The production process of sodium thiocyanate is continuously upgraded and the industry is developing well

Sodium thiocyanate is an inorganic compound with the chemical formula NaSCN. It appears as white crystal or powder and is easily soluble in water, ethanol, acetone and other solvents. The aqueous solution is neutral. Sodium thiocyanate is an important chemical raw material that can be used as metal detectors, cement grinding aids, diffusing agents, dyes, solvents, analytical reagents, pickling corrosion inhibitors, preservatives and other products used in medicine, pesticides, printing and dyeing , chemistry, textile, electroplating, rubber, building materials and other fields, the application space is relatively broad.

Currently, there are three main methods for preparing sodium thiocyanate: chemical synthesis, polyammonium salt purification, and desulfurization and decyanization waste liquid purification. The chemical synthesis method refers to the method of preparing sodium thiocyanate using sodium cyanide and sulfur as raw materials through chemical reaction, evaporation, centrifugation, drying and other links. It has the advantages of mature technology and the disadvantage of high production cost; the polyammonium salt purification method is The method of using thiocyanate-containing solids converted from desulfurization and decyanation wastewater as raw materials to obtain sodium thiocyanate through recovery, separation, purification and other processes has the advantages of sufficient raw materials but the disadvantages of complex processes and high costs.

The desulfurization and decyanization waste liquid purification method refers to a method of extracting sodium thiocyanate through decolorization, filtration, oxidation, concentration, crystallization, membrane separation and other processes using the desulfurization and decyanization waste liquid produced from coke oven gas as raw material. It has low production cost. , sufficient raw materials and other advantages. At present, the domestic industrial production of sodium thiocyanate is mainly based on the polyammonium salt purification method. The synthesis method has gradually withdrawn from the market due to its high cost. The desulfurization and decyanization wastewater purification method is cheaper than the polyammonium salt purification method and is expected to become a Market mainstream. At present, my country’s sodium thiocyanate production technology is constantly being upgraded, the process of product cost reduction and efficiency improvement is accelerating, and the industry is developing well.

Sodium thiocyanate, as an important chemical raw material, is currently accelerating in the context of the continuous development and expansion of its application fields and the continuous upgrading of production processes. The industry has now entered a stage of rapid development. According to the“China Sodium Thiocyanate Industry Market Monitoring and Future Development Prospects Research Report 2023-2027” released by the Industrial Research Center It shows that my country’s sodium thiocyanate market size will reach 450 million yuan in 2022, a year-on-year increase of 8.2%. my country has become one of the world’s major consumers of sodium thiocyanate.

Industry analysts said that sodium thiocyanate is an important chemical raw material with broad application prospects in many fields. The production process is constantly being upgraded, and the desulfurization and decyanization wastewater purification method is expected to become the mainstream method for domestic industrial production of sodium thiocyanate. In the future, the development space of the domestic sodium thiocyanate industry will continue to expand under the continued favorable factors of process upgrades and increased demand. At this stage, the domestic companies in the sodium thiocyanate market mainly include AkzoNobel, Liaoyuan Environmental Protection, Yinzhidu Environmental Protection Technology, Chengxin Group, Tianzhishui Chemical, Shuangtian Chemical, Xintian Environmental Protection Technology, etc.