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Preparation method of modified shaddock peel fiber oil absorption material

A technology of oil-absorbing materials and pomelo peels, applied in chemical instruments and methods, and other chemical processes, can solve the problems of non-biodegradable, poor oil retention performance, low oil absorption multiple, etc. It is beneficial to achieve low temperature conditions, high oil absorption, and The effect of small fluctuations in oil absorption ratio

Inactive Publication Date: 2018-04-13
吴刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for preparing a modified pomelo peel fiber oil-absorbing material in view of the existing oil-absorbing materials with low oil absorption multiple, poor oil retention performance and non-biodegradable problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] Remove the outer skin of the pomelo peel and collect the white floc, wash it twice with deionized water, air-dry it naturally, put it into a pulverizer and crush it, pass through a 40-mesh sieve to get the pretreated pomelo peel, take 300g of the pretreated pomelo peel and put it into Put it into the steam explosion tank, and feed 1.5MPa water vapor at 220°C into the steam explosion tank, keep it for 3 minutes, open the valve of the steam explosion tank instantly, release the pressure to normal pressure, take it out, and then soak it in 2L of deionized water at 80°C Take out the water for 40 minutes, take it out and dry it naturally to get the steam explosion treated pomelo peel, take 100g of the steam explosion treated pomelo peel, add it to 2.0kg of 5% sodium chlorite solution, stir and react at 300r / min at 70°C for 30min, and use Adjust the pH to 4.0 with glacial acetic acid, filter to obtain a filter cake, add the filter cake to 2.0 kg of 5% sodium hydroxide solution...

example 2

[0025] Remove the outer skin of the pomelo peel and collect the white floc, wash it twice with deionized water, air-dry it naturally, put it into a pulverizer and crush it, pass through a 40-mesh sieve to get the pretreated pomelo peel, take 400g of the pretreated pomelo peel and put it into Put it into the steam explosion tank, and feed 2.0MPa water vapor at 230°C into the steam explosion tank, keep it for 3 minutes, open the valve of the steam explosion tank instantly, release the pressure to normal pressure, take it out, and then soak it in 2L of deionized water at 82°C Take out the water for 45 minutes, take it out and dry it naturally to get the steam explosion treated pomelo peel, take 110g of the steam explosion treated pomelo peel, add it to 2.2kg of 5% sodium chlorite solution, stir and react at 350r / min at 72°C for 40min, and use Adjust the pH to 4.2 with glacial acetic acid, filter to obtain a filter cake, add the filter cake to 2.2kg of 5% sodium hydroxide solution,...

example 3

[0027] Peel off the outer skin of the pomelo peel and collect the white floc, wash it with deionized water for 3 times, air-dry it naturally, put it into a pulverizer and crush it, pass through a 40-mesh sieve to get the pretreated pomelo peel, take 500g of the pretreated pomelo peel and put it into Put it into the steam explosion tank, and feed 2.5MPa water vapor at 250°C into the steam explosion tank, keep it for 4 minutes, open the valve of the steam explosion tank instantly, release the pressure to normal pressure, take it out, and then soak it in 3L of deionized water at 85°C Take out the water for 50 minutes, take it out and air-dry it naturally to get steam explosion treated grapefruit peel, take 120g of steam explosion treated grapefruit peel, add 2.4kg mass fraction to 5% sodium chlorite solution, stir and react at 400r / min at 75°C for 50min, and use Adjust the pH to 4.5 with glacial acetic acid, filter to obtain a filter cake, add the filter cake to 2.4 kg of 5% sodiu...

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Abstract

The invention relates to a preparation method of a modified shaddock peel fiber oil absorption material, and belongs to the technical field of adsorption materials. According to the method, shaddock peels serve as an oil absorption main body, condensation water in fiber cells are rapidly evaporated and expanded by the aid of high-temperature and high-pressure vapor, lignin coating effects and cellulose crystalline structures are broken, the porosity of the material is remarkably increased, fibers are treated by plasmas, more active sites on the surfaces of the fibers are activated, ester exchange modification is further performed, hydroxyl of small-molecular weight on cellulose is replaced by acetyl of large size, hydrogen bond acting force between molecules and hydrogen bond acting forcein the molecule are weakened, steric hindrance is increased, structures of crystalline areas are broken to some extent, condensed state structures of hemi-cellulose and lignin firmly coating crystalline cellulose are expanded, so that the porosity of the material after ester exchange modification is increased, hydrophobic oil affinity of the cellulose is improved, space structures of cellulose materials are enhanced, and oil absorption performance is enhanced.

Description

technical field [0001] The invention relates to a preparation method of a modified pomelo peel fiber oil-absorbing material, which belongs to the technical field of adsorbent materials. Background technique [0002] Oil spills are now one of the worst accidents that can destroy ecosystems. According to relevant reports and statistics, the oil and other pollutants leaked in recent decades have caused nearly 1,000 species of marine life to go extinct. The leaked petroleum hydrocarbon pollutants float on the sea surface to form an oil film, which greatly reduces the dissolved oxygen in the water, and marine organisms die due to lack of oxygen. In addition, nickel, vanadium, toxic organic substances in oil and some harmful substances produced during the decomposition of oil are scattered in the ocean, which not only pollutes water bodies, seriously affects the development of local fisheries and tourism, but also indirectly endangers human health. Due to the complexity of the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30
CPCB01J20/24B01J2220/485
Inventor 雷洪云王文新韩昏晓
Owner 吴刚
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