| 摘要 |
PURPOSE: A method for manufacturing natural calcium liquid is provided to obtain calcium liquid with alkaline concentration of pH 6-10 by adding water into calcium powder which is obtained by pyrolyzing shells based on heat of a high temperature. CONSTITUTION: A method for manufacturing natural calcium liquid comprises the steps of: putting pulverized and dried shells into a jar type heating furnace (1); covering the heating furnace with a cover (2) having air holes (2a); obtaining white calcium powder by pyrolyzing the shells at 1100-1300°C; removing impurities from the white calcium powder by filtering the white calcium powder with a fine net; and obtaining calcium liquid by mixing 0.04-0.08 weight% of the calcium powder with water based on the amount of water. The alkaline concentration of the calcium liquid is pH 6-10. |
