Accompanied, the efficient and clean use of low-grade complex mineral resources has always been a major national strategic demand. The current process of smelting and smelting is high in energy consumption, heavy in pollution, low in conversion rate, and difficult to separate, which seriously restricts the development of related industries. Chinese Academy of Sciences Process Engineering Studying key strategic resources such as vanadium, titanium, chromium, manganese, etc., as the starting point, and focusing on the major breakthroughs in the 'high-efficiency, clean and comprehensive utilization of characteristic metal deposits' deployed by the Chinese Academy of Sciences, supported by key projects of the Chinese Academy of Science and Technology Service Network (STS) program. Relying on the unique sub molten salt and fluidization platform technologies of the Chinese Academy of Sciences, a series of breakthroughs have been made in the high-efficiency clean conversion of high-chromium vanadium-titanium-magnetite ore, ultra-lean vanadium-titanium-magnetite ore and pyrolusite resources in China. The independent intellectual property rights of vanadium slag sub-smelting salt method vanadium-chromium co-extraction, ultra-lean vanadium titano-magnetite mineralization and metallurgical integration, pyro-manganese fluidization reduction and other core technologies, processes and equipment; and Hegang Steel Co., Ltd. Chengde points The company, Chaoyang Xinhongda Vanadium and Titanium Co., Ltd., Jiutai Group and other industry-leading companies have cooperated closely and built a series of 10,000-ton level demonstration projects.
The 50,000 tons/year vanadium slag submerged-salt method vanadium-chromium total indicator project can realize the utilization rate of vanadium and chromium resources of 90% and above 80%, and the simultaneous extraction and separation of vanadium and chromium can be achieved on an industrial scale for the first time; the new process can be sourced Avoid high-salt ammonia wastewater, harmful kiln gas emissions, is a green upgrade of the global vanadium extraction technology, and provides an effective solution for cracking the clean utilization of China's 3.6 billion tons of high chromium vanadium-titanium magnetite. The technology is listed as '2017 China Steel Technology Innovation Global No.1' technology. This project is also listed in the list of 2017 green manufacturing system integration projects announced by the Ministry of Industry and Information Technology.
The 100,000-ton/year ultra-poor vanadium titano-magnetite ore beneficiation demonstration project can obtain vanadium-bearing iron ore concentrate and titanium concentrate product, with significant economic benefit; 1000 tons of vanadium-bearing iron concentrate selective reduction iron-wet separation and extraction The vanadium-titanium technology demonstration project achieved an iron yield of 91%, vanadium recovery rate of 80%, and titanium recovery rate of 75%. The new technology has a short process, high recovery of vanadium and titanium, and high added value of products, supporting China's super 10 billion tons Large-scale utilization of ultra-lean vanadium-titanium magnetite. The project was listed in the key project plan of Hebei Province in 2018, and is currently constructing a 50,000-ton/year pilot base.
The world’s first 200,000-tonne soft-manganese fluidized reduction production demonstration line has achieved a stable product recovery rate of over 95%, and a 30% reduction in overall process energy consumption compared to traditional processes (110 kgce/t ore), which has effectively promoted China's The high-efficiency, clean use of low-grade pyrolusite resources was selected in 2016 as the 'Highlights of the Transfer of Science and Technology Achievements of the Chinese Academy of Sciences' and the demonstration project of the 20th anniversary of the restoration of Wenshan Prefecture in Yunnan Province.
On March 26th, the Science and Technology Promotion and Development Bureau of the Chinese Academy of Sciences held the Acceptance Meeting of the “Scientific Service Network Program (STS) Project of the Chinese Academy of Sciences (SST) Project”) from the Tsinghua University, Beijing University of Science and Technology, in Beijing. Researchers at the Beijing Nonferrous Metal Research Institute, Hegang Group, Jiutai Group, Hengshui Hi-tech Zone, Space Applications Engineering and Technology Center of the Chinese Academy of Sciences and other experts from the field formed an acceptance expert group. The project leader Wang Lina and associate researcher Zou Zheng respectively reported on the overall implementation of the project and the implementation of the three topics and accepted questions from the expert group.
Experts at the meeting believe that the project has fully achieved the established objectives and has produced significant economic, environmental, and social effects. It is intended to promote the technological transformation of the efficient and clean use of China's major mineral resources, and to support the greenization of vanadium and titanium industries and the electrolytic manganese industry. Sustained development has provided powerful scientific and technological support. When summarizing the summary, Fu Guangyi, Director of the High Technology Division of the Science and Technology Promotion and Development Bureau of the Chinese Academy of Sciences pointed out that the green upgrade of China’s strategic metal resources comprehensive utilization technology is the core task of the “Made in China 2025” green manufacturing field. We hope to use the project as an opportunity to focus on the country's major strategic needs, face the key issues in the battlefield of science and technology, be bold in innovation, continue to work hard, make a good fight, and make greater contributions to industrial green escalation and technological innovation.
50,000 tons/year vanadium slag sub-smelting salt method vanadium chromium co-production industrialization demonstration
200,000-ton/year Pyrolusite Fluidization Reduction Industrialization Demonstration Project
Ultra-poor vanadium titanomagnetite smelting and smelting integration technology 1000-ton demonstration project
