Lime nitrogen (calcium cyanamide) is an important production material for pollution-free agricultural products and has good market development prospects.

Calcium cyanamide, also known as calcium cyanamide, refers to a mixture composed of calcium cyanamide (CaCN2), calcium oxide (CaO) and other insoluble impurities. It appears as a dark gray/black gray powder or granular form. It has the smell of calcium carbide or ammonia, and will be hydrolyzed into cyanamide and calcium hydroxide when exposed to water, which is insoluble in alcohol.

Lime nitrogen is mainly produced by the sedimentation furnace method, which refers to the process of using calcium carbide (carbide) and nitrogen as raw materials to react in a high-temperature nitriding furnace to generate lime nitrogen. Calcium carbide and nitrogen are the raw materials for the production of lime nitrogen. In 2022, the domestic calcium carbide production capacity has exceeded 35 million tons, and the supply is relatively sufficient. The settling furnace and the rotary furnace are the key equipment for the production of lime nitrogen. At present, there are Henan Sante Furnace Technology, Jiangsu Puchuang Thermal Technology, Xianyang Hongfeng Kiln, Luoyang Juxing Kiln and other companies are deployed in this field, and the industry has a good foundation for development.

According to the “China Lime Nitrogen (Calcium Cyanamide) Industry Market Monitoring and Future Development Prospects Research Report 2023-2027” released by the Industrial Research Center It shows that lime nitrogen is a basic chemical raw material and is widely used in agriculture and chemical industry. In the chemical industry, lime nitrogen is a raw material for the production of dicyandiamide, melamine, cyanide melt, sodium cyanide, carbendazim, and thiourea; in the agricultural field, lime nitrogen is a raw material for the production of nitrogen fertilizers, herbicides, fungicides, and insecticides. of raw materials.

Among them, agriculture is the main application field of lime nitrogen. Nitrogen fertilizers prepared by using lime nitrogen can increase crop production, improve soil acidity, reduce underground insect pests, and reduce pollution of groundwater. The prepared pesticides can effectively prevent and control bacterial wilt and vines in vegetables. Blight and other hazards. As early as the 1960s, lime nitrogen has been widely used in my country’s agricultural field. After recent years of development, the superior properties of lime nitrogen have been continuously developed, and now it has become an important production material for pollution-free agricultural products, and the market has regained new opportunities. .

There are many lime nitrogen production enterprises in my country. The main enterprises include Inner Mongolia Guohong Lime Nitrogen Agricultural Science, Gulang Xinmiao Fine Chemicals, Ningxia Baoma Chemical Group, Ningxia Xinwei Fine Chemicals, Ningxia Blue White Black Cycle Technology, and Yongdeng Rongkai Fine Chemicals. , Pengsheng Chemical, Huayue New Material Technology, Xinyuan Cyanamide Chemical, Jingyuan Xingze Chemical, etc. At present, my country has become the world’s main producer and exporter of lime nitrogen. In 2022, domestic lime nitrogen production will exceed 37 million tons, a year-on-year increase of 3.6%.

Industry analysts said that due to technical limitations, my country’s lime nitrogen production process is relatively polluting to the environment. Large, under the current background of the continuous advancement of domestic dual-carbon goals and the continuous strengthening of environmental protection supervision, the environmental protection pressure of local lime nitrogen production companies has increased. Based on this, in the future, local lime nitrogen companies will need to continue to optimize production processes and actively seek and develop green and environmentally friendly process technologies. The industry still has huge room for growth.