Европейская академия естественных наук Hannover E.V.

Zhang Yimin

Zhang Yimin is a well-known expert in the utilization of vanadium resources in China. Faced with the challenges of the strategic demand of international high-end vanadium product and weakness of Chinese advanced technology, he carried out multi-disciplinary process and engineering innovation from the direction of vanadium resource separation manufacturing theory, key technology, metallurgy equipment and industrial application with the support of the national key science and technology plan. He succeeds in building up the green low-carbon whole industrial chain technology and engineering system of vanadium-bearing shale utilization in China, breaking through the bottleneck that the production of high purity vanadium oxide and high end vanadium-based materials from vanadium-bearing shale is impossible, which guarantees the self-reliance of vanadium resource utilization of China.

1. He proposed the high-temperature separation mechanism of vanadium-bearing shale for the first time in the world, solved the cosmopolitan problem of “silicon coverage” hindering vanadium release, established the general technology and equipment system of all types of vanadium-bearing shale in China. The recovery rate of vanadium in the industry has increased from less than 60% to 85%, forming a vanadium industry pattern of equal importance to manufacture vanadium from steel smelting. As result of his contribution, China has reached the capability of large-scale production of high-purity vanadium from vanadium-bearing shale, and has become one of the few major countries in the world to master the core technology of vanadium shale resources utilization.
2. He invented the core method of high-end adapting and connecting of vanadium-bearing shale, set up a complete set of low-carbon and short-process manufacturing technology of vanadium-based materials and carried out industrial application. The vanadium material manufacturing base built in Chinese core production area has achieved a substantial increase in the import substitution rate of high-end vanadium materials from 45% to 80%, which has enhanced its self-independent production capacity, and made China among the forefront of vanadium-based materials manufacturing in the world. He succeeds in building up the “Vanadium Valley of China” and promotes the national intensive development of vanadium resource utilization.
3. He proposed the ultra-limit concept of spiral separation, which broke through the internationally recognized theoretical limit of the distance to diameter ratio(h/d) of traditional equipment. The first key equipment of low-density difference with compound force field in China has been promoted and applied in industrialization. A series of high value-added products have been manufactured such as chlorine-resistant geopolymer for marine engineering and cold-pressed pellets of vanadium-iron tailings, in which the key technical indicators have increased by 20% compared with the world’s leading level. The important engineering support of green and efficient utilization of vanadium-iron tailings has been provided because of his work.

Zhang Yimin has won 3 second prizes of the National Technological Invention Award and the National Science and Technology Progress Award, and 6 first prizes of the provincial and ministerial level awards, ranking first. He has obtained 95 authorized invention patents at home and abroad, published 8 books, 287 papers. He has been selected as one of the world’s Top 2% of Top Scientists by Stanford University in 2022 and 2023, one of China's High-Contribution Scholars in 2022, and one of Elsevier's Highly cited Scholars in China for three times from 2020 to 2022.

He has been working on the front line of scientific research, formed an internationally leading level of R&D team, set up a high-level national scientific research platform, built a base for incubating the scientific and technological achievements of vanadium industry. He actively carries out international cooperation, and makes significant contributions to the state security of strategic mineral resources in China, especially the security of vanadium resources.

 

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