, is simple to operate and lower in cost, can improve the copper-sulfide-white tungsten ore dressing indexes, more facilitates the environmental protection of a mine and is suitable for the ore dressing of the copper-sulfur-white tungsten minerals containing 0.03-2.0 percent of WO3, more than or equal to 0.05 percent of Cu, more than or equal to 5.0 percent of S and more than or equal to 5.0 percent of Fe.

Description

technical field [0001] The invention relates to a beneficiation method, in particular to a WO-containing 3 0.03~2.0%, Cu≥0.05%, S≥5.0%, Fe≥5.0% copper-sulfur scheelite mineral processing. Background technique [0002] Scheelite is often associated with chalcopyrite, pyrite, pyrrhotite and other sulfide minerals, as well as calcium gangue minerals such as calcite and fluorite. At present, copper-sulfur scheelite with finer ore embedded particle size is mostly recovered by flotation. Copper-sulfur ore is a sulfide ore mineral, which is relatively easy to float; tungsten mineral is an oxide ore, and flotation is difficult. Therefore, copper-sulfur scheelite generally adopts the beneficiation process of floating copper-sulfur first and then floating scheelite. Copper-sulfur scheelite is easily oxidized due to sulfur-containing minerals, and the natural pH of the pulp is mostly acidic, and there is a large amount of Fe in the pulp 3+ , Fe 2+ , Cu 2+ Plasma, these ions and ...

Claims

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Application Information

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IPC IPC(8): B03B9/00B03D1/018B03D101/02B03D103/02
CPCB03B9/00B03D1/018B03D2201/02B03D2203/02
Inventor 周晓彤邓丽红关通付广钦陈远林
Owner 广东省资源综合利用研究所
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