Recently, the China Non-ferrous Metals Industry Association hosted the Scientific and Technological Achievement Evaluation Project of the "Micro-powder Aluminium Hydroxide Production Technology for Electronic Materials" project completed by China Aluminum Corporation Shandong Branch in Zibo City, Shandong Province. The appraisal committee heard the project's research report, reviewed relevant appraisal materials, visited the site, and after questioning and discussion, the experts believed that the project aimed at existing products with high oil absorption rate, low water decomposition temperature, large particles, and black spots. , Conducted research on product size distribution, insulation properties, thermal stability, etc., optimized the production process, and formed a series of products. The project has the following characteristics and innovations: (1) The use of airflow classification technology to remove coarse particles in micro-powder aluminum hydroxide, improved product particle size distribution, and achieved the requirements of electronic materials for micro-powder aluminum hydroxide; (2) developed independent The iron removal technology of intellectual property rights improves the insulation performance of the product; (3) Optimize the technological parameters to increase the water loss temperature of flame retardant grade aluminum hydroxide (filter cake and fine powder) from 195°C to 205°C to 210°C; (4 ) Through the research on synthetic technology and deep processing technology, three varieties of H-WF-1, H-WF-2 and H-WF-3 and their modified products have been formed, and their quality has reached the advanced level of similar foreign products.
Experts believe that the products produced by this process are characterized by high purity, good thermal stability, reasonable particle size distribution, specific surface area, low oil absorption, low electrical conductivity, etc. The production process is easy to control, the cost is low, and the overall technology has reached the international advanced level.
The product has a good market prospect and has good economic and social benefits. At the same time, experts recommend further stabilizing the product size distribution and physical and chemical indicators, and conducting research on new varieties to meet the emerging new market demands.
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