The invention relates to
activated carbon. The
activated carbon is prepared from the following raw materials in parts by
mass: 70-80 parts of wood
charcoal powder, 1-6 parts of a normal-temperature binder, 15-20 parts of a high-temperature binder, 3-5 parts of a
tackifier, 0.5-1 part of an
extrusion aid, 0.1-0.5 part of a
coupling agent and water accounting for 35-45% of the total
mass of the components. The invention also relates to a preparation method of the
activated carbon. The preparation method comprises the following steps of: pulverizing, screening, proportioning, mixing, kneading, aging, carrying out
extrusion molding,
drying, carbonizing and activating at the same time. High-temperature
asphalt,
sodium humate and sulfonated phenolic resin are used for replacing dangerous chemical
coal tar to serve as adhesives, VOCs gas emission in the preparation process is reduced, environmental
pollution is reduced, the adhesion effect of the adhesives is improved through a
tackifier anda
coupling agent, the abrasion resistance and the adsorption capacity of the activated carbon are improved, the abrasion resistance of the activated carbon reaches 98%, the
iodine value of the activated carbon can reach 900 mg / g, the ash content of theactivated carbon is smaller than 10%. The method can be used for some application scenes with high requirements for the abrasion resistance and theadsorption capacity of the activated carbon, such as desulfurization and
denitrification catalysts and
gold extraction.