| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for collecting thallium in a cement production facility, which can collect thallium in a combustion gas to be exhausted from the cement production facility, with high purity, and to provide a collecting apparatus therefor. <P>SOLUTION: The method for collecting thallium in the cement production facility includes: collecting dust in the combustion gas exhausted from a cyclone 1d of a suspension preheater 1 with the use of a stabilizer 5, an electrical dust collector 6 and a bag filter 7; washing the dust with water in a washing tank 8 to convert the dust to slurry; introducing the slurry into a filter 9 to separate it into a cake and a filtrate containing thallium; charging the filtrate into a reaction precipitation tank 11 to precipitate thallium oxide; and charging the obtained suspension filtrate into a thallium separator 12 to separate it into a caked sludge containing thallium oxide and a filtrate. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
