Abstract
Slaked lime with ultrafine particles could be efficiently adsorbing hydrogen chloride gas, which was discharged from the garbage incineration plants. This study was made to investigate about the synthetic condition and formation mechanism of slaked lime with ultrafine particles formed by adding saccharides solution to quick lime. Slaked lime with ultrafine particles was synthesized by adding saccharides solution to quick lime with particle size of 300-500 μm. The sample was characterized by means of X-ray diffraction, measurements of specific surface area and particle size distribution.
The hydration rate of quick lime was controlled by adding saccharides into water. The specific surface area of slaked lime formed under the condition controlled most hydration was attained to high value. For example, the specific surface area of slaked lime which was formed under synthetic condition of sucrose /CaO mass ratio 0.03 was approximately 43 m2. g-1. The slaked lime with ultrafine particles was formed aggregate with diameter of 2.6 μm. The aggregate had pore size distribution with 2-4 nm and range of 30-100 nm.
Also, the formation mechanism of slaked lime with ultrafine particles by adding saccharides solution was discussed.
