| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for cleaning a lime mud filter by which the clogging of the lime mud filter is cleaned in a short time, while not reducing the productivity and operability so much, and while reducing the loss of energy at a firing kiln, and the cost required for dehydration of the lime mud. <P>SOLUTION: The filter cloth of the lime mud filter clogged at a caustification process in the production of a kraft pulp is cleaned by an aqueous alkali solution of EDTA-4Na. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
