High-activity calcium oxide, powder produced therefrom, process for producing the powder, and powdery preparation

摘要

High-activity calcium oxide produced by firing eggshells at 900-1,500 DEG C. A powdery preparation comprising high-activity calcium oxide produced by firing eggshells at 900-1,500 DEG C. A discharged animal blood powder produced by reacting discharged animal blood with high-activity calcium oxide produced by firing eggshells at 900-1,500 DEG C, and a process for producing the powder. A discharged animal blood powder produced by reacting discharged animal blood with high-activity calcium oxide produced by firing eggshells at 900-1,500 DEG C and an organic acid or a salt thereof, and a process for producing the powder. A fat or oil powder produced by reacting a liquid fat or oil with high-activity calcium oxide produced by firing eggshells at 900-1,500 DEG C and water or wood vinegar, and a process for producing the powder.