The preparation method of aluminum hypophosphite (ALHP) is continuously optimized and there is strong demand in the field of plastic modification.

Aluminum hypophosphite (ALHP), also known as aluminum hypophosphite, is a new type of inorganic phosphorus flame retardant with the chemical formula Al(PO2H2)3. Aluminum hypophosphite appears as a white powdery solid with a special odor. It is slightly soluble in water and insoluble in ether and ethanol. Aluminum hypophosphite has the advantages of strong thermal stability, high flame retardancy, and low volatility. It is widely used in metal surface treatment, ceramic processing, plastic modification, food processing, medicine, fire protection and other fields.

The main preparation methods of aluminum hypophosphite include ion exchange metathesis method and acid-base neutralization reaction method. The ion exchange metathesis method refers to using sodium hypophosphite and aluminum chloride as raw materials to fully react with phosphate and aluminum ions to extract aluminum hypophosphite. This method has the disadvantages of high parameter control requirements and low product yield; acid-base The neutralization reaction method refers to using aluminum hydroxide and hypophosphorous acid as raw materials and reacting to produce finished products. This method easily releases toxic gases during the production process, causing environmental pollution and harming human health.

In recent years, driven by national environmental protection policies, Chinese enterprises and scientific research institutions have continued to increase research on green preparation methods of aluminum hypophosphite and have made many new progresses. The scientific research team of Nanjing Normal University used aluminum sulfate octadecahydrate and sodium hypophosphite monohydrate as raw materials and successfully prepared aluminum hypophosphite under the action of an acidic catalyst. This method has the advantages of good product quality, green environmental protection, and high product yield, and is promising in the future. Realize industrialized production.

According to the “2023-2028 China Aluminum Hypophosphite (ALHP) Industry Market In-depth Research and Development Prospects Forecast Report released by the Industrial Research Center 》 shows that aluminum hypophosphite is a new type of inorganic phosphorus flame retardant and is widely used in metal surface treatment, ceramic processing, plastic modification, food processing, medicine, fire protection and other fields. The field of plastic modification is the largest demand end for aluminum hypophosphite, which can be used to block polyamide (PA), acrylonitrile-butadiene-styrene copolymer (ABS), and polybutylene terephthalate (PBT). Combustion modification. As the development of downstream industries accelerates, my country’s aluminum hypophosphite market space will be further expanded.

The main manufacturers of aluminum hypophosphite in my country include Shandong Taixing New Materials Co., Ltd., Wuhan Jiyesheng Chemical Co., Ltd., Hubei Hongjing Chemical Co., Ltd., Suzhou Lianxiong Chemical Co., Ltd., etc. At present, my country’s aluminum hypophosphite industry has a low concentration level. Local companies mainly produce mid-to-low-end products, and the market lacks leading companies with advantages.

Industry analysts said that aluminum hypophosphite has a wide range of uses and the industry has good development prospects. As market demand is gradually released, the development space of my country’s aluminum hypophosphate industry will further expand in the future. There are many aluminum hypophosphate manufacturers in my country, and the industry concentration is low. In the future, as the level of technological innovation improves, companies with green and environmentally friendly product production capabilities will occupy more shares of the Chinese market.