| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable the utilization of fluorine-containing slag, etc., as civil engineering materials, etc., by effectively suppressing the elution of components, such as fluorine, from the slag. SOLUTION: The slag produced in an iron and steel production process is subjected to a carbonation treatment, by which the slag surface is coated with the CaCO3 and/or MgCO3 formed by the carbonation reaction of the Ca component and/or Mg-component included in the slag. The slag particles are otherwise consolidated and agglomerated with the CaCO3 and/or MgCO3 formed by the carbonation reaction as a binder and the surface of this slag agglomerate is coated with the CaCO3 and/or MgCO3 formed by the carbonation reaction, by which the elution of the components, such as fluorine, from the slag particles or the slag agglomerate is suppressed.</p> |
