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Preparation method of oil-water separation membrane

A technology for oil-water separation membranes and preparation steps, applied in separation methods, liquid separation, chemical instruments and methods, etc., can solve problems such as poor impact resistance, limited separation effect of small particle suspended oil and dissolved oil, and achieve high porosity , enhance the oil-water separation effect, and have broad application prospects

Inactive Publication Date: 2018-11-06
FOSHAN LINGXIE ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main technical problem to be solved by the present invention is to provide an oil-water separation membrane for the current oil-water separation membrane, which has limited effect on the separation of small particle suspended oil and dissolved oil, and the oil-water separation membrane has poor impact resistance when it is applied to offshore crude oil spills. preparation method

Method used

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  • Preparation method of oil-water separation membrane

Examples

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Effect test

example 1

[0026] Take 200g of sepiolite, put it in a stone grinder and grind for 2 hours, pass through a 200-mesh sieve to obtain sepiolite powder, add 400mL of phosphoric acid solution with a mass fraction of 30% to the plastic basin, pour the sepiolite powder into the plastic basin, and stir Disperse for 40 minutes to obtain a sepiolite suspension, inject 8L of ammonia gas into the sepiolite suspension to obtain activated stone slurry; add 40g of β-cyclodextrin, 12g of sodium hydroxide and 200mL of distilled water into a four-necked flask, Heat the flask in a water bath to 80°C, start the stirrer, mix and stir at a speed of 300r / min for 35min, and put 60mL of dimethyl sulfoxide solution of E-51 epoxy resin with a mass fraction of 40% into the constant pressure dropping funnel , use a constant pressure dropping funnel to drop the dimethyl sulfoxide solution of E-51 type epoxy resin to the four-necked flask at a dropping rate of 5mL / min, keep the temperature for 6h, and obtain the reacti...

example 2

[0028] Take 220g of sepiolite, put it in a stone grinder and grind for 2.5h, pass through a 200-mesh sieve to obtain sepiolite powder, add 450mL of phosphoric acid solution with a mass fraction of 30% to the plastic basin, pour the sepiolite powder into the plastic basin, Stir and disperse for 45 minutes to obtain a sepiolite suspension, inject 9L of ammonia gas into the sepiolite suspension to obtain activated stone slurry; Heating the flask in a water bath to 85°C, starting the stirrer, mixing and stirring at a speed of 320r / min for 37min, and putting 70mL of dimethyl sulfoxide solution of E-51 epoxy resin with a mass fraction of 40% into the constant pressure drop Funnel, use a constant pressure dropping funnel to add the dimethyl sulfoxide solution of E-51 epoxy resin dropwise to the four-necked flask at a dropping rate of 7mL / min, keep the temperature for 7h, and obtain the reaction product; wash with absolute ethanol The above reaction product was washed 4 times, and the...

example 3

[0030] Take 250g of sepiolite, put it in a stone grinder and grind for 3 hours, pass through a 200-mesh sieve to obtain sepiolite powder, add 500mL of phosphoric acid solution with a mass fraction of 30% to the plastic basin, pour the sepiolite powder into the plastic basin, and stir Disperse for 50 minutes to obtain a sepiolite suspension, inject 10L of ammonia gas into the sepiolite suspension to obtain activated stone slurry; add 50g of β-cyclodextrin, 15g of sodium hydroxide and 300mL of distilled water into a four-necked flask, Heat the flask in a water bath to 90°C, start the stirrer, mix and stir at a speed of 350r / min for 40min, and put 75mL of dimethyl sulfoxide solution of E-51 epoxy resin with a mass fraction of 40% into the constant pressure dropping funnel , add the dimethyl sulfoxide solution of E-51 type epoxy resin dropwise to the four-necked flask with a constant pressure dropping funnel at a dropping rate of 10mL / min, and keep the reaction for 8 hours to obtai...

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Abstract

The invention discloses a preparation method of an oil-water separation membrane, and belongs to the technical field of environmental protection. According to the method, wood stone fiber is mixedintopolyvinylidene chloride melt in a suitable temperature condition, and lignin reaches glassy state, is softened and flows under high pressure; nanofiber sponge is prepared from resin soaked activatedstone pulp; sea-foam stone powder in the activated stone pulp belongs to a magnesium-enriched silicate compound, can magnesium hydroxide crystal and ammonium phosphate under the action of ammonia gasand phosphoric acid, not only ensures that oil absorption sponge has high porosity, but also ensures that the oil absorption sponge has certain flame retardant property; firstly scale has a bionic hydrophobic structure, and a separation membrane structure with a hydrophobic exterior; finally during the process of copper film plating, the internal surface area of fiber fabric is greatly increased through activation of phosphoric acid, and a plurality of active centers are formed in the surface of the fiber fabric; granule suspension oil and dissolved oil liquid can be easily absorbed into interiors of pores, so that damage to the inner surface of the fiber sponge is weakened when the inner surface is scoured by liquid, and the oil-water separation membrane has a wide application prospect.

Description

technical field [0001] The invention discloses a preparation method of an oil-water separation membrane, which belongs to the technical field of environmental protection. Background technique [0002] Oily sewage comes from a wide range of sources. In industries such as petroleum, chemical industry, steel, coking, gas generation stations, machinery manufacturing and food processing, all water that is in direct contact with oil contains oil. Oil is divided into polar oil and non-polar oil. Polar oil comes from animals and is biodegradable; non-polar oil comes from petroleum and other mineral resources and is difficult to biodegrade. Oil floats on the surface of the sea and spreads rapidly to form an airtight oil film that hinders the reoxygenation of water bodies, affects the growth of marine plankton, and destroys the ecological balance of the ocean. [0003] With the increase of population, the burden of urban living environment is increasing, and the problem of resource s...

Claims

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Application Information

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IPC IPC(8): B01D17/022
CPCB01D17/0202
Inventor 胡丽春邓博朱彩娣
Owner FOSHAN LINGXIE ENVIRONMENTAL PROTECTION TECH CO LTD
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