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Foaming agent for flotation

A technology of foaming agent and function, applied in flotation, solid separation, organic chemistry, etc., can solve the problem of large amount of foaming

Inactive Publication Date: 2012-10-10
冯益生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the foaming agent has good dispersibility, large foaming volume and many microfoams, it is a water-soluble surface active substance and is insoluble in non-polar solvents such as hydrocarbons.

Method used

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  • Foaming agent for flotation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] According to the molar ratio of 1:2.0, pentanol was weighed for use. First, pentanol was put into the reaction kettle and heated, then a basic catalyst was added and heated, and then a quantitative amount of propylene oxide was added to carry out the addition reaction. ℃~130℃, the pressure is (1.0~3.0) kg / cm 2 , after the reaction is finished, the mixed solution is aged and cooled, and compound A is finally isolated.

Embodiment 2

[0026] According to the molar ratio of 1:2.0, weigh the hexanol for use, first put the hexanol into the reactor and heat it, then add the basic catalyst and heat it, and then add a certain amount of ethylene oxide to carry out the addition reaction, and control the reaction temperature 110℃~130℃, the pressure is (1.0~3.0) kg / cm 2 , after the reaction is finished, the mixed solution is aged and cooled, and compound A is finally isolated.

Embodiment 3

[0028] According to the molar ratio of 1:2.5, weigh the heptanol for use, first put the heptanol into the reaction kettle and heat it, then add the basic catalyst and heat it, and then pass a quantitative amount of ethylene oxide or propylene oxide to carry out the addition reaction , control the reaction temperature at 110°C-140°C, and the pressure at (1.0-4.0) kg / cm 2 , after the reaction is finished, the mixed solution is aged and cooled, and compound A is finally isolated.

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PUM

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Abstract

The invention discloses a foaming agent for flotation. The foaming agent comprises a compound A, and the chemical general formula of the compound A is R-O-[(CH2)n-O]m-H, wherein the R refers to alkyl of C5-C11, the n is equal to 2 or 3, and the m is equal to 1.0-3.0. The compound A belongs to oil soluble surfactants, is high in dispersity and low in consumption when in flotation and is completely biodegradable to avoid environmental pollution. The foaming agent is particularly applicable to flotation of clean coal, hydrocarbon such as kerosene or diesel is used as a collector in flotation of the clean coal, the recovery rate of the clean coal can be effectively increased, and coal ash in the clean coal is reduced.

Description

technical field [0001] The invention relates to the field of flotation selection of coal or metal ores, in particular to a foaming agent for mineral flotation. Background technique [0002] In the metal ore and coal mine industry, it is usually necessary to use the flotation method to refine it. The principle of action is to use the difference in the lipophilicity (also known as hydrophobicity) of each component in the mineral to separate the material to be selected from other materials. The substances are separated and then collected with collectors. Since most of the minerals that need to enter the flotation are in the form of tiny particles, they are mixed with water in the flotation equipment to form a slurry with a certain concentration. The mixture of collecting agent, or the emulsion of foaming agent and collector mixture), and the gas is introduced from the bottom of the flotation equipment, so that a large number of bubbles will be formed in the slurry under the ac...

Claims

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Application Information

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IPC IPC(8): B03D1/016C07C41/03C07C43/11C07C43/13B03D101/04
Inventor 冯益生
Owner 冯益生
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