Asphaltic resin composite spherical activated carbon with expanded graphite enhanced oil absorption property and preparation method therefor

Abstract

The invention discloses asphaltic resin composite spherical activated carbon with an expanded graphite enhanced oil absorption property. The asphaltic resin composite spherical activated carbon is characterized by being prepared from the following raw materials in parts by weight: 40-43 parts of tert-butyl methacrylate, 40-42 parts of ortho-methylstyrene, 25-28 parts of ethanol, 2-3 parts of tert-butyl hydroperoxide, 1.5-2.5 parts of bisphenol A epoxy dimethyl acrylic acid, 2-3 parts of gelatin, 0.5-0.8 part of OP-10, a proper volume of distilled water, a proper volume of acetone, 25-28 parts of sulfonated asphalt powder, 4-5 parts of expanded graphite, 2-3 parts of clay powder, 3-4 parts of corncob powder, 2-3 parts of 1% sodium hydroxide solution, 3-4 parts of citric acid and 2-3 parts of emulsified paraffin. The asphaltic resin composite spherical activated carbon contains ingredients such as the modified expanded graphite, the clay powder, the corncob powder and the like, and the modified expanded graphite and the like exist in three-dimensional fiber-net-shaped molecular structures, so that a large number of oil molecules can be adsorbed, meanwhile, the oil absorption speed is high, the oil-water selectivity is high, and the oil retention property is good.

Description

technical field [0001] The invention relates to the field of materials, in particular to a pitch resin composite-based spherical activated carbon with expanded graphite enhanced oil absorption performance and a preparation method thereof. Background technique [0002] Spherical activated carbon has been widely used in related fields such as medicine, environmental protection and catalyst carrier because of its good sphericity, high packing density, less particle shedding and fast adsorption and desorption speed. Spherical activated carbon is mainly divided into three categories according to different raw materials: coal-based spherical activated carbon, polymer resin-based spherical activated carbon and pitch-based spherical activated carbon. Among them, coal-based spherical activated carbon has the advantages of cheap raw materials and wide sources, but coal-based activated carbon has high ash content, many impurities, and low mechanical strength, which limits its applicati...

AI Technical Summary

Problems solved by technology

Among them, coal-based spherical activated carbon has the advantages of cheap raw materials and wide sources, but coal-based activated carbon has high ash content, many impurities, and low mechanical strength, which limits its application and development.