Composite flotation reagent for flotation separation of molybdenite and talc and flotation separation method

A technology of flotation reagents and separation methods, applied in flotation, solid separation, etc., can solve the problems of poor selectivity of organic inhibitors, limited effect of sulfonate, unsatisfactory effect, etc., to increase flotation rate and reduce flotation Recovery rate, the effect of achieving selective capture

Active Publication Date: 2020-06-12
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the selectivity of these organic inhibitors is poor and the effect is not ideal
For example, li

Method used

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  • Composite flotation reagent for flotation separation of molybdenite and talc and flotation separation method
  • Composite flotation reagent for flotation separation of molybdenite and talc and flotation separation method
  • Composite flotation reagent for flotation separation of molybdenite and talc and flotation separation method

Examples

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Example Embodiment

[0054] Preparation steps of flotation reagent:

[0055] 1. Add the flotation agent of the present invention to the reaction kettle in the order of deionized water-inhibiting component A-active component B-foaming agent, and heat to 50℃ and react under pressure for 1 hour to form a mixture. ;

[0056] 2. Place it in a mechanical stirrer at room temperature (25°C) and at room pressure for 2 hours to obtain a homogeneously mixed yellow viscous composite flotation reagent;

[0057] 3. Flotation is to mix the prepared composite flotation reagent with water at a ratio of 1:1000 and put it into an ultrasonic device for ultrasonic dispersion for 8 minutes and then add as needed to obtain a composite flotation reagent solution.

[0058] In the flotation process, the molybdenite mineral doped with talc is first pulped, aerated and stirred for 3 minutes, and then the required amount of the composite flotation reagent solution of the present invention is added.

[0059] As a preferred example, in ...

Example Embodiment

[0062] Example 1: (Case of the effect of inhibiting component A of the present invention)

[0063] Flotation reagent components used in Example 1:

[0064] Inhibition component A—divide into five groups, add 20; 40; 60; 80; 100mg / L,

[0065] No active ingredient B added,

[0066] Foaming agent—MIBC 5mg / L.

[0067] Flotation process:

[0068] Put 2g molybdenite or talc concentrate into a 40mL flotation tank, add appropriate amount of water, stir and aerate for 3 minutes to make the mineral slurry, add the flotation reagent solution described in Example 1, stir and aerate for 3 minutes, then scrape and The concentrate that the foam floats up together is scraped 20 times per minute for 3 minutes. The concentrate and tailings are dried and weighed separately. The recovery rate is calculated as shown in Table 1. figure 2 Shown ( figure 2 The average value of group 1, 2, 3 is used, and the upper difference is added as the error bar to draw), the flotation process is as follows figure 1 Show...

Example Embodiment

[0072] Example 2: (case of effect of active ingredient B of the present invention)

[0073] Flotation reagent components used in Example 1:

[0074] Inhibition component A—40mg / L,

[0075] Active ingredient B, sodium butyl xanthate (analytical pure, from Macleans Chemical Reagent Co., Ltd.), divided into five groups, added 40; 80; 120; 160; 200mg / L

[0076] Foaming agent—MIBC 5mg / L.

[0077] Flotation process:

[0078] Put 2g molybdenite or talc concentrate into a 40mL flotation tank, add appropriate amount of water, stir and aerate for 3 minutes to make the mineral slurry, add the flotation reagent solution described in Example 1, stir and aerate for 3 minutes, then scrape and The concentrate that the foam floats up together is scraped 20 times per minute for 3 minutes. The concentrate and tailings are dried and weighed separately, and the recovery rate is calculated as shown in Table 2. image 3 Shown ( image 3 The average value of group 1, 2, 3 is used, and the upper difference is a...

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Abstract

The invention discloses a novel efficient and high-separation composite flotation reagent for molybdenite and talc and a preparation method of the novel efficient and high-separation composite flotation reagent. The composite flotation reagent comprises a flotation reagent inhibiting component A and an active component B, selectively further comprising a foaming agent. The material shown in the formula 1 and the reagent shown in the formula 2 are combined, an excellent synergistic effect is achieved, the problem that the selectivity of a single component to molybdenite and talc is not ideal can be remarkably solved, so that the selectivity is remarkably improved, and the effect of effectively inhibiting talc without influencing or even promoting molybdenite collection is achieved.

Description

technical field [0001] The invention relates to a molybdenite flotation agent doped with talc gangue, in particular to a novel composite flotation agent of molybdenite and talc with high efficiency and high separation performance. Background technique [0002] Improving flotation recovery and reducing tailings discharge are our common goals. Molybdenite (MoS 2 ) is an important strategic material. Its metal element (Mo) is widely used in high temperature and corrosion resistant metal alloys for missiles and aircraft. Both molybdenite and talc have a sheet-like hydrophobic structure, so molybdenite and talc have excellent natural hydrophobicity. Talc is a silicate mineral. In sulfide ores, the separation of talc as a strongly hydrophobic gangue mineral from molybdenite is particularly important. [0003] Most separations of molybdenite and talc have inhibitors added to achieve the effect of separating the two minerals in modern plants. Inhibitors are divided into inorga...

Claims

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Application Information

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IPC IPC(8): B03D1/008B03D1/012B03D1/00B03D101/06B03D103/04
CPCB03D1/00B03D1/008B03D1/012B03D2201/06B03D2203/04
Inventor 高志勇张晚佳荀骆冰陶黎明曹建孙伟胡岳华
Owner CENT SOUTH UNIV
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