Coal slime microemulsion collecting agent and preparation method thereof

A technology of microemulsion and collector, applied in chemical instruments and methods, mixing methods, dissolution, etc., can solve problems such as poor stability, high collector consumption, poor flotation effect of hydrocarbon oil collectors, etc. Achieve the effects of strong stability, saving the amount of hydrocarbon oil, and transparent and clear appearance

Active Publication Date: 2013-04-24
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the technical defects of poor stability of milky collectors, large collector consumption and poor flotation effect of hydrocarbon oil colle

Method used

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  • Coal slime microemulsion collecting agent and preparation method thereof
  • Coal slime microemulsion collecting agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Raw materials: 1g of No.-10 light diesel oil, 0.82g of OP-4, 0.48g of n-amyl alcohol, and 12.95g of water.

[0024] Preparation method: Mix No. 0 light diesel oil, OP-7 and n-pentanol, pre-stir on a magnetic stirrer, stir while adding water, stir until transparent and clear, then continue to disperse for 5-10 minutes with an ultrasonic generator, and ultrasonically generate The ultrasonic frequency of the device is 20KHz, and the temperature of the preparation process is controlled at 20°C. The prepared collector oil droplet size is 85nm

Embodiment 2

[0026] Raw materials: 1 g of No. 0 light diesel oil, 0.39 g of OP-7, 0.25 g of n-amyl alcohol, and 8.63 g of water.

[0027] The preparation method is the same as that of Example 1, except that the temperature of the preparation process is controlled at 30°C, and the ultrasonic frequency of the ultrasonic generator is 28KHz. The particle size of the prepared collector oil droplet is 53nm.

Embodiment 3

[0029] Raw materials: 1 g of No. 0 light diesel oil, 0.29 g of OP-10, 0.18 g of n-amyl alcohol, and 5.2 g of water.

[0030] The preparation method is the same as that of Example 1, except that the temperature of the preparation process is controlled at 40°C, and the ultrasonic frequency of the ultrasonic generator is 40KHz. The particle size of the prepared collector oil droplet is 38nm.

[0031] figure 1 It is the particle size distribution of oil droplets in the coal slime collector of the present invention measured by a dynamic light scattering instrument. As can be seen from the figure, the particle size of the collector of the present invention is less than 100nm.

[0032] In order to verify the advantages of the present invention, choose No. 0 diesel oil and the microemulsion collectors of the three embodiments of the present invention to carry out flotation to the same batch of coal slime, and the flotation results are as follows.

[0033]

[0034] As can be seen ...

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Abstract

The invention discloses a coal slime microemulsion collecting agent. The coal slime microemulsion collecting agent is composed, by mass percent: 6%-15% of hydrocarbon oil, 2%-6% of main emulsifying agent, 2-4% of cosurfactant, and the balance being water. The hydrocarbon oil is light diesel oil selected from number 10 light diesel oil, number 0 light diesel oil, number -10 light diesel oil, number -20 light diesel oil or number -35 light diesel oil. The main emulsifying agent is alkylphenol polyethenoxy ether surfactant. Cosurfactant is at least selected from one of C4-C8 alcohol. Since collecting agent is applied in coal slime flotation, hydrocarbon oil dosage is saved beneficially, and oil saving ratio can reach more than 30% on the premise that clean coal yield and ash content are almost the same.

Description

technical field [0001] The patent of the invention relates to the technical field of coal slime flotation, in particular to a coal slime microemulsion collector. Background technique [0002] Coal is the most important energy source in my country. In terms of categories, although my country has a complete range of coal resources and coal types, the occurrence status of each type of coal is different. Scarce varieties of coal resources refer to the coal varieties that are rare in the actual reserves of coal resources in my country and at the same time play an important role in the operation and development of my country's national economy. Referring to my country's coal resource classification standard (GB5751-86) and the actual occurrence and utilization of various coal types in coal resources, coking coal, high-quality anthracite and other special coal types in coal resources are undoubtedly scarce varieties in coal resources. For a long time, due to the influence of the t...

Claims

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Application Information

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IPC IPC(8): B03D1/008B01F3/08B03D101/02
Inventor 李琳吕宪俊邱俊胡术刚陈平
Owner SHANDONG UNIV OF SCI & TECH
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