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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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flotation times of scheelite flotation are many, resulting in a large

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
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Example Embodiment

[0017] Example 1

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

[0019] 1) Magnetic separation: the magnetic field strength of the first coarse separation is 0.3T; the magnetic field strength of the first selection is 0.08T; the magnetic sulfide concentrate and the magnetic tailings are obtained;

[0020] 2) Copper flotation: Concentrate the magnetic tailings to a concentration of 35%. Based on the original ore, one rough separation: 500 g / ton of quicklime, 5 g / ton of butyl xanthate, 10.0 g / ton of ethyl thiourethane , Stirring for 3 minutes; 4 selections: selection 1 and selection 4 without quicklime, selection 2 and selection 3 with 200 and 100 g / ton quicklime respectively, stirring for 2 minutes; 1 sweep selection without adding agent, Stir for 2 minutes; obtain copper concentrate and copper flotation tailings;

[0021] 3) Sulfu...

Example Embodiment

[0026] Example 2

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

[0028] 1) Magnetic separation: 1 time roughing magnetic field strength 0.4T; 1 time beneficiation magnetic field strength 0.15T; obtaining magnetic sulfide concentrate and magnetic tailings;

[0029] 2) Copper flotation: concentrate the magnetic separation tailings to a concentration of 30%, based on the original ore, 1 rough separation: add 1000 g / ton quicklime, 50 g / ton butyl xanthate, 2 # Oil 3.0g / ton, stirring for 5 minutes; 3 times of selection: no quicklime for selection 1, 300 and 200g / ton of quicklime for selection 2 and 3, stirring for 3 minutes; 2 times of sweeping without adding agent , Stirring for 4 minutes; obtain copper concentrate and copper flotation tailings;

[0030] 3) Sulfur flotation: based on the original ore, the above-mentioned copper flota...

Example Embodiment

[0035] Example 3

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

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

[0038] 2) Copper flotation: Concentrate the magnetic tailings to a concentration of 30%. Based on the original ore, one rough separation: add quicklime 1500 g / ton, butyl xanthate 100 g / ton, and thiourethane 3.0 g / ton , Stirring for 5 minutes; 3 times of selection: 200, 200, and 100 g / ton of quicklime for selection 1, selection 2 and selection 3 respectively, stirring for 4 minutes; 1 sweeping selection without adding agent, stirring for 2 minutes; Copper concentrate and copper flotation tailings;

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

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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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