To provide a method of obtaining a quick lime exerting higher reactivity and higroscopicity than already known highly reactive quick lime by a process of manufacturing a quick lime by sintering a slaked lime.
In this method, to satisfy the value of a process function F=(B/30)(T×t/P), wherein B is BET specific surface area of feed slaked lime, T is temperature of sintering, t is sintering time, and P is pressure of the atmosphere, becomes 1-90, sintering is carried out under the reaction condition selected within the range of B is not smaller than 10 m2/g, T is 573-1,073 K, t is 0.5-10 hr, and P is 1-10×102 Pa. Thus, a highly reactive quick lime having a BET specific surface area of not smaller than 30 m2/g, a total pore volume of not less than 1.0×10-4 dm3/g, a weight loss by severe heating of not greater than 10 wt%, and an average particle diameter of not smaller than 5 μm can be obtained.
AKASHI HIDEKO
KAMEYAMA ISAMU
TAKEDA SHUHEI
| JPH07149580A | 1995-06-13 | |||
| JP2001354414A | 2001-12-25 | |||
| JPH09268013A | 1997-10-14 | |||
| JPH01308825A | 1989-12-13 | |||
| JP2000502029A | 2000-02-22 | |||
| JP2005335987A | 2005-12-08 |
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