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Preparation method of comb type high-molecular flotation agent

A comb-shaped polymer and flotation agent technology, applied in flotation, solid separation, etc., can solve the problems that one component is difficult to play multiple functions, cannot produce superimposed effects, and compatibility differences, etc., to achieve good emulsification effect, Simplify the pretreatment process and improve the effect of the interface state

Inactive Publication Date: 2014-05-07
焦作超达环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used flotation agents are mostly monofunctional substances with single performance, and it is difficult for one component to exert multiple functions, so multiple agents are often used in combination
However, due to the difference in compatibility of various components, they often cannot produce obvious superimposed effects, or even have the opposite effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 360g of allyl polyoxyethylene ether (m=12) into the glass kettle, and pass in nitrogen to replace the air in the kettle to maintain the nitrogen environment in the kettle. The temperature of the water bath was raised to 40°C to melt the material. Start stirring, and continuously add 45 g of phosphorus pentoxide along with nitrogen. Raise the temperature to 80°C and react for 4 hours to obtain allyl polyoxyethylene ether phosphate.

[0024] Add 200 g of the above-mentioned allyl polyoxyethylene ether phosphate, 22 g of octafluoropentyl alcohol polyoxyethylene ether acrylate (p=10), and 56 g of water into a glass kettle, fully dissolve and mix well. Mix 64g of acrylamide with 16g of water to make an 80% solution. Mix 1.75g ​​of ammonium persulfate and 1.21g of thioglycolic acid to make an aqueous solution with a mass concentration of 10%. The water bath was warmed to 80°C. The acrylamide solution and the initiator solution were added dropwise, the acrylamide was a...

Embodiment 2

[0026] Add 300g of allyl polyoxyethylene ether (m=20) into the glass kettle, pass in nitrogen to replace the air in the kettle, and maintain the nitrogen environment in the kettle. The temperature of the water bath was raised to 40°C to melt the material. Start stirring, and continuously add 22 g of phosphorus pentoxide along with nitrogen. Raise the temperature to 80°C and react for 4 hours to obtain allyl polyoxyethylene ether phosphate.

[0027] Add 260g of the above-mentioned allyl polyoxyethylene ether phosphate, 37g of dodecafluoroheptyl alcohol polyoxyethylene ether methacrylate (p=12), and 95g of water into a glass kettle, fully dissolve and mix well. Mix 76g of acrylamide with 25g of water to make a 75% solution. Mix 2.22g of ammonium persulfate and 1.89g of thioglycolic acid to prepare an aqueous solution with a mass concentration of 20%. The temperature of the water bath was raised to 90°C. The acrylamide solution and the initiator solution were added dropwise, ...

Embodiment 3

[0029] Add 380g of allyl polyoxyethylene ether (m=18) into the glass kettle, and pass in nitrogen to replace the air in the kettle to maintain the nitrogen environment in the kettle. The temperature of the water bath was raised to 40°C to melt the material. Start stirring, and continuously add 32 g of phosphorus pentoxide along with nitrogen. Raise the temperature to 80°C and react for 4 hours to obtain allyl polyoxyethylene ether phosphate.

[0030] Add 200g of the above-mentioned allyl polyoxyethylene ether phosphate, 50g of perfluorooctyl alcohol polyoxyethylene ether acrylate (p=15), and 83g of water into a glass kettle, fully dissolve and mix well. Mix 70g of acrylamide with 18g of water to make an 80% solution. Mix 1.92g of ammonium persulfate and 2.07g of thioglycolic acid to prepare an aqueous solution with a mass concentration of 15%. The water bath was warmed to 85°C. The acrylamide solution and the initiator solution were added dropwise, the acrylamide was added...

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PUM

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Abstract

The invention discloses a preparation method of a comb type high-molecular flotation agent. The preparation method is characterized by comprising the following concrete steps: (1) preparing allyl-polyoxyethylene ether phosphate; (2) preparing a comb type high-molecular polymer: adding allyl-polyoxyethylene ether phosphate, fluoro-alcohol polyoxyethylene ether (methyl) acrylate, acrylamide and water into a reaction kettle, and reacting at the temperature of 80-100 DEG C for 3-5h under the action of an oxidation-reduction initiating system to obtain the comb type high-molecular polymer, wherein the mole ratio of allyl-polyoxyethylene ether phosphate to fluoro-alcohol polyoxyethylene ether (methyl) acrylate to acrylamide is 1: (0.05-0.5): (3-5), the dosage of an oxidizing agent is 0.5-5% of the sum of the mass of unsaturated monomers, and the mole ratio of the oxidizing agent to a reducing agent is 1: (0.5-3.5).

Description

technical field [0001] The invention relates to a preparation method of a comb-shaped polymer flotation agent. Background technique [0002] Flotation beneficiation is an important method of mineral separation, which is widely used in coal, non-metal, non-ferrous metal and many other fields. In the flotation process, the ups and downs of minerals have almost nothing to do with their density, but due to the difference in surface hydrophilicity-hydrophobicity and wettability, which is called buoyancy. Among them, the application of flotation agents is extremely important. After being treated with flotation reagents, the buoyancy of minerals can be changed, so that the target minerals can be selectively adsorbed on the air bubbles, so as to achieve the purpose of mineral processing. [0003] The coal flotation process is as follows: the coal powder is made into a certain concentration of coal slurry, and a flotation agent is added to expand the difference in wettability and h...

Claims

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Application Information

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IPC IPC(8): C08F283/06C08F220/56C08F4/40C08G65/00B03D1/016
Inventor 宋学娟郝立国
Owner 焦作超达环保科技有限公司
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