In recent years, the domestic beverage industry market demand is weak, resulting in the overall domestic market demand for citric acid has not been a breakthrough growth.In recent years, detergent has also become an important downstream demand market for citric acid as a daily consumer product with large market demand.Application of citric acid in the detergent industry more extensive, mainly the use of citric acid itself performance comparison is good, the application of chemical cleaning agent mainly affect the surface of the porcelain, alkaline solution and complex materials to China stronger corrosion, and citric acid after fusion and detergents, can improve the ability of clean.At present, many countries have promulgated the policy of prohibiting phosphorus in detergents. Italy, Switzerland, Japan and the United States have successively required their own countries to use detergents containing very low content of phosphate or phosphate-free detergents. Germany and Canada have also restricted the use of phosphate detergents.Citric acid and its derivatives, as environmentally friendly products, will replace sodium tripolyphosphate as the main raw materials of detergents in the future.At present, the production of detergents in China is basically stable at more than 10 million tons.