Preparation method and application of micro-fine particle coal flotation reagent

A technology for flotation reagents and fine particles, applied in flotation, solid separation, etc., can solve the problems of high cost of reagents, unsatisfactory flotation effect, large dosage, etc., and achieve improved flotation efficiency, low production cost, and high harvest The effect of performance enhancement

Pending Publication Date: 2022-03-11
SHANXI LUAN ENVIRONMENTAL ENERGY DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method and application of microfine coal flotation agent, so as to overcome the shortcomings of existing coal resource flotation agent dosage, high agent cost and unsatisfactory flotation effect

Method used

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  • Preparation method and application of micro-fine particle coal flotation reagent
  • Preparation method and application of micro-fine particle coal flotation reagent
  • Preparation method and application of micro-fine particle coal flotation reagent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0022] The preparation method of embodiment 1-5 fine coal flotation agent

[0023] A kind of preparation method of fine-grained coal flotation agent, the process parameter in the preparation method is as shown in table 1, and preparation method comprises the following steps:

[0024] S1. Take the gutter oil with a mass ratio of 1:0.5-0.7:1-1.3 to filter out impurities, industrial acid pulping waste liquid and absolute ethanol, and mix them to obtain a mixture A;

[0025] S2. Add ferric sulfate to the mixture A, the mass of the added ferric sulfate is 4%-7% of the total mass of the mixture A, heat to 70-75° C., react for 7 hours, and obtain the mixture B;

[0026] S3, adding the black paste produced in the process of producing vitamin B6 by the oxazole method to the mixture B, the quality of the black paste produced in the process of producing vitamin B6 by the added oxazole method is 20%-30% of the total mass of the mixture A %, react for 3 hours, cool, emulsify, and form a m...

Embodiment 6-8

[0030] Example 6-8 Application of Fine Coal Flotation Agents

[0031] Implement the microfine coal flotation agent that 1-5 makes is applied to the sorting of fine coal, embodiment 6-9 adopts the microfine coal flotation agent that embodiment 1 makes to carry out the separation of fine coal, coal sample The ash content of the floating coal sample was 17.2%, and the -0.045mm particle size content in the coal sample was 37.85%, which was the dominant particle size of the coal sample. The gangue minerals are mainly quartz, mica and kaolin, etc., and the mass percentages of their main chemical components are shown in Table 2.

[0032] Table 2 The main chemical components of the floating coal samples

[0033]

[0034] The fine-grained coal flotation test uses a 1.0L XFD type hanging cell flotation machine, and the spindle speed is 1800r / min. Weigh three parts of 80g coal samples and pour them into the flotation tank respectively and add tap water. The three groups of flotation...

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Abstract

The invention belongs to the technical field of coal flotation, and particularly discloses a preparation method and application of a micro-fine particle coal flotation agent.The method comprises the steps that S1, swill-cooked dirty oil with impurities filtered out, industrial acid pulping waste liquid and absolute ethyl alcohol are mixed, and a mixture A is obtained; s2, adding ferric sulfate into the mixture A, and heating for reaction to obtain a mixture B; s3, black paste generated in the process of producing the vitamin B6 through an oxazole method is added into the mixture B, reaction, cooling and emulsification are carried out, microemulsion is formed, and the micro-fine particle coal flotation reagent is obtained. The prepared micro-fine particle coal flotation reagent is applied to separation of micro-fine particle coal. The production process is simple, the production cost is low, the flotation efficiency is improved, and the recovery effect is good. The preparation method is suitable for preparing the micro-fine particle coal flotation reagent, and the prepared micro-fine particle coal flotation reagent is suitable for separation of micro-fine particle coal.

Description

technical field [0001] The invention belongs to the technical field of coal flotation, in particular to a preparation method and application of a microfine coal flotation agent. Background technique [0002] Coal is the cheapest energy with the most reserves, the widest distribution and the most applications in the world. It is widely used in industrial production such as iron and steel, electric power, and chemical industry, as well as in the living fields of residents. At present, the vast majority of power plants in the country are still dominated by thermal power, and iron and steel enterprises also use coal as the main fuel. With the continuous use and consumption of coal resources and large-scale mining in recent years, high-quality coal has become less and less, and a large amount of difficult-to-separate coal was gradually mined. At the same time, with the increase of the proportion of mechanized coal mining, the content of coal slime is getting higher and higher, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/012B03D101/02B03D101/04B03D101/06B03D103/08
CPCB03D1/012B03D2201/02B03D2201/04B03D2201/06B03D2203/08
Inventor 程志红徐龙华薛凯史新章解满锋王宁焦潞兵朱密田
Owner SHANXI LUAN ENVIRONMENTAL ENERGY DEV
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