| 摘要 |
PROBLEM TO BE SOLVED: To provide highly reactive hydrated lime having a low COD value, and a large BET specific surface area and pore volume.SOLUTION: Hydrated lime is provided which is obtained by hydrating caustic lime with hydration water. The hydrated lime is produced by adding in hydration one or more kinds of sodium compound selected from water glass, sodium hydroxide, sodium carbonate, sodium fluoride, and sodium silicofluoride. The hydrated lime has a COD value of 30 mg or less measured according to JIS K0102,17, a BET specific surface area of 25 m/g or more, and/or a pore volume of 0.15 cm/g or more. The water glass is especially suitable as the sodium compound. The water glass of 0.5-1.5 wt.% is preferably added to the caustic lime. |
