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Preparation method of amphiphilic silicon dioxide solid particle-based marine oil spill dispersant

The technology of an oil spill dispersant and hydrophilic silica is applied in the field of preparation of amphiphilic silica solid particle-based marine oil spill dispersant, which can solve the problem that the emulsifying performance cannot be further improved, and the solid particles do not have amphiphilicity. and other problems, to achieve the effect of good emulsification effect, long stability time and strong implementation.

Inactive Publication Date: 2019-04-23
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with surfactants, solid particles are not amphiphilic and cannot further improve emulsifying performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 62mL of water, 179mL of ethanol, 9mL of ammonia water and 15.6mL of tetraethyl orthosilicate were thoroughly mixed and mixed for 2 hours using a shaker to form a white product. Centrifuge and wash with absolute ethanol, and vacuum dry to obtain hydrophilic silicon dioxide solid particles. In the hydrophilic silicon dioxide solid particles, water and benzene are added in turn to control the amounts of hydrophilic silicon dioxide particles, water and benzene respectively 1g, 0.12mL and 20mL, after mixing evenly, add octadecyltrimethoxysilane and triethylamine, disperse to form an emulsion, and then stir it with a magnetic force, centrifuge the obtained product and wash it with absolute ethanol, and dry it in vacuum. Amphiphilic silica solid particles are obtained.

[0025] Add the prepared amphiphilic silica solid particle oil spill dispersant to the mixture of n-tetradecane and deionized water, control the oil-water volume ratio to 1:4, and the particle dosage is 6.3wt%....

Embodiment 2

[0027] 62mL of water, 179mL of ethanol, 9mL of ammonia water and 15.6mL of tetraethyl orthosilicate were thoroughly mixed and mixed for 2 hours using a shaker to form a white product. Centrifuge and wash with absolute ethanol, and vacuum dry to obtain hydrophilic silicon dioxide solid particles. In the hydrophilic silicon dioxide solid particles, water and benzene are added in turn to control the amounts of hydrophilic silicon dioxide particles, water and benzene respectively 1g, 0.12mL and 20mL, after mixing evenly, add octadecyltrimethoxysilane and triethylamine, disperse to form an emulsion, and then stir it with a magnetic force, centrifuge the obtained product and wash it with absolute ethanol, and dry it in vacuum. Amphiphilic silica solid particles are obtained.

[0028] The prepared amphiphilic silica nanoparticle oil spill dispersant was added to the mixture of n-tetradecane and seawater, the oil-water volume ratio was controlled to be 1:4, and the particle dosage was...

Embodiment 3

[0030] 62mL of water, 179mL of ethanol, 9mL of ammonia water and 15.6mL of tetraethyl orthosilicate were thoroughly mixed and mixed for 2 hours using a shaker to form a white product. Centrifuge and wash with absolute ethanol, and vacuum dry to obtain hydrophilic silicon dioxide solid particles. In the hydrophilic silicon dioxide solid particles, water and benzene are added in turn to control the amounts of hydrophilic silicon dioxide particles, water, and benzene respectively. 1g, 0.12mL and 20mL, after mixing evenly, add octadecyltrimethoxysilane and triethylamine, disperse to form an emulsion, and then stir it with a magnetic force, centrifuge the obtained product and wash it with absolute ethanol, and dry it in vacuum. Amphiphilic silica solid particles are obtained.

[0031] Add the prepared amphiphilic silica solid particle oil spill dispersant to the mixture of n-tetradecane and seawater, control the oil-water volume ratio to 1:4, and the particle dosage is 3.15wt%. Th...

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Abstract

The invention relates to the field of offshore petroleum exploration, in particular to a preparation method of an amphiphilic silicon dioxide solid particle-based marine oil spill dispersant, including the following steps: preparation of hydrophilic silicon dioxide nanoparticles; preparation of amphiphilic silicon dioxide solid particles; and an experimental method for emulsifying and dispersing oil stains in seawater by amphiphilic silicon dioxide solid particles. The amphiphilic silicon dioxide solid particles have the dual advantages of solid particles and chemical surfactants and can achieve efficient dispersion of different oil stains in seawater, and the dispersed oil droplets have better time stability. The preparation method of the amphiphilic silicon dioxide solid particle-based marine oil spill dispersant has the advantages of environmental friendliness, no secondary pollution to the ecology and environment of the ocean, good emulsifying and dispersing effect, long stabilitytime of oil droplets after dispersion, good temperature and salt tolerance effect, high suitability of marine environment, excellent emulsification and dispersion ability for oil stains with various characteristics, and the related invention has wide application prospects in the treatment of marine oil spill.

Description

technical field [0001] The invention relates to the field of offshore oil exploration, in particular to a preparation method of an amphiphilic silica solid particle-based marine oil spill dispersant. Background technique [0002] In recent years, with the increasing frequency of offshore oil exploration and development and marine transportation activities, oil spill accidents have occurred frequently, and marine oil spill pollution has become one of the most important threats to the marine environment. After the oil spilled into the ocean, a large oil film is formed. On the one hand, it hinders the dissolution of oxygen in the air, making it difficult for marine organisms to survive due to lack of oxygen. On the other hand, the toxic substances in the oil slick will enter the food chain of marine organisms, enrich through the food chain, cause harm to the organisms in the food chain, and even endanger human health. After marine oil spills, in order to restore the marine env...

Claims

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Application Information

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IPC IPC(8): C09K3/32
CPCC09K3/32
Inventor 李一鸣侯亚杰包木太陈大凡于丹丹
Owner OCEAN UNIV OF CHINA
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