06
2023-06
There are many variables that could affect the lime hydration process, below are the major factors. Hydration temperature: The temperature of water and quicklime will affect the hydration reaction speed. Generally, the hydration speed increases with the increase of the reaction temperature. The relationship is as follows: K(T) =K(0)×1.035T K(T): the reaction speed when the temperature is T; K(0): the reaction speed when the temperature is T0; T: T－T0 Chemical composition of quicklime High-purity quicklime accelerates the hydration reaction. The higher the purity of the quicklime, the lower the possibility that the pores of the quicklime will be blocked, and the chance that the surface of the quicklime will be coated with impurities (such as quartz, alumina, iron powder, etc.) that are dissolved during calcination will also reduce the chance that these impurities will hinder the contact between water and the quicklime . In addition, the high magnesium oxide content present in the quicklime powder will also have a negative impact on the reaction, because the higher magnesium content tends to cause over-burning of the lime. Activity of quicklime The activity of quicklime depends on the size of the quicklime and magnesium oxide crystal particles, the specific...
