Alumina production technology innovation in Northeastern University solves world problems

How to effectively use low-grade bauxite in China has always been a technical bottleneck problem in China's alumina industry. Recently, the alumina production innovation technology developed by the special metallurgy innovation team led by Professor Zhang Ting'an of Northeastern University was identified by the China Nonferrous Metals Industry Association. The two invention technologies reached the international lead, and the world-wide exploitation of red mud cannot be economically viable. problem.

The special metallurgical innovation team led by Professor Zhang Ting'an of Northeastern University after more than 10 years of painstaking research has fundamentally solved the large-scale, low-cost, harmless, and resource-based utilization of red mud, and its innovative technology is the subversive of alumina production. technology. It has been estimated that if China adopts this technology widely, alumina production can obtain additional economic benefits of 500 billion yuan each year. If the existing Bayer process red mud is completely treated by this method, it can generate economic benefits of nearly 100 billion yuan, which is significant. The social and economic benefits.

At present, two technical inventions have formed 15 serial invention patents and 2 international PCT patents, and have established a pilot test scale of 50,000 tons in the laboratory.