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Switch type flotation reagent, preparation method and application thereof

A flotation agent and switch-type technology, which is applied in flotation, solid separation, etc., can solve the problems of low flotation recovery rate of copper oxide minerals, large consumption of flotation agents, and difficulty in flotation of fine-grained minerals. Improve the effect, increase the apparent particle size, and increase the flotation speed

Active Publication Date: 2022-07-08
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a switch-type flotation agent, a preparation method and its application, aiming at solving the difficulty in flotation of existing fine-grained minerals and the low recovery rate of flotation of copper oxide minerals And the problem of large consumption of flotation agents

Method used

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  • Switch type flotation reagent, preparation method and application thereof
  • Switch type flotation reagent, preparation method and application thereof
  • Switch type flotation reagent, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0055] Preparation of switch-type flotation reagents

[0056] 1) Dissolve 0.73115g TETA in 500mL deionized water;

[0057] 2), dissolve 2.8246g oleic acid in 1) solution;

[0058] 3), 2) the mixture was ultrasonicated for 30 minutes, and the air in the solution was removed and dispersed uniformly;

[0059] 4), seal the volumetric flask after 3) ultrasonication, put it into a constant temperature vibrator, the constant temperature is 30°C, the vibration speed is 260 per minute, and the vibration is 48h;

[0060] 5), take out the fully reacted 4), that is, obtain a 10 mM milky white solution of switch-type flotation reagent (T-O). According to different requirements of the experiment, T-O can be diluted to different concentrations for use.

Embodiment 2

[0062] The flotation experiments were carried out on the prepared new flotation reagents:

[0063] like figure 2 As shown, the switch-type flotation agent is used for the flotation separation of copper oxide minerals and silica, and the switch-type flotation agent and the foaming agent MIBC are added to the copper oxide minerals and silica particles to form Flotation system; the recovery of copper oxide minerals is realized by adjusting the pH value of the flotation system and the concentration of switch-type flotation reagents. figure 2 Medium T-O was used as a flotation collector, MIBC was used as a foaming agent, the experiment was carried out under the condition of pH=9, and the flotation scraping time was 3 minutes.

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Abstract

The invention discloses a switching type flotation reagent and a preparation method and application thereof, the chemical structural general formula of the switching type flotation reagent is shown in the specification, R is one of-(CH2) 2-,-(CH2) 2NH (CH2) 2-and-(CH2) 2NH (CH2) 2NH (CH2) 2-, X is an anion functional group, and M is an integer greater than or equal to 1 and less than or equal to 20. The novel switching type collecting agent with two long hydrophobic tail chains is formed by deprotonating an organic matter containing an anion group and performing electrostatic interaction on the deprotonated organic matter and an organic matter containing an amino group. The switch type flotation reagent is applied to flotation of micro-fine particle copper oxide ore, effective separation of copper oxide ore and silicon dioxide ore can be achieved under the condition of low dosage, and the flotation speed is high. In addition, the switch type flotation reagent can induce hydrophobic agglomeration of copper oxide particles, the apparent granularity of the particles is increased, and the micro-fine particle flotation effect is improved. Except for potential economic value, development and application of the switch type flotation reagent have inspiration and guiding significance on reagent design and research and development in the field of mineral processing.

Description

technical field [0001] The invention relates to the technical field of mineral flotation agents, in particular to a switch-type flotation agent, a preparation method and applications thereof. Background technique [0002] Flotation is an important method for the development and sorting of mineral resources, that is, by using the difference in surface hydrophilicity and hydrophobicity between the target minerals and gangue minerals, the flotation foam is selectively separated from the minerals with surface hydrophobic treatment through the hydrophobic force, and then aerated. The minerals are enriched in the upper froth of the flotation cell. The froth flotation process selects and separates solid particles based on differences in physical and surface chemistry between minerals and flotation reagents. In the froth flotation process, after the mineral surface is hydrophobized by a flotation collector, the mineral particles are collected by adhering to the flotation froth. Fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D103/04
CPCB03D1/01B03D2203/04Y02P10/20
Inventor 徐政和龙秋容王浩姜峰谭文卢周广
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA