Triphenylphosphine production continues to rise, and my country’s high-end supply capacity needs to be improved

Triphenylphosphine, also known as triphenylphosphine, phosphine triphenyl, triphenyl phenyl ester, has a chemical formula of C18H15P and is an organic compound. Triphenylphosphine appears as white to light yellow crystalline powder, easily soluble in benzene, chloroform and ethanol, slightly soluble in ester solvents, but almost insoluble in water. Triphenylphosphine is a triphenyl substitute of phosphine and has nucleophilicity and reducing properties. It is widely used in petrochemical, fine chemical, textile, pharmaceutical and other fields.

The synthesis method of triphenylphosphine includes one-step reaction synthesis method and step-by-step reaction synthesis method. The one-step reaction synthesis method requires mixing metallic sodium, phosphorus trichloride, and chlorobenzene under high temperature conditions, then adding a catalyst, and preparing triphenylphosphine through a synthesis reaction. This method has the advantages of simple operation, short production cycle, and full utilization of raw materials. and other advantages; the step-by-step reaction synthesis method refers to reacting metallic sodium and chlorobenzene under low temperature conditions to generate sodium phenyl, and then adding phosphorus trichloride to prepare triphenylphosphine. This method is complex to operate and takes a long reaction time. Not suitable for large-scale production.

According to the “2022 Global and China Triphenylphosphine Industry In-Depth Research Report released by the Industrial Research Center, metal sodium, tris Phosphorus chloride and chlorobenzene are the main raw materials of triphenylphosphine. In recent years, driven by market demand, my country’s sodium metal production capacity has continued to expand. China Salt Chemical Industry is my country’s leading sodium metal company, with an annual production capacity of 65,000 tons of sodium metal, ranking first in the world. Benefiting from the sufficient supply of raw materials, my country’s triphenylphosphine production continues to increase and will exceed 10,000 tons in 2021. At present, my country has sufficient supply of medium and low-quality triphenylphosphine, but there is still a huge gap in the high-end market, and high-quality triphenylphosphine is highly dependent on imports.

Triphenylphosphine has a wide range of applications, including petrochemicals, fine chemicals, textiles and medicine. In the fields of petrochemicals and fine chemicals, triphenylphosphine can be used as a basic raw material for catalysts, changing chemical reaction pathways and reaction speeds, thereby improving the production efficiency of chemicals; in the field of textiles, triphenylphosphine can be used as a flame retardant, Used for flame retardant treatment of cellulose cotton cloth; in the medical field, triphenylphosphine is an important intermediate material for cephalosporin antibiotics.

In terms of market competition, my country’s main triphenylphosphine manufacturers include Suzhou Jinyuan Fine Chemicals, Shanghai Jinsai Pharmaceuticals and Chemicals, Xuzhou Jianping Chemicals, etc. Suzhou Jinyuan Fine Chemicals is my country’s leading enterprise of triphenylphosphine, with production capacity accounting for nearly 40.0% of the country’s total.

Industry analysts said that triphenylphosphine, as a basic raw material in chemical industry, has a wide range of applications. As market demand is gradually released, the industry in the future The development trend will continue to improve. At present, my country’s triphenylphosphine industry as a whole shows that the production capacity of low-end products is sufficient, and the supply of high-end products exceeds demand. Driven by the technological innovation of leading companies, my country’s high-end product production capacity will continue to expand, which will provide impetus to the development of the triphenylphosphine industry.