| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a treatment method of fine powder containing a calcium component and a lead component capable of recovering a lead component with a high recovery rate by separating the calcium component and lead component from the fine powder containing the calcium component and the lead component by means of a simple operation. <P>SOLUTION: The treatment method of fine powder containing the calcium component and lead component comprises a step (A) of mixing the fine powder containing the calcium component and lead component, water, a sulfurizing agent and sulfuric acid to obtain slurry containing calcium sulfate and lead sulfide as a solid content, a step (B) of adding a part of xanthate as a hydrophobization agent to the slurry obtained in the step (A) to conduct the hydrophobization of the lead sulfide and a step (C) of introducing the slurry obtained in the (B) step into a floatation means, then adding a residual part of xanthate as a hydrophobization agent to the slurry and conducting the floatation treatment to obtain a float containing the lead sulfide and a sedimentation ore containing calcium sulfate. <P>COPYRIGHT: (C)2010,JPO&INPIT |
