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Preparation method of reusable highly-oil-absorbing sponge

A high oil absorption and sponge technology, applied in separation methods, chemical instruments and methods, liquid separation, etc., can solve the problems of low reuse rate, low oil absorption rate, and easy damage to oil-absorbing sponge pores, so as to reduce damage and high porosity. rate, enhance the effect of oil-water separation

Inactive Publication Date: 2018-07-24
吴刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is aimed at the defects that when the oil-absorbing sponge is used to separate the oil-water mixture in the current oil spill, the oil-absorbing ratio is low, and the inner pores of the oil-absorbing sponge are easily damaged after being washed by oil and water, resulting in a low recycling rate. Provided is a preparation method for reusable high oil-absorbing sponge

Method used

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  • Preparation method of reusable highly-oil-absorbing sponge

Examples

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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, stir and mix at a speed of 300r / min for 35min, put 60mL of dimethyl sulfoxide solution of E-51 epoxy resin with a mass fraction of 40% into the constant pressure drop In the funnel, drop the dimethyl sulfoxide solution of E-51 type epoxy resin into the four-necked flask with a constant pressure dropping funnel at a rate of 5 mL / min, and keep the reaction for 6 hours to obtain the reaction pro...

example 2

[0028] Take 225g of sepiolite, place 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% into 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 agitator, stirring and mixing at a speed of 325r / min for 38min, and putting 68mL of dimethyl sulfoxide solution of E-51 epoxy resin with a mass fraction of 40% into constant pressure drops In the liquid funnel, drop the dimethyl sulfoxide solution of E-51 type epoxy resin in the four-necked flask with a constant pressure dropping funnel at a rate of 7mL / min, and keep the reaction for 7h to obtain the reaction product; Wash the above reaction product with water and ethanol for 4 times, then place t...

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, stir and mix at a speed of 350r / min for 40min, put 75mL of dimethyl sulfoxide solution of E-51 epoxy resin with a mass fraction of 40% into the constant pressure drop In the funnel, drop the dimethyl sulfoxide solution of E-51 type epoxy resin into the four-necked flask with a constant pressure dropping funnel at a rate of 10mL / min, and keep the reaction for 8h to obtain the reaction product...

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Abstract

The invention relates to a preparation method of an oil-absorbing material and particularly relates to a preparation method of reusable highly-oil-absorbing sponge. The preparation method comprises the following steps of: mixing and dispersing sepiolite and phosphoric acid solution to obtain activated stone slurry; placing self-made nanofiber into the activated stone slurry, and carrying out suction filtration to obtain wood-stone fiber sponge; adopting reeds as raw materials, mixing the dried reed powder and nanofiber sponge slurry to obtain dispersed slurry; mixing the substances including wood-stone fiber sponge, polydimethylsiloxane, chicken oil, yeast powder, water and the like into a fermenting tank, and by fermenting modification, obtaining oleophylic modified sponge; finally, plating a layer of copper film on the surfaces of inner pores of the oleophylic modified sponge to obtain the reusable highly-oil-absorbing sponge. The preparation method has the beneficial effects that the wood-stone fiber sponge is doped into polyethylene melt at the temperature of 160-200 DEG C, so that the interface bonding strength between the lignin and the sepiolite fiber is enhanced, the damageof the inner surfaces of the sponge when being washed by the liquid is reduced, and the oil-absorbing sponge can be reused and is wide in application prospect.

Description

technical field [0001] The invention relates to a method for preparing an oil-absorbing material, in particular to a method for preparing a reusable high oil-absorbing sponge. Background technique [0002] With the development of society and economy, people's production activities continue to pollute water resources, seriously threatening the natural environment on which people live. In recent years, oil spills and industrial sewage discharges have increasingly polluted the ocean and water ecological environment. The leaked oil floats on the water surface, easily spreads and forms a layer of oil film or oil-water emulsion, which isolates the water body from the air, reduces the oxygen content in the water, and thus leads to the death of a large area of ​​marine organisms. On the other hand, there are often many toxic and harmful substances in oil pollution, such as benzopyrene, heavy metal ions, etc., which can enter the human body through layers of the food chain, endanger...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01D17/022B01J20/30
CPCB01J20/12B01D17/0202B01J20/02B01J20/0292B01J20/24B01J20/265
Inventor 吴刚何伟仁张建初
Owner 吴刚
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