| 摘要 |
PURPOSE:To enhance the adsorbing capacity of an acidic malodorous gaseous component, by mixing specific granulated slag with a composition containing an iron (II) compound as a main component and having an org. acid component bonded to solid iron compound to adjust water content of the resulting mixture to 10wt% or more. CONSTITUTION:Fine powdery granulated slag is treated in an alkali solution having concn. of at least 0.5N for at least 30min and the treated granulated slag is separated by filtering, washed and dried to obtain granulated slag lowered in specific gravity, increased in a specific area and improved in surface characteristics. This granulated slag is neutralized with an org. acid to be mixed with a composition containing an iron (II) compound as a main component and having the org. acid component bonded to said iron compound to obtain a deodorizing base material with water content of 10wt% or more. The pref. mixing ratio of the iron (II) composition to granulated slag is 5-60wt%. |
