Lime: lime quality requirements. The so-called active, refers to the ability to respond lime and water. Activity on behalf of the ability of lime in the molten steel with other substances (impurities) reactions. Because, to be measured directly in the slag lime process and reaction speed of the molten steel is very difficult. At the same time, high-quality lime powder, it can be used to judge the quality of calcined lime and guidance through the level of detection of the activity of production. Thus, lime powder quotes, it generated a calcined lime products for active detection requirements. Quicklime lumps or white powder, mainly composed of calcium oxide, can produce heat and calcium hydroxide plus water, lime powder, commonly known as hydrated lime, quicklime powder factory, was strongly alkaline, hygroscopic very strong. Quicklime (calcium oxide) does not have direct bactericidal capacity. Generally, we buy lime should be lime, and lime is not directly sterilized, only add water into the lime that has the sterilization effect.