A kind of flotation separation method of talc and chalcopyrite

A separation method and chalcopyrite technology, applied in flotation, solid separation and other directions, can solve the problems of talc being fragile and easy to sludge, deteriorating the flotation environment, poor selectivity, etc., to improve mineral processing index, improve grade and recovery rate , the effect of eliminating adverse effects

Active Publication Date: 2021-06-15
CENT SOUTH UNIV
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  • Abstract
  • Description
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  • Application Information

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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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  • A kind of flotation separation method of talc and chalcopyrite
  • A kind of flotation separation method of talc and chalcopyrite
  • A kind of flotation separation method of talc and chalcopyrite

Examples

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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 magnesium oxide and copper can reach more 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 method for flotation separation of talc and chalcopyrite. In the present invention, for the first time, the combination of carboxymethyl cellulose, CTP and calcium lignosulfonate is used as an inhibitor to float talc and chalcopyrite. Separation, with efficient selective inhibition of talc, at the same time can effectively disperse clay minerals and chalcopyrite particles, hinder the foam entrainment of hydrophilic gangue minerals; eliminate the adverse effects of unavoidable ions in the pulp, and further strengthen the inhibition The selective inhibitory effect of the agent can selectively inhibit the gangue minerals that are easy to float, such as talc, chlorite, etc., so as to facilitate the flotation separation of minerals, improve the grade and recovery rate of copper concentrate, and greatly improve the beneficiation index; Compared with the conventional talc inhibitor, the combined inhibitor of the present invention has synergistic effects of the three agents, has dual properties of inhibition and dispersibility, can greatly improve the beneficiation index of copper, and has market application value.

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 Patents(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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