| 摘要 |
<P>PROBLEM TO BE SOLVED: To produce collapsible granular magnesia manure without using water. Ž<P>SOLUTION: A roller type compression molding machine is used. Two rollers are rotated while applying pressure thereto, the raw material of magnesia manure is fed to a space between the two rollers, and is subjected to compression molding, so as to be granulated. Regarding primary working, using a granulation machine, particle size regulation is performed, and thereafter, the above process is performed. Granular calcined magnesia as the raw material is mixed with bentonite or carboxymethyl cellulose of ≤10 wt.% as a disintegrator. Further, as a granulating agent, a lignin sulfonate of ≤20 wt.% is mixed therein. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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