my country is the world’s largest producer of oxalic acid and the industry has good development prospects.

Oxalic acid, also known as oxalic acid, is the simplest dibasic acid with the chemical formula H₂C₂O₄. Its appearance is colorless monoclinic flakes or prism crystals or white powder. It is soluble in water, but insoluble in organic solvents such as ether. Oxalic acid is chemically unstable and has acidity, redox and toxicity, and can also undergo esterification reactions. Oxalic acid is also a metabolite of organisms, which can maintain the pH value in plants and help protect plants from toxic ions. It is found in high levels in plants such as amaranth, purslane, taro, sweet potato and rhubarb.

Oxalic acid production processes include sodium formate method, carbohydrate oxidation method, oxo synthesis method, ethylene glycol oxidation method, propylene oxidation method, and carbon monoxide gas phase coupling method. Chinese companies mostly use carbohydrate oxidation method to produce oxalic acid. The carbohydrate oxidation method refers to using carbohydrates as raw materials, hydrolyzing them under the action of sulfuric acid to generate glucose, oxidizing them with nitric acid, and cooling the oxidation product to obtain oxalic acid. At present, the carbon monoxide gas phase coupling method has more development prospects. This method reacts carbon monoxide and ethyl nitrite in an oxidative coupling reactor to generate diethyl oxalate, and then generates oxalic acid through a hydrolysis reaction.

According to the “China Oxalic Acid Industry Development Trend and Development Prospects Forecast Report 2022-2027 released by the Industrial Research Center, oxalic acid is widely used In the fields of chemical industry, medicine, textile printing and dyeing, metallurgy and electrical machinery industry, it is commonly used as complexing agent, masking agent, precipitating agent and reducing agent raw material. In the chemical industry, oxalic acid can be used to produce chemical products such as hydroquinone, pentaerythritol, various oxalates, oxalate esters, salt-based greens, polyvinyl chloride, and oil refining. Oxalic acid accounts for 35.1% of the demand in the pharmaceutical field, and is mostly used in the manufacture of chlortetracycline, oxytetracycline, tetracycline, streptomycin, sodium iodopyronate and other drugs. The continuous expansion of application areas will promote the growth of demand for oxalic acid.

my country’s oxalic acid industry is highly concentrated, with leading companies occupying a dominant position in the market. With the upgrading of the industrial structure, small and medium-sized enterprises with backward production capacity are gradually eliminated by the market. At present, enterprises with high oxalic acid production capacity in my country include Fengyuan Co., Ltd., Hualu Hengsheng, Danhua Technology and CNPC Engineering. Fengyuan Co., Ltd. focuses on industrial oxalic acid, refined oxalic acid, oxalic acid derivatives and other products. Its annual oxalic acid production capacity reaches nearly 100,000 tons, occupying nearly 25.0% of my country’s oxalic acid market.

Industry analysts said that as a chemical material, oxalic acid is widely used in various fields. Among them, the pharmaceutical industry has the largest demand for oxalic acid. The oxalic acid market has vast space. my country is the world’s largest producer of oxalic acid. As oxalic acid production technology continues to make breakthroughs and innovations, production technologies with high energy consumption and low efficiency will be eliminated. The carbon monoxide gas phase coupling method with the advantages of energy saving and environmental protection will gain development prospects, which will promote the oxalic acid industry. growing up very fast.