Air purifying agent and a process for producing same
AssigneeNippon Chemical Industrial Co., Ltd.
InventorsShozo Ichimura, Seikichi Tabei, Michinori Hashimoto
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Abstract
An air purifying agent comprising a carbonaceous carrier and activated manganese dioxide and iodate supported thereon. According to the present invention, there can be provided an air purifying agent which is safe to handle and exhibits sufficient effect for removing contaminated gases.
Claims16
(Amended) An air purifying agent comprising activated manganese dioxide and iodate supported on a carbon carrier, wherein the total amount of supported chemical components is within the range of 0.1 to 20% by weight relative to the total weight of the agent, and wherein the weight ratio of activated manganese dioxide calculated as MnO.sub.2 to iodate is within the range of about 1:0.1-9.
A process for producing an air purifying agent, comprising impregnating a carbon carrier with an aqueous solution of potassium permanganate and iodate, whereby said permanganate is reduced to activated manganese dioxide, and wherein said agent contains water in an amount between 5 and 15 weight percent based on the weight of the agent wherein said water contained in said agent is the amount of water lost by the air purifying agent when dried at 100.degree. C. for one hour.
Dependencies are inferred from the claim text.