| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a treatment method whereby sulfur content in sulfur-containing slag can be effectively reduced. <P>SOLUTION: The treatment method comprises step A of soaking the sulfur-containing slag in an aqueous solution and adjusting pH of the aqueous solution to 4-10, thereby extracting a sulfur component contained in the slag into the aqueous solution. Preferably, in addition to step A, the treatment method further comprises step B of recovering the sulfur component extracted into the aqueous solution and step C of recovering Ca component extracted into the aqueous solution. The treatment method enables efficient extraction of the sulfur component contained in the slag into the aqueous solution, thereby effectively reducing the sulfur content in the sulfur-containing slag. <P>COPYRIGHT: (C)2011,JPO&INPIT |
