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Organic polymer synthetic membrane based on antimony tailings and preparation method and application thereof

A technology of antimony tailings and polymers, which is applied in the direction of chemical instruments and methods, membranes, membrane technology, etc., can solve the problems of complex production process and technology, weak anti-fouling ability, and difficult cleaning, and achieves the reduction of preparation cost and anti-corrosion Strong staining ability and soft texture

Active Publication Date: 2020-04-10
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex manufacturing process and technology of the membrane, easy clogging, not easy to clean, weak anti-fouling ability, high production cost, etc., it has become a major problem in membrane technology.

Method used

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  • Organic polymer synthetic membrane based on antimony tailings and preparation method and application thereof
  • Organic polymer synthetic membrane based on antimony tailings and preparation method and application thereof
  • Organic polymer synthetic membrane based on antimony tailings and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: The organic polymer synthetic film based on antimony tailings is made of the following components: N-methylpyrrolidone 76%, polyvinylidene fluoride 13%, glycerol 4.5%, polyethylene 4.5%, leaching 1% of antimony tailings after leaching agent and 1% of anhydrous lithium chloride; the antimony tailings after leaching agent leaching are the tailings produced after smelting the antimony ore in a sulfuric acid solution with a volume concentration of 10%. ℃, electric field strength 1V / m, stirring and leaching for 60 minutes, filtering, washing the filter residue with water until the pH of the washing liquid is 6, then drying and pulverizing to a particle size of less than 25μm. The solid-liquid ratio of antimony tailings and sulfuric acid is g:mL 1:10;

[0028] The preparation method of the above-mentioned antimony tailing-based organic polymer synthetic film is as follows:

[0029] (1) Mix N-methylpyrrolidone, polyvinylidene fluoride, polyethylene, glycerol, antimony t...

Embodiment 2

[0036] Example 2: The organic polymer synthetic film based on antimony tailings is made of the following composition: methyl acetate 72%, polystyrene 14%, ethylene glycol 4%, polyoxyethylene 4%, after leaching the leaching agent 5% of antimony tailings and 1% of anhydrous lithium chloride; the antimony tailings after leaching of the leaching agent are the tailings produced after smelting the antimony ore in a sulfuric acid solution with a volume concentration of 15%, at 40℃, electric field Stirring and leaching for 45 minutes at an intensity of 0.5V / m, filtering, washing the filter residue with water until the pH of the washing solution reaches 7, and then drying and pulverizing to a particle size of less than 25μm. The solid-to-liquid ratio of antimony tailings and sulfuric acid, g:mL, is 1: 12;

[0037] The preparation method of the above-mentioned antimony tailing-based organic polymer synthetic film is as follows:

[0038] (1) Mix methyl acetate, polystyrene, ethylene glycol, ...

Embodiment 3

[0045] Example 3: The organic polymer synthetic film based on antimony tailings is made of the following composition:

[0046] 1. 76% of N-methylpyrrolidone, 13% of polyvinylidene fluoride, 4.5% of polyethylene, 4.5% of glycerol, 1% of antimony tailings after leaching with leaching agent, 1% of anhydrous lithium chloride;

[0047] 2. 75% methyl isobutyl ketone, 13% polyurethane, 4.5% polyethylene, 4.5% ethylene glycol, 3% antimony tailings after leaching agent, and 1% sodium bicarbonate;

[0048] 3. Acetonitrile 71%, polystyrene 14%, polyoxyethylene-polyoxypropylene copolymer 4.5%, acid phosphate amine salt 4.5%, antimony tailings 5% after leaching agent, PVA 1%;

[0049] 4. Methyl acetate 70%, polyacrylate 13%, polyethylene 4.5%, glycerol 4.5%, antimony tailings 7% after leaching agent, PEG 1%;

[0050] 5. Ethyl acetate 70%, polyvinylidene fluoride 11%, polyoxyethylene 4%, alkyl succinimide 4%, antimony tailings 10% after leaching agent, and urea 1%;

[0051] 6. Propyl acetate 70%, ethy...

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Abstract

The invention discloses an organic polymer synthetic membrane based on antimony tailings and a preparation method thereof. The organic polymer synthetic membrane is prepared from the following components in percentage by mass: 70%-80% of an organic solvent, 10%-15% of an adhesive, 4%-5% of an anti-freezing material, 4%-5% of a surfactant, 1%-7% of antimony tailings leached by a leaching agent and1% of a pore-foaming agent. The organic polymer synthetic membrane based on the antimony tailings is soft in texture, uniform in crystal lattice distribution, high in mechanical performance and not prone to damage; moreover, the synthetic membrane is high in hydrophilic performance, resistant to corrosion and high temperature, good in permeability and high in anti-pollution capacity, the preparation process of the synthetic membrane is simple, high-temperature sintering is not needed, and the preparation cost is greatly reduced.

Description

Technical field [0001] The invention belongs to the technical field of solid waste utilization and membrane separation, and specifically relates to an organic polymer synthetic membrane based on antimony tailings and a preparation method thereof. Background technique [0002] Membrane separation technology is one of the most advanced sewage treatment technologies in the world in recent years. Nowadays, most of the membranes on the market are synthetic membranes of ordinary polymers through thermoplastics, which is a method of separating, classifying, purifying and enriching the mixture by means of selective osmosis of the membrane. The operating principle is based on the "sieving" theory. The permeability varies according to the molecular diameter of the material that penetrates within a certain membrane pore size. The pressure difference is used as the driving force to allow small molecular substances to pass through and large molecular substances to be intercepted. , To achiev...

Claims

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Application Information

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IPC IPC(8): B01D69/02B01D67/00
CPCB01D69/02B01D67/0002B01D2325/36B01D2325/24
Inventor 瞿广飞吴丰辉李江松李军燕任远川宁平
Owner KUNMING UNIV OF SCI & TECH
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