Flotation separation method of talcum and copper pyrite

A separation method, chalcopyrite technology, applied in flotation, solid separation, etc., can solve the problems of talc fragility and mud, deterioration of flotation environment, foam stickiness, etc., to improve mineral processing index, improve grade and recovery rate, the effect of eliminating adverse effects

Active Publication Date: 2020-06-05
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the technical problems that talc in the chalcopyrite flotation separation is friable and easy to muddy in the prior art, it will be attached to the surface of the target mineral, resulting in sticky foam, poor selectivity, and worsening flotation environment. The purpose of the present invention is to Provide a kind of flotation separation method of talc and chalcopyrite

Method used

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  • Flotation separation method of talcum and copper pyrite
  • Flotation separation method of talcum and copper pyrite
  • Flotation separation method of talcum and copper pyrite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A large-scale copper-zinc-tin polymetallic paragenetic ore produced in magnesium skarn in China has a copper grade of about 0.133%. For pyrite, hornblende, pyroxene, quartz, potassium feldspar, talc, calcite, dolomite, fluorite, zoisite, epidote, garnet and titanite.

[0038] For the process mineralogy characteristics of this ore, adopt the flotation separation method of talc of the present invention and chalcopyrite, comprise the following steps:

[0039] (1) Add combined inhibitor OL-3C 80g / t to raw ore, add ammonium sulfate ester collector OL-ⅡA 40g / t, grind to -0.074mm, accounting for 70.14%;

[0040] (2) Add foaming agent MIBC 10g / t to the raw ore of predetermined fineness, and carry out roughing operation to obtain roughing concentrate and roughing tailings;

[0041] (3) Add ammonium sulfate ester collector OL-ⅡA to the roughing tailings, and obtain tailings X after secondary screening;

[0042] (4) Carry out blank concentration to the roughing concentrate to ob...

Embodiment 2

[0052] In order to verify the inhibitory effect difference between the combined inhibitor OL-3C of the present invention and the existing inhibitors, the ore feeding properties are the same as in Example 1, and the flow process adopted is: a section of grinding product undergoes a rough selection and a selection to obtain a rough Concentrate, medium ore, rough tailings, the specific process is as follows figure 2 shown;

[0053] The beneficiation index of embodiment 2 is shown in Table 2:

[0054] The beneficiation index of table 2 embodiment 2

[0055]

[0056] As can be seen from Table 2, the combined inhibitor of carboxymethyl cellulose, CTP, and calcium lignosulfonate screened by the present invention has a good inhibitory effect on gangue, and has a good flotation effect on chalcopyrite at the same time As a result, the recovery rate of magnesium oxide is the lowest, and the grade and recovery rate of copper can reach a relatively ideal state.

Embodiment 3

[0058] Combination inhibitor OL-3C of the present invention has carried out component distribution ratio optimization test, technological process is identical with embodiment 2, and the beneficiation index of embodiment 3 is shown in Table 3:

[0059] The beneficiation index of table 3 embodiment 3

[0060]

[0061] As can be seen from Table 3, use the combined inhibitor (the 3rd group) within the proportioning range of the present invention, the grade and recovery rate of magnesia and copper can reach ideal state, but not within the proportioning range of the present invention Although the recovery rate of copper is relatively high for the combined regulator (group 1 and group 2), the grade of copper is very low and does not meet the requirements of ore dressing.

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Abstract

The invention discloses a flotation separation method of talcum and copper pyrite. The method firstly adopts combination of three drugs carboxymethyl cellucose, CTP and calcium lignosulfonate as an inhibitor to carry out flotation separation on the talcum and the copper pyrite, the efficient selective inhibition effect on the talcum is possessed, meanwhile, clay mineral and copper pyrite particlescan be effectively dispersed, and the foam mixing phenomenon of hydrophilic gangue minerals is obstructed. The inevitable adverse effect of ions in ore pulp is eliminated, the selective inhibition effect of the inhibitor is further reinforced, gangue minerals such as the talcum and chlorite floating easily are selectively inhibited, thus flotation separation of the minerals is benefitted, the grade and the recycling rate of copper concentrate are improved, and the indicators in beneficiation are increased substantially. According to the method, the combined inhibitor is compared with a conventional talcum inhibitor, the three drugs collaborate, and have dual attributes of inhibitive ability and dispersity, the indicators in beneficiation of copper can be increased substantially, and the market application value is possessed.

Description

technical field [0001] The invention belongs to the technical field of mineral processing and relates to a flotation separation method for talc and chalcopyrite. Background technique [0002] Copper is one of the earliest and most widely used metals discovered by human beings. In the process from ancient times to civilization, copper mines have always been a part of development throughout. Copper metal has excellent ductility, thermal conductivity and electrical conductivity. Its electrical conductivity and thermal conductivity are second only to silver, ranking second among all metals. Copper also has strong corrosion resistance, resistance to organic acids and alkalis. , can be buried in the ground or immersed in water without corrosion. Due to its excellent properties, abundant reserves in nature, and convenient processing, copper is widely used in various downstream industries, mainly in electrical, light industry, machinery manufacturing, construction industry, nationa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00B03D1/00B03D1/016B03D101/06B03D103/04
CPCB03B9/00B03D1/00B03D1/016B03D2201/06B03D2203/04
Inventor 欧乐明王晨亮麦琼尹金赛珍
Owner CENT SOUTH UNIV
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