Calcium hydroxide is a fine white powder, odorless, slightly bitter, placed in the air easily absorb carbon dioxide and become calcium carbonate. It is made from calcium oxide, i.e. quick lime, digested with water and dried, screened, and air selected (or crushed by extension). Today Xiaobian will give you a detailed description of the use of calcium hydroxide in various fields.

First, the specific application of calcium hydroxide sewage treatment: 1, calcium hydroxide used in wastewater can neutralize the free acid in wastewater. 2. Calcium hydroxide used in wastewater can neutralize acidic salts in wastewater. 3. Calcium hydroxide is used in wastewater, where hydroxide ions in calcium hydroxide can react with metal ions to produce water-insoluble precipitates. 4. Calcium hydroxide used in wastewater can adjust the PH value of wastewater to alkaline, which can better precipitate metal hydroxide.

2. Specific application of calcium hydroxide in agriculture: it is used in agriculture to reduce soil acidity and improve soil structure;

Third, the specific application of calcium hydroxide flue gas desulfurization: it is mainly used to neutralize sulfur dioxide, sulfur trioxide and a small part of fluorine ion chloride ions and other acidic gases, so that the sulfur content of the exhaust gas meets environmental protection standards.

Fourth, the application of calcium hydroxide in the sugar process: in the sugar process, calcium hydroxide is used to neutralize the acid in the syrup, and then carbon dioxide is passed to make the remaining calcium hydroxide become precipitate and filter out so as to reduce the sour taste of sugar.

Five, the application of calcium hydroxide in paint: calcium hydroxide and carbon dioxide in the air reaction to produce calcium carbonate, white and hard can help coagulation.

Six, the application of calcium hydroxide in the metallurgical industry: In order to coating the metal surface in this industry, it is necessary to remove the impurities on the surface of the metal plate (containing metal oxides), so it is necessary to use dilute sulfuric acid to remove. Waste water from the production process is neutralized with calcium hydroxide.

Seven, the application of calcium hydroxide in the leather manufacturing industry: mainly used in the leather manufacturing industry in the combing process.

8, the application of calcium hydroxide in refractory materials: in the production of silicon bricks, calcium hydroxide can be used as an additive to enhance the strength and viscosity of the revolution. Silica brick with SiO4 content of not less than 96% silica as raw materials, adding mineralizing agents (such as iron scale, lime milk) and bonding agents (such as molasses and sulfite pulp waste liquid), after mixing, molding, drying, burning and other processes.

9, the use of calcium hydroxide in food: Because of the strong activity of calcium hydroxide, loose structure, widely used in food additives.

10, the use of calcium hydroxide in medicine: medical shows that the human body calcium deficiency will cause a series of physiological problems, such as: high blood pressure, osteoporosis, stones and other diseases, calcium hydroxide can be used as calcium synthesis and calcium cyclopropanate, calcium lactate main raw materials.

11, calcium hydroxide in organic biosynthesis: used for the synthesis of high-tech biological material HA, feed additive VC phosphate synthesis, etc.