2 results about "Cyanogen chloride" patented technology

The application provides a kind of alkali copper combined impregnated activated carbon for protecting CNCl / HCN and organic vapor and a preparation method, first, peach shell activated carbon with certain pore structure is selected, then impregnated in two steps, first, sodium alkali is impregnated into the inside of activated carbon carrier channel, then active component copper is impregnated into the inside of activated carbon carrier channel, wherein the oxide generated by thermal decomposition of Cu, Mo bimetallic impregnation solution has strong adsorption capacity for cyanide, the presence of alkali can promote the hydrolysis reaction of cyanogen chloride, and the hydrolysis product of adsorbed cyanogen chloride is hydrochloric acid. The unique pore structure of activated carbon and alkaline pretreatment are beneficial to the adsorption of DMMP organic vapor. The application first uses vacuum ultrasonic impregnation and water vapor activation to load the precursors of alkali and copper into the inside of macropore of activated carbon in turns, which not only makes the surface of impregnated carbon alkaline, but also makes the active component fully absorbed and dispersed in the channel of activated carbon.

The application discloses a preparation method of an adsorbing material for comprehensive protection of ethylene oxide and cyanogen chloride, and belongs to the technical field of adsorbents. The method uses activated carbon as a carrier, impregnates a basic metal complex solution for multiple times, and loads metal oxide components such as potassium, copper, zinc and silver in the pores of the activated carbon to obtain impregnated activated carbon with adsorption and catalysis functions. The impregnated activated carbon is mixed and packed with porous zeolite molecular sieves rich in acid sites to form a composite adsorbing material. The material can efficiently hydrolyze EO and CNCl which are difficult to be treated by conventional adsorbents, and has good application value in the fields of chemical protection and air purification.