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Combined regulator for flotation of magnesian skarn type copper sulfide ore and application thereof

A technology for flotation of magnesium skarn and combined regulator, applied in flotation, solid separation, etc., can solve problems such as difficulties in flotation separation, scaling of pipes and cavities, dispersion of unfavorable mineral particles and flotation separation, etc., to achieve Improve the grade and recovery rate, eliminate adverse effects, and improve the effect of beneficiation indicators

Active Publication Date: 2017-06-13
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the copper sulfide ore produced in magnesia skarn often contains a large amount of clay minerals such as phlogopite, talc, chlorite, serpentine, kaolinite, etc., when lime is used in flotation to produce magnesia skarn When dealing with copper sulfide ore, there are some problems: First, lime itself is a commonly used coagulant. Adding a large amount of lime to the pulp can promote the out-of-phase coagulation of clay mineral particles and copper sulfide mineral particles in the pulp, which is not conducive to mineral Particle dispersion and flotation separation; secondly, adding lime to the pulp brings a large amount of calcium ions and calcium hydroxyl compounds, these calcium-containing components can be non-selectively adsorbed on the surface of clay minerals and sulfide minerals, making it difficult for inhibitors to selectively inhibit Clay minerals are difficult to separate by flotation; moreover, the use of lime will cause scaling in pipes and cavities, affecting the normal operation of flotation equipment (such as flotation columns) and pipelines

Method used

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  • Combined regulator for flotation of magnesian skarn type copper sulfide ore and application thereof
  • Combined regulator for flotation of magnesian skarn type copper sulfide ore and application thereof
  • Combined regulator for flotation of magnesian skarn type copper sulfide ore and application thereof

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Effect test

Embodiment 1

[0021] A large-scale copper sulfide ore produced in magnesium skarn in foreign countries, the raw ore copper grade is about 0.67%, the copper sulfide minerals in the raw ore are chalcopyrite, chalcocite and copper basket, and the gangue minerals are mainly pyrite and quartz , amphibole, mica, chlorite, talc, kaolinite and montmorillonite. Add combined regulator to the raw ore to adjust the pH value of the pulp to 10.5-11.0, the ratio of combined regulator is: 25:0.5:1, 56% is ground to -0.074mm; add combined collector 64 g / ton (OL, D Combination of ammonium black medicine and PAX, the proportion of the three is 3:3:1), adding inhibitor TCM 80 g / ton raw ore and foaming agent MIBC 24 g / ton raw ore, flotation to obtain roughing concentrate and roughing tailings mine. The tailings 1 are obtained after the roughing tailings are swept twice.

[0022] After the rough beneficiation concentrate goes through a blank beneficiation, a section of beneficiation concentrate is obtained. T...

Embodiment 2

[0030] A large-scale copper sulfide ore produced in magnesia skarn abroad has a copper grade of about 0.53%. The copper sulfide mineral in the ore is chalcopyrite, and the gangue minerals are mainly pyrite, quartz, mica, amphibole, stone, chlorite, talc. Add a combination regulator to the raw ore to adjust the pH value of the pulp to 10.5-11.0, and grind to -0.074mm to account for 55%; add a combined collector of 64 g / ton (OL, butyl ammonium black medicine, PAX combination, the proportion of the three is 3: 3:1), add inhibitor TCM 80 g / ton of raw ore and foaming agent MIBC 24 g / ton of raw ore, and obtain roughing concentrate and roughing tailings by flotation. The tailings 1 are obtained after the roughing tailings are swept twice.

[0031] After the rough beneficiation concentrate goes through a blank beneficiation, a section of beneficiation concentrate is obtained. The first-stage sorting concentrate is subjected to the second-stage grinding, and the ground product is sub...

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Abstract

The invention discloses a combined regulator for the flotation of magnesian skarn type copper sulfide ore and an application method thereof, and belongs to the technical field of mineral processing engineering. The combined regulator is combined by adopting three agents of caustic soda, sodium sulfide and sodium silicate; the mixing proportion of the three agents is that the ratio of the caustic soda to the sodium sulfide to the sodium silicate is equal to (20 to 40) to (0.5 to 2) to (1 to 5). In comparison with a conventional regulator lime for copper sulfide ore, the three agents are used for synergetic action; the exertion of the performance of an inhibitor and the performance of a collector is more facilitated; the indices of the mineral dressing of copper are greatly improved; the combined regulator has market application value.

Description

technical field [0001] The invention relates to a regulator for flotation magnesium skarn type copper sulfide ore and application thereof, belonging to the technical field of mineral processing. Background technique [0002] At present, the commonly used flotation pH regulator of copper sulfide ore is mainly lime, such as Dexing Copper Mine, Dongguashan Copper Mine, etc. Lime has the characteristics of wide sources and relatively cheap price. It can selectively suppress pyrite in the conventional flotation process of copper sulfide ore, and has been widely used in industry. [0003] Since the copper sulfide ore produced in magnesia skarn often contains a large amount of clay minerals such as phlogopite, talc, chlorite, serpentine, kaolinite, etc., when lime is used in flotation to produce magnesia skarn When dealing with copper sulfide ore, there are some problems: First, lime itself is a commonly used coagulant. Adding a large amount of lime to the pulp can promote the out...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/00B03D101/02B03D101/04B03D101/06B03D103/02
CPCB03D1/018B03D2201/007B03D2201/02B03D2201/04B03D2201/06B03D2203/02
Inventor 石晴欧乐明张国范冯其明卢毅屏
Owner CENT SOUTH UNIV
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