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Views: 0 Author: Site Editor Publish Time: 2025-10-24 Origin: Site
The foundation of calcium hydroxide production lies in high-quality raw materials. lumpy quicklime (calcium oxide, CaO) is selected as the main raw material, which must meet the following standards:
Purity Requirement: The content of CaO in quicklime shall be ≥90%, and the total content of impurities (such as SiO₂, Fe₂O₃, MgO) shall be ≤5%. This is to avoid the formation of useless by-products (such as calcium silicate, magnesium hydroxide) in subsequent reactions, which may affect the purity of the final product.
Particle Size Control: The particle size of lumpy quicklime needs to be crushed to 20-50mm. This facilitates full contact and reaction with water in the subsequent process and reduces undigested residues.
Raw Material Testing: Each batch of quicklime must undergo composition testing via X-ray Fluorescence Spectroscopy (XRF) before entering the factory. This ensures it meets the production baseline and avoids the risk of excessive impurities from the source.
In the chemical industry, our calcium hydroxide demonstrates strong application value. In wastewater treatment, it can efficiently adjust the pH value of wastewater and neutralize acidic pollutants, helping enterprises achieve compliance with environmental discharge standards and reduce pollution treatment costs. In chemical synthesis, as a key raw material, it can be used to produce products such as calcium hypochlorite disinfectants; meanwhile, it also serves as a high-quality base material for the production of calcium salts like calcium carbonate and calcium hydrogen phosphate, enhancing the quality stability of downstream products. In flue gas desulfurization projects, it can quickly absorb sulfur dioxide in industrial waste gas, effectively reducing acid rain pollution and assisting enterprises in practicing the concept of green production. Additionally, in pulp bleaching and deinking processes in the paper industry, it can significantly improve the whiteness of paper, providing strong support for paper enterprises to optimize production processes and enhance product competitiveness.
