Which industries use a large amount of quicklime
Lime, as an important industrial raw material, is widely used in various fields. Among them, the following industries have a particularly high demand for quicklime:
1、 Steel industry
The steel industry is the largest consumer area of quicklime, mainly used as a slag forming agent in the steelmaking process. Lime reacts with impurities in molten iron to generate slag, thereby removing harmful elements such as sulfur and phosphorus and improving the quality of molten steel. According to statistics, about 100-150 kilograms of quicklime are consumed for every ton of steel produced.
2、 Chemical industry
The chemical industry is the second largest consumer area of quicklime, mainly used for the production of chemical products such as calcium carbide, soda ash, bleaching powder, etc.
Calcium carbide: Lime reacts with coke at high temperatures to produce calcium carbide, which is an important raw material for the production of chemical products such as acetylene and polyvinyl chloride.
Soda ash: Lime reacts with saltwater to produce soda ash, which is an important raw material for producing products such as glass, soap, and paper.
Bleach powder: Lime reacts with chlorine gas to produce bleach powder, which is a commonly used disinfectant and bleach.
3、 Environmental Protection Industry
In recent years, with the increasingly strict environmental requirements, the application of quicklime in the field of environmental protection has become more and more widespread.
Flue gas desulfurization: Lime reacts with sulfur dioxide in flue gas to produce calcium sulfate, thereby achieving the purpose of desulfurization.
Wastewater treatment: Lime can neutralize acidic wastewater, remove heavy metal ions from water, and regulate water quality.
Garbage incineration: Lime can absorb the acidic gases generated during the garbage incineration process, reducing environmental pollution.
4、 Construction industry
Quicklime is mainly used in the construction industry to produce building materials such as lime mortar and lime milk.
Lime mortar: Lime mortar is made by mixing quicklime with sand and water, and is used for masonry walls, plastering, etc.
Lime milk: Lime milk is made by mixing quicklime with water, and is used for painting walls, disinfecting and sterilizing.
5、 Other industries
In addition, quicklime is also used in industries such as agriculture, medicine, and food, for example:
Agriculture: Used to improve acidic soil, provide calcium elements, and promote crop growth.
Medicine: Used for manufacturing calcium tablets, disinfectants, etc.
Food: Used for desiccants, preservatives, etc.
As an important industrial raw material, quicklime has a wide range of applications. With the development of the economy and the advancement of technology, the demand for quicklime will continue to grow.
