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Preparation method of modified attapulgite clay particles as oil spill dispersant

A technology of attapulgite clay and oil spill dispersant, which is applied in chemical instruments and methods, transportation and packaging, and other chemical processes, and can solve the problems of unclear mechanism of marine biological toxicity, secondary pollution of ecology and environment, etc. Achieve the effects of long emulsion stability, no secondary pollution, and good salt resistance

Inactive Publication Date: 2018-10-12
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of chemical oil pollution dispersants also faces serious problems. For example, the use of dispersants is often affected by oil spills and the marine environment, and its toxic mechanism for marine organisms is not yet clear, which may cause ecological and environmental damage. Secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] In an embodiment of the present invention, a method for preparing modified attapulgite clay particles as an oil spill dispersant comprises the following steps:

[0018] 1) Preparation of attapulgite clay particles: first activate attapulgite clay particles with 37% HCl (hydrogen chloride, hydrochloric acid) at room temperature for 24 hours, then wash with distilled water to pH = 6, and dry the samples at 105 °C For 8 hours, grind the purified attapulgite clay particles to a powder sample with a particle size of less than 200 mesh by a grinder;

[0019] 2) Preparation of biosurfactant-modified attapulgite clay particles: the biosurfactant was prepared into aqueous solutions of different concentrations, and the attapulgite clay particles prepared in step 1) were dispersed in the water phase, and the biological surface The active agent solution is mixed with attapulgite clay particles dispersed in water, and an environmentally friendly biosurfactant-modified attapulgite cl...

Embodiment 1

[0024] First, the attapulgite clay particles were activated with 37% HCl at room temperature for 24 hours, washed with distilled water to pH = 6, the samples were dried at 105 °C for 8 hours, and the purified attapulgite clay particles were ground by a grinder to a powder sample with a particle size of less than 200 meshes, then disperse the purified attapulgite clay particles in the water phase, prepare the rhamnolipid into a rhamnolipid solution, mix the rhamnolipid solution with the attapulgite dispersed in water Mixing for 30min, controlling the concentration of rhamnolipid solution to 0.04g / L, and the mass fraction of attapulgite to 1%, based on the intermolecular interaction, the environment-friendly biosurfactant-modified attapulgite clay particles were prepared. Oil spill dispersant.

[0025] The prepared modified attapulgite clay particle oil spill dispersant was mixed with n-tetradecane, the added dispersant amount was 5% of the oil spill, and the oil-water volume ra...

Embodiment 2

[0027] First, the attapulgite clay particles were activated with 37% HCl at room temperature for 24 hours, washed with distilled water to pH = 6, the samples were dried at 105 °C for 8 hours, and the purified attapulgite clay particles were ground by a grinder to a powder sample with a particle size of less than 200 mesh, then disperse the purified attapulgite clay particles in the water phase, prepare the sophorolipid solution into a sophorolipid solution, mix the sophorolipid solution with the attapulgite dispersed in water for 30 minutes, Controlling the concentration of sophorolipid solution to 0.04g / L and the mass fraction of attapulgite to 1%, the oil spill dispersant of attapulgite clay particles modified by environment-friendly biosurfactant was prepared based on the intermolecular interaction .

[0028] The prepared modified attapulgite clay particle oil spill dispersant was mixed with n-tetradecane, the added dispersant amount was 5% of the oil spill, and the oil-wat...

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PUM

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Abstract

The invention discloses a preparation method of modified attapulgite clay particles as an oil spill dispersant. The method comprises the following steps of preparation of attapulgite clay particles, preparation of the attapulgite clay particles modified by a bio-surfactant and an experiment method for dispersing oil pollution in sea water by means of modified attapulgite; through the steps, emulsification, dispersion and long-term stabilization of the oil pollution with different characters in the sea water environment are achieved. The oil spill dispersant prepared through the method has theadvantages that the preparation method is simple, and the implementation performance is high; the oil spill dispersant is non-toxic, harmless, green and environmentally friendly and does not cause secondary pollution to the marine environment; the oil spill dispersant is good in emulsification effect, and emulsion stabilization time is long; the oil spill dispersant is good in temperature resistant effect and salt resistant effect and suitable for the marine environment; relative inventions have wide application prospects in the field of marine oil spill treatment.

Description

technical field [0001] The invention relates to a marine oil spill dispersant, in particular to a method for preparing modified attapulgite clay particles as an oil spill dispersant. Background technique [0002] With the development of oil refining and petrochemical industries, people continue to expand the scale of offshore oil and gas development. Offshore oil spill accidents occur frequently, and a large amount of oil spills into the ocean, seriously endangering the marine environment. Once offshore oil pollution occurs, physical, chemical and biological methods must be taken immediately to deal with it. The use of oil spill dispersants is one of the commonly used chemical emergency measures. Very low case. Monitoring and research results show that after the use of dispersants, the oil film on the sea surface spreads rapidly, and the emulsified oil droplets can avoid contaminating seabirds and spilling oil ashore, and because the oil-water contact area is significantly ...

Claims

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Application Information

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IPC IPC(8): C09K3/32B01F17/00B01F17/56C09K23/00C09K23/56
CPCC09K3/32C09K23/017
Inventor 李一鸣陈大凡包木太王爱芹侯亚杰
Owner OCEAN UNIV OF CHINA
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