Fig.1

Mechanism diagram of lime digestion reaction"

Table 1

Main compositions and contents of lime samples %"

Fig.2

Schematic diagram of lime digestion"

Table 2

Data on the temperature rise rate and product characteristics of digestive water at different initial temperatures"

Fig.3

Digestion temperature rise and digestion rate of quicklime at different water temperatures of digested water"

Fig.4

Variation of specific surface area and particle size ofcalcium hydroxide products under different initialtemperatures of digested water"

Fig.5

SEM images of the product calcium hydroxide at different initial temperatures of digested water"

Table 3

Data on digestion temperature rise rate and product characteristics under different water ash mass ratios"

Fig.6

Digestion temperature rise curves and digestionrate at different ratios of water to ash"

Fig.7

Variation of specific surface area and particle sizeof calcium hydroxide for different ratios of water to ash"

Fig.8

SEM images of calcium hydroxide productswith different ratios of water to ash"

Table 4

Effect of stirring speed on digestion temperature rise and product characteristics"

Fig.9

Digestion temperature rise curve and digestionrate graph at different stirring speeds"

Fig.10

Variation of specific surface area and particle size of calcium oxide products with different stirring speeds"

Fig.11

SEM images of product calcium hydroxidewith different stirring speeds"

Fig.12

Specific surface area of calcium hydroxide obtained from digestion reactions under different pressures"

Fig.13

SEM images of pressurized（a） and atmospheric（b，c）digestion product calcium hydroxide"