Method for preparing high-performance oil-water separation membrane

An oil-water separation membrane, high-performance technology, applied in separation methods, liquid separation, semi-permeable membrane separation, etc., can solve the problems of unsatisfactory oil-water separation effect, poor anti-pollution ability, fast flux attenuation, etc., and achieve anti-oil pollution Improved capacity, strong oil-water separation capacity, and high water flux

Active Publication Date: 2021-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the existing problems in the prior art, such as poor film-forming property, poor anti-poll

Method used

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  • Method for preparing high-performance oil-water separation membrane
  • Method for preparing high-performance oil-water separation membrane
  • Method for preparing high-performance oil-water separation membrane

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0053]Example 1】

[0054]Preparation of metal organic skeleton material:

[0055](1) Take 3.00 g of zirconium tetrachloride powder, 3.12 g of nitroophenylene terephthalic acid powder, 0.20 g of deionized water, mixed with 360 g of N, N dimethylformamide, ultrasonic treatment 12min , Make it fully dissolved.

[0056](2) Transfer the solution in the flask to the stainless steel reactor of the polytetrafluoroethylene, placed in the convection heating furnace to 10 ° C, reactive 36h; after the reaction is completed, the reaction is cooled to collect the reaction product. The reaction product was transferred to the centrifuge tube, at 14000 rpm spin, centrifuged for 18 min, and solid particulate matter was separated. Under normal temperature conditions, the solid particulate matter obtained by the reaction was washed with ethanol solution, and the solid particulate matter obtained after the washing was separated by centrifugation using the separation method. The above-washed solid particles were ...

Example Embodiment

[0058][Example 2]

[0059]Preparation of metal organic skeleton materials:

[0060](1) Take 30 g of zirconium tetrachloride powder, 31.2 g of nitro phenylene terephthalic acid powder, 1.5 g of deionized water, mixed with 30 kg n, N dimethylformamide, and tested 35 min, Make it fully dissolved.

[0061](2) Transfer the solution in the flask to the stainless steel reaction kettle of the polytetrafluoroethylene liner, placed in the convection heating furnace to 10 ° C, reaction 45 h; after the reaction is completed, the reaction is cooled to collect the reaction product. The reaction product was transferred to the centrifuge tube, at 14800 rpm rotation, centrifuged for 32min, and solid particulate matter was separated. Under normal temperature conditions, the reaction obtained solid particles were washed with ethanol solution for 38 h, and then the solid particulate matter obtained after the washing was separated by centrifugation using the separation method. The solid particles after washing w...

Example Embodiment

[0063][Example 3]

[0064](1) 9 parts by mass of dry polyether sulfone, 3 parts by mass of polymerized monomer 2-methacryloxyethyl phospholine (MPC) is dissolved in 58 parts by mass N, N-dimethyl In formamide and 29.4 parts by mass of ethanol mixed solution, 0.06 parts by mass of azo diisobutyronitrile was added, and at 60 ° C for 24 h at 60 ° C under protectiveness of the helium gas.

[0065](2) After the end, the metal organic skeleton prepared by 1.0 parts by mass of Example 2 was dissolved at 40 ° C, and the cast film solution was formed after evacuating.

[0066](3) Fixing the pretreated base film on the scraper machine, filming according to the following parameters, the base film speed: 1.2 m / s, the thickness between the sizes between the blade and the base film is 250 μm, and the cast film After the liquid is scraped to the surface of the base film, the base film containing the cast film solution is immersed in water, and the oil-water separation film having high performance can be ...

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Abstract

The invention provides a method for preparing a high-performance oil-water separation membrane, which comprises the following steps of: S1, preparing a mixed solution containing a polymeric monomer, an initiator, a membrane material and an organic solvent, and carrying out polymerization reaction; S2, adding a metal organic framework material into the reaction solution obtained in the step S1 to obtain a membrane casting solution; and S3, coating the surface of a base membrane with the membrane casting solution, and carrying out membrane forming treatment to obtain the high-performance oil-water separation membrane. The prepared oil-water separation membrane is high in hydrophilicity, mechanical property and mechanical strength, high in water flux and high in oil-water separation capacity, and the technical scheme is easy for industrial production and has a wide application prospect in the field of oily sewage treatment.

Description

technical field [0001] The invention relates to a method for preparing a high-performance oil-water separation membrane, in particular to a technical method for preparing an oil-water separation membrane by blending and polymerizing a metal organic framework material and a polymer monomer. Background technique [0002] With the continuous deepening of oil and gas fields and the large-scale application of tertiary oil recovery technology, the water content of crude oil production fluid is getting higher and higher, and the water content of crude oil production fluid in some blocks of Daqing Oilfield is as high as 95%. If the high water content in the produced fluid is not removed and separated, it will bring great harm to production, transportation and refining. It may even cause great harm to the local environment. [0003] At present, the commonly used oil-water separation methods include gravity sedimentation method, air flotation method, adsorption method, chemical demul...

Claims

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Application Information

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IPC IPC(8): B01D69/02B01D67/00B01D17/022C02F1/40C02F1/44
CPCB01D69/02B01D67/0002B01D67/0011B01D67/0013B01D71/68B01D71/34B01D17/085B01D17/02C02F1/44C02F1/40C10G33/06B01D2323/02B01D2325/36C10G2300/1033
Inventor 孟凡宁郦和生魏昕王成鸿
Owner CHINA PETROLEUM & CHEM CORP
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