A kind of microemulsion type coal slime flotation collector and preparation method thereof

A coal slime flotation and collector technology, applied in flotation, solid separation, etc., can solve the problems of poor harvesting effect, high freezing point, and environmental pollution in winter, and achieve the goal of not easy to break emulsion, easy to disperse, and environment-friendly The effect of little pollution

Active Publication Date: 2021-06-11
SUZHOU FENGBEI BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] This invention not only solves the shortcomings of using petroleum collectors (light diesel oil, kerosene) which are not renewable, non-degradable, and pollutes the environment, but also solves the problems of heavy odor, air pollution, high freezing point, and winter The problem of poor harvesting effect

Method used

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  • A kind of microemulsion type coal slime flotation collector and preparation method thereof
  • A kind of microemulsion type coal slime flotation collector and preparation method thereof
  • A kind of microemulsion type coal slime flotation collector and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A preparation method of compound A, comprising the following steps:

[0045]1) Add methyl oleate and a catalytic amount of Pb powder into the reaction vessel, preheat to 150°C, and slowly add maleic anhydride at the molar ratio of maleic anhydride to methyl oleate 1:1.008 After uniform dispersion, the temperature was raised to 160°C for 3-4 hours to obtain an intermediate product;

[0046] 2) The intermediate product material in step 1) was filtered while it was hot to remove the catalyst, and 4.5 wt% of water was added to the total amount of the intermediate product, stirred, and hydrolyzed at 60° C. for 2-3 hours to obtain compound A. Compound A is a yellow oily liquid at room temperature.

Embodiment 2

[0048] A kind of microemulsion type coal slime flotation collector, is made by the weight ratio of compound A and compound emulsifier by 90:10; Wherein, compound emulsifier is made of propylene glycol fatty acid ester: sorbitan laurate : Polyoxyethylene oxypropylene oleate is composed of 1.5:1:8.5 weight ratio;

[0049] The preparation method of this microemulsion type coal slime flotation collector comprises the following steps:

[0050] 1) Take propylene glycol fatty acid ester: sorbitan laurate: polyoxyethylene oxypropylene oleate in a weight ratio of 1.5:1:8.5, and mix them evenly to obtain a compound emulsifier;

[0051] 2) Add the compound emulsifier and compound A into the container, add 4 times the volume of water, and stir at a speed of 100r / min for 3min to form a coarse emulsion;

[0052] 2) The coarse emulsion is placed in an ultrasonic cleaning tank for emulsification for 5 minutes to obtain a microemulsion type coal slime flotation collector.

Embodiment 3

[0054] A kind of microemulsion type coal slime flotation collector, is made by the weight ratio of compound A and compound emulsifier by 90:10; Wherein, compound emulsifier is made of propylene glycol fatty acid ester: sorbitan laurate : Polyoxyethylene castor oil is composed at a weight ratio of 1:1:8;

[0055] The preparation method of this microemulsion type coal slime flotation collector comprises the following steps:

[0056] 1) Take propylene glycol fatty acid ester: sorbitan laurate: polyoxyethylene castor oil in a weight ratio of 1:1:8, and mix evenly to obtain a compound emulsifier;

[0057] 2) Add the compound emulsifier and compound A into the container, add 4 times the volume of water, and stir at a speed of 150r / min for 3min to form a coarse emulsion;

[0058] 2) Place the coarse emulsion in an ultrasonic cleaning tank for emulsification for 7 minutes to obtain a microemulsion type coal slime flotation collector.

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Abstract

The invention discloses a microemulsion type coal slime flotation collector, which is characterized in that it includes a compound A shown in formula I and an emulsifier: the microemulsion type coal slime flotation collector is based on a degradable plant source Esters are used as the source, which effectively reduces the environmental pollution of petroleum-based coal slime flotation collectors, and has high capture efficiency. The invention also provides a preparation method of the microemulsion coal slime flotation collector.

Description

technical field [0001] The invention relates to the technical field of coal processing, in particular to a microemulsion coal slime flotation collector and a preparation method thereof. Background technique [0002] Coal is the main energy source in our country, and the proportion of its production and consumption has been above 60% for a long time. With the increasing degree of mechanization of coal mining, the proportion of coal slime in raw coal is getting higher and higher. Generally, the amount of pulverized coal accounts for 10% to 30% of the raw coal. Although my country has high total coal reserves, the per capita coal possession is small. Therefore, in the process of mining coal resources, the comprehensive mining and utilization efficiency of coal resources should be improved as much as possible, and each coal resource should be used rationally. Coal slime is not only an important coal resource, but also widely used. After flotation, the quality of coal slime is i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/008B03D101/02B03D103/08
CPCB03D1/008B03D2201/02B03D2203/08
Inventor 任鹏申夏夏马敏周孟龙
Owner SUZHOU FENGBEI BIOTECH CO LTD
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