| 摘要 |
PURPOSE:To enhance the deodorizing capacity of the title agent in the living environment in offices, households, etc., by preparing the air cleaning agent from a mixture of the activated carbon deposited with aniline and the activated carbon deposited with malic acid and an iron salt. CONSTITUTION:Activated carbon is dipped at ordinary temp. in an aq. aniline soln. for 2-3hr, filtered, and the dried, or an aniline-contg. gas is passed through an activated carbon-packed tower to adsorb the aniline on the carbon. The activated carbon deposited with aniline is thus obtained. Meanwhile, activated carbon is dipped in a liq. mixture of malic acid and an iron salt to sufficiently adsorb the materials in the pores, then filtered, and dried, or the soln. is sprinkled over the carbon to sufficiently impregnate the carbon with the soln. The activated carbon deposited with malic acid and an iron salt is thus obtained. Both kinds of the obtained activated carbon are mixed to prepare the adsorbent. |
