Foaming agent for mineral flotation and preparation method thereof

A foaming agent and mineral technology, which is applied in the field of foaming agent for mineral flotation and its preparation, can solve the problems of being unfavorable to the physical and mental health of operators, cannot be applied well, and has poor use effect, and achieves the preparation method. Simple and easy to control, low cost, easy to control effect

Inactive Publication Date: 2012-08-01
河南省核力科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When used in the field, not only the smell is strong, which is not conducive to the physical and mental health of the operators, but also it is not easy to operate, and it is easy to have sticky foam, running grooves and other phenomena that are not conducive to flotation.
Although there are related patent applications in China, such as CN1403206A "a kind of mineral foaming agent and its preparation", CN102120197A "a kind of mineral foaming agent and its preparation method", CN1242978C "a kind of preparation method of mixed fat used as foaming agent ", CN86100037A "the new collecting-foaming agent of flotation process", but the simple mixing of several kinds of raw materials that some of the above technologies have, the use effect is not good; What have is that the reaction conditions are relatively harsh, and the production cost is high, so it cannot be used in actual production get well applied

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 62g of ethylene glycol, 74g of butanol and 13.6g of 50% (mass concentration, the same below) sulfuric acid into the reaction kettle, purging with nitrogen for 10min, raising the temperature to 80°C, and reacting for 2 hours. After the temperature drops to room temperature, Use 10% (mass concentration, the same below) sodium hydroxide aqueous solution to adjust the pH value to neutral to obtain the foaming agent.

[0022] The coal from the fourth mine of Hemei Coal Group is used as raw coal, the coal type is lean coal, and the raw coal ash is 15.6%. According to the national standard GB / T 4757-2001, the small flotation test was carried out, and the foaming agent obtained by the present invention was used. At the same time, compared with X oil and No. 2 oil, the clean coal yield increased by 3.5% under the condition that the clean coal ash content was not much different. percentage points (see Table 1 below for details), and due to the good brittleness of the foam, th...

Embodiment 2

[0026] Add 92g of glycerol, 32g of methanol and 12.5g of 70% sulfuric acid into the reaction kettle, purge with nitrogen for 5min, heat up to 85°C, and react for 1 hour. After the temperature drops to room temperature, use 15% potassium hydroxide aqueous solution , adjust the pH value to neutral to obtain a foaming agent.

[0027] The coal from No. 9 Mine of Hemei Coal Group is used as the raw coal, the coal type is lean coal, and the raw coal ash is 15.37%. According to the national standard GB / T 4757-2001, the small flotation test was carried out. The foaming agent obtained in the present invention was compared with X oil and No. 2 oil. When the ash content of clean coal was not much different, the yield of clean coal increased by 2.6 percentage point (see Table 2 below for details), and due to the good brittleness of the foam, the water content of clean coal is significantly reduced after suction filtration.

[0028] Table 2

[0029] Collector A Foaming agent B...

Embodiment 3

[0031] Add 76g of propylene glycol, 46g of ethanol and 12.2g of 60% sulfuric acid into the reaction kettle, purge with nitrogen for 15min, heat up to 70°C, and react for 3 hours. After the temperature drops to room temperature, use 5% aqueous sodium hydroxide solution to The pH value is adjusted to neutral to obtain the foaming agent of the present invention.

[0032] The coal from the No. 3 Mine of Hemei Coal Group is used as the raw coal, the coal type is lean coal, and the raw coal ash is 16.07%. According to the national standard GB / T 4757-2001, the small flotation test was carried out. The foaming agent obtained in the present invention was compared with X oil and No. 2 oil. When the ash content of clean coal was not much different, the yield of clean coal was increased by 2.9 percentage point (see Table 3 below for details), and due to the good fragility of the foam, the water content of clean coal is significantly reduced after suction filtration.

[0033] table 3

[...

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PUM

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Abstract

The invention belongs to the technical field of mineral flotation preparation, in particular to a foaming agent for mineral flotation and a preparation method thereof. The preparation method comprises the following steps of: adopting monohydric alcohol and polyatomic alcohol as raw materials, reaction for 1-3 hours at the temperature of 70-90 DEG C in an insert environment under the action of a catalyst, reducing the temperature to the room temperature, and adjusting pH of a product to be neutral to obtain the foaming agent for mineral flotation. The foaming agent has good performance, and the preparation method is simple and easy to control, and is low in energy consumption and cost.

Description

technical field [0001] The invention belongs to the technical field of mineral flotation preparations, and in particular relates to a foaming agent for mineral flotation and a preparation method thereof. Background technique [0002] Frothing agent is one of the main reagents for mineral flotation, and the performance of the foaming agent has a significant impact on the flotation index. Foaming agents are generally polar surface-active substances, containing polar groups in the molecular structure, such as hydroxyl, ether, carboxyl, sulfonic acid, etc., and non-polar groups at the other end of the molecule, such as hydrocarbon groups. When the foaming agent contains hydroxyl and ether groups, it has high solubility in water, fast foaming speed, brittle foam, easy defoaming, and is not easy to entrain impurities such as gangue fine mud into the foam, which is beneficial to improve the grade of concentrate. When the foaming agent contains carboxyl group and sulfonic acid grou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/008B03D101/04
Inventor 路永广张晓丽杨胜杰王军曹佩张振张超
Owner 河南省核力科技发展有限公司
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