| 摘要 |
<P>PROBLEM TO BE SOLVED: To remove unburned carbons contained in fly ash stably and economically. <P>SOLUTION: In a hybrid mixer 2, the fly ash, water, and a collector are mixed, and at the same time, stirred, by which a shearing force is given. Thus, a slurry where a surface modification of the unburned carbon is carried out is produced in a short time. After a foaming agent is added to the slurry, the unburned carbon is subjected to a flotation separation at a flotation machine 11. <P>COPYRIGHT: (C)2007,JPO&INPIT |
