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Ultra-light magnetic oil absorption material and preparation method thereof

A magnetic absorption and ultra-light technology, applied in chemical instruments and methods, and other chemical processes, can solve the problems of heavy magnetic oil-absorbing materials, cumbersome preparation methods, and harsh reaction conditions, achieving mild reaction conditions, simple preparation methods, Effect of Strong Magnetic Field Response Performance

Inactive Publication Date: 2014-08-06
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current preparation methods of magnetic oil-absorbing materials are cumbersome, the reaction conditions are harsh, and the quality of the prepared magnetic oil-absorbing materials is relatively heavy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1.2 g of ferric oxide nanoparticles, 5.8 g of activated carbon and 0.2 g of polystyrene were dispersed in a mixed solvent of ethanol and water, ultrasonically treated for 4 hours, then treated with liquid nitrogen, freeze-dried for 24 hours, and then dried at 500 ℃ treatment for 6 hours, then cooled to room temperature, the ultra-light magnetic oil-absorbing material was prepared.

Embodiment 2

[0026] Disperse 5.8 g of iron ferric oxide nanoparticles, 35.6 g of expanded graphite and 3.2 g of polymethyl methacrylate in tetrahydrofuran, sonicate for 3 hours, then treat with liquid nitrogen, freeze-dry for 56 hours, and then freeze-dry at 700°C After processing for 3 hours, cooling to room temperature, an ultra-light magnetic oil-absorbing material can be prepared.

Embodiment 3

[0028] Disperse 2.5 g of iron nanoparticles, 45.5 g of graphene and 0.8 g of polyethylene glycol in water, sonicate for 8 hours, and then use supercritical CO 2 Dry for 4 hours, then treat at 400° C. for 2 hours, and cool to room temperature to obtain an ultra-light magnetic oil-absorbing material.

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PUM

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Abstract

The invention discloses a preparation method of an oil absorption material which is ultra-light in weight and has magnetic field response performance. The method comprises the following concrete preparation processes: dispersing magnetic nanoparticles, a porous material and a functional polymer into a dispersion medium; ultrasonically dispersing, and then drying by a freeze-drying method or a supercritical fluid drying method, and carrying out high-temperature treatment so as to obtain the magnetic oil absorption material which is very low in mass and has a porous structure. The method has the characteristics of being simple in preparation process, simple and feasible in reaction condition, and easy to achieve large-scale production; the prepared material can be applied to treatment of marine oil leakage, and separation of hazardous organic compounds in industrial sewage. The ultra-light magnetic oil absorption material floats on water to adsorb crude oil or organic matters when being used due to light weight, and quick magnetic separation and enrichment can be achieved after adsorption is ended.

Description

technical field [0001] The invention relates to an ultra-light magnetic oil-absorbing material and a preparation method thereof, belonging to the field of functional materials for oil and gas fields. Background technique [0002] With the rapid development of economy and society, people's demand for petroleum and petroleum products has increased dramatically. In the process of crude oil extraction, transportation, processing, storage and use, due to operational errors or improper handling of accidents, crude oil leakage accidents often occur. Crude oil spills not only pollute oceans and freshwater systems and destroy the ecological environment, but also ultimately threaten human health through the biological chain. In particular, the damage caused by oil spill accidents at sea has the characteristics of wide spread, high degree of harm, difficult post-processing and high processing costs. Treatment with oil-absorbing materials is one of the most effective methods to deal w...

Claims

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Application Information

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IPC IPC(8): C09K3/32
Inventor 武元鹏朱春阳林元华周莹谢娟杨浩晏柱周昌亮
Owner SOUTHWEST PETROLEUM UNIV
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