Global challenges Alumina production technology innovation has been cracked

Recently, the innovative alumina production technology developed by the special metallurgical innovation team led by Professor Zhang Ting'an of Northeastern University solved the worldwide problem that the red mud cannot be economically viable. Through the identification of the China Nonferrous Metals Industry Association, the two invention technologies have reached the international lead.

How to effectively use low-grade bauxite in China has always been a technical bottleneck problem in China's alumina industry. 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, alumina production can achieve an additional annual economic benefit of 500 billion yuan. If the existing Bayer process red mud is used in this method, it can produce an economic benefit of nearly 100 billion yuan, which is significant. 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.