Preparation Technology of Activated Carbon for Civil Defense Engineering

Abstract

The application discloses a preparation process of activated carbon for civil air defense engineering, comprising the following steps: selecting raw materials, preparing the first mixed solution, preparing the second mixed solution, preparing the third mixed solution, impregnating, calcining, preparing the fourth mixed solution, Second impregnation, second calcination. The advantages of the present invention are that the produced activated carbon for civil air defense projects has the advantages of high strength, strong adsorption capacity, large adsorption capacity, less ash content, fast adsorption rate, long protection time, and good protection effect. Protection, etc. have very good effects, especially for benzene, hydrocyanic acid, ethyl chloride, etc. in the exhaust gas, which have excellent adsorption properties that conventional granular carbons do not have; at the same time, the invention of this product also solves the problem of using coal-based columnar The defects of charcoal will further expand the field of activated carbon, further improve the shortcomings of coal-based columnar carbon, and provide better products for waste gas treatment, toxic and harmful gas protection, etc.

Description

Technical field[0001]This application relates to activated carbon, in particular to a preparation process of activated carbon for civil air defense engineering.Background technique[0002]As an excellent filter medium, activated carbon has now been used in many fields, especially in the field of environmental protection. Whether it is purifying water or purifying air, it has become the current protagonist. At present, the main activated carbon preparation process for civil air defense projects on the market, the product quality produced by the main shaped carbon, is not very good, the adsorption capacity is limited, and it does not have a good adsorption capacity for special adsorbents, that is, toxic and harmful gases.[0003]Regarding the preparation process of activated carbon for purifying air in the prior art, in terms of the principle of selection, the water capacity of activated carbon is not taken into consideration. The adsorption capacity of activated carbon for the agent depe...

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Problems solved by technology

[0003] The preparation process of activated carbon for air purification in the prior art does not take into account the water capacity of activated carbon in terms of selection principles. The adsorption amount of activated carbon to pharmaceuticals depends on the size of its water capacity. If the effect is not achieved, unnecessary waste will be caused if the amount of medicament added exceeds the water capacity; in terms of medicament preparation, the types and ingredients of the medicament in the prior art are relatively single, and the protection time is insufficient, and there are fewer groups that can react; There is no secondary impregnation process, the agent is not sufficiently loaded; the added agent is not fully cured, which makes the later protection time insufficient and the effect is not good