Corrosion-resistant oil-water separation mesh membrane as well as preparation method and applications thereof

Abstract

The invention discloses a corrosion-resistant oil-water separation mesh membrane as well as a preparation method and application thereof. The corrosion-resistant oil-water separation mesh membrane is a fiber braiding mesh coated with conducting polymer aquogel which is one or a mixture of some of polypyrrole, poly thiophene, polyaniline, polyparaphenylene, poly-m-toluidine,poly (1-methylene-2-methyl naphthalene) -N-pyrrole, poly ethylene dioxy thiophene, poly 3-ethyl thiophene, poly 3-hexyl thiophene and poly 2, 5-dimethoxy aniline; and the fiber braiding mesh is one of a metal fiber braiding mesh, an inorganic fiber braiding mesh and an organic fiber braiding mesh. The corrosion-resistant oil-water separation mesh membrane not only can implement the effective separation of different types of water and oil, but also has the favorable characteristics of salt resistance, strong acid resistance and strong alkaline resistance.

Description

technical field [0001] The invention relates to the technical field of oil-water separation, in particular to a corrosion-resistant oil-water separation mesh, a preparation method and application thereof. Background technique [0002] With the rise of petrochemical, petroleum exploration, petroleum transportation, machinery manufacturing and other industries, a large amount of oily wastewater will inevitably be produced. If these oily wastewater is directly discharged, it will not only waste resources, but also cause serious pollution to the environment. In addition, if the oil contains free water, it will affect the quality of the oil and cause corrosion to mechanical equipment. [0003] At present, oil-water separators with complex equipment and high energy consumption are widely used in the field of oil-water separation technology. On this basis, the recently emerging micro / nano oil-water separation material technology is an environmentally friendly and economical purifi...

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Problems solved by technology

[0004] The Chinese invention patent application with the publication number CN102225273A discloses a method for preparing a superhydrophobic and superoleophilic paper-based separation material. The paper-based separation material is obtained by immersing the filter paper in a silane-modified nanoparticle solution and drying it naturally. This material can resist acid and organic solvent, and can remove the oil floating on the water surface simultaneously, carry out oil-water separation, repeat many times; However, the paper-based separation material prepared by this method is not resistant to various acids (such as concentrated sulfuric acid) and alkaline solutions, Therefore, it cannot meet the various application requirements of the industry.

[0005] The Chinese invention patent with the publication number CN102029079A discloses an oil-water separation membrane with underwater superoleophobic properties and its preparation method and application. Oleophobic properties, and the contact angle of the material to oil droplets under water is greater than 150°, and has the characteristics of low adhesion to oil droplets; however, the material is also not resistant to various acids and alkaline solutions

[0006] Because in the actual oil-water separation process, the oil-water system is usually more complicated, and often contains corrosive strong acid, strong alkali or salt solutions, therefore, there is an urgent need for an oil-water separation membrane resistant to acid, alkali, or salt systems, but until now So far, no oil-water separation omentum with resistance to acid, alkali, or salt system has been reported.

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