新闻资讯

New rare earth materials

In the "Twelfth Five-Year Development Plan for the New Material Industry," the rare earth new material special project was listed as one of the top ten projects organized and implemented by the state during the "Twelfth Five-Year Plan" period. The plan proposes that by 2015, the production technology of high-performance rare earth and rare metal functional materials will reach a new level, and the promotion and application of high-tech industries will reach more than 70%. Senior rare earth expert Xiong Jiaqi reviewed the technological progress of my country's rare earth new materials industry. If the early development is called the entrepreneurial exploration stage, then the "12th Five-Year" period should be called the innovation development period.
 
  "The plan puts forward the guiding direction for the independent innovation, R&D and industrialization of new rare earth materials. New rare earth materials are a 100 billion yuan industry, and the end products will be a trillion yuan industry." Xiong Jiaqi said that in the “Twelfth Five-Year Plan” and even in the future, the new growth point that will drive the development of the world economy lies in the low-carbon industries dominated by new energy, such as wind power, new energy green cars, power batteries, etc., which are inseparable from rare earth new material. In the future, the development and application of my country's rare earth new material terminal products will be the engine to promote the continuous upgrading of the rare earth industry.
 
  According to Professor Dou Xuehong, chief expert of the China Rare Earth Information Center, at present, rare earth permanent magnet materials, luminescent materials, hydrogen storage materials, polishing materials, etc. have become indispensable raw materials for equipment manufacturing and new energy industries. my country is the country with the richest rare earth resources in the world. At present, it has formed a relatively complete industrial system of rare earth industry chain from mineral processing, separation and purification, smelting, preparation of new materials to functional devices of new materials. At the same time, the research and development of new rare earth materials in my country has also made great progress, and a number of innovations with independent intellectual property rights have been obtained in the fields of rare earth permanent magnetism, luminescence, hydrogen storage, and catalysis. The high-performance rare-earth permanent magnet material technology jointly completed by the China Iron and Steel Research Institute won the second prize of the National Science and Technology Progress Award; the School of Materials Science and Technology of Shanghai University successfully prepared high-quality high-performance rare-earth laser transparent cicada wing oxide ceramics, making my country a After Japan, another laser output country.
 
  Xiong Jiaqi talked about his views on the main content involved in the special project of rare earth new materials. In terms of rare earth permanent magnet materials, the plan proposes to organize the development of production processes for new types of rare earth permanent magnet materials with high magnetic energy product. Xiong Jiaqi believes that this is actually the bottleneck of my country's rare earth permanent magnet material technology. He said that the current high-performance magnets prepared in my country have a low Curie temperature and a large temperature coefficient. Although they can meet the requirements of equipment miniaturization, they are difficult to meet the requirements of high temperature and high stability. Therefore, to realize the mass preparation of NdFeB permanent magnet materials with high magnetic energy product, it is necessary to increase research and industrialization efforts.   
 
  The plan proposes that in terms of hydrogen storage materials, it is necessary to actively develop new hydrogen storage materials with high specific capacity, low self-discharge and long life; accelerate the development of high-capacity, high-stability new hydrogen storage alloys for electric vehicles. Xiong Jiaqi told reporters that my country currently does not have mass-produced and practically used positive and negative electrode materials for automotive nickel-hydrogen power batteries. The key technology is still in foreign countries. It is necessary to promote the development and industrialization of hydrogen storage alloy technology. Hydrogen storage materials are the main raw materials for the production of nickel-metal hydride batteries, which can be charged and discharged at high currents. They are mainly used in hybrid vehicle manufacturing, small mobile communication equipment, notebook computers and other fields. As countries around the world pay more and more attention to environmental protection, the production of hydrogen storage materials Technology research and development will be increasingly valued by countries all over the world.
 
  In terms of luminescent materials, polishing materials, and cracking catalytic materials proposed in the plan, it is necessary to promote the industrialization of three-primary-color phosphors, 3D display short-afterglow phosphors, and white LED phosphors, and speed up high-end rare earth polishing powders, petroleum cracking catalytic materials, and automobiles. For the industrialization of exhaust gas purification catalytic materials, Xiong Jiaqi said that in these three major material fields, traditional small workshop-type production enterprises and modern large-scale production enterprises coexist in China, and there are many small and medium-sized enterprises with poor technological strength and technical equipment. In addition, due to factors such as weak technological innovation capabilities and the monopoly of foreign manufacturers in the downstream market, most domestic companies mainly produce low-end products, such as rare earth luminescent materials, and use rare earth luminescent materials for high-end energy-saving lamps and flat panel displays. In the field of rare earth luminescent materials for materials and special light sources, only a few domestic companies have the corresponding technical reserves and industrialization capabilities. Major enterprises producing polishing materials in my country, such as Baotou Steel Tianjiao Rare Earth Company adopt Japanese technology and equipment, and Baotou Rhodia Rare Earth Company adopt French technology.
 
  Industry experts generally believe that independent innovation is the key to my country's rare earth new materials industry to achieve the "Twelfth Five-Year" development plan. To advance research and development and technological innovation in the field of rare earth new materials, we must focus on system integration and long-term accumulation, and we must have the spirit of sharpening a sword for ten years. In addition, it is necessary to vigorously promote the construction of the rare earth industry technological innovation strategic alliance and technical service platform, and promote the construction of the rare earth industrial park, so as to tangibly enhance the overall strength of my country's rare earth new material research and development, and thus provide a strong foundation for the sustainable development of my country's rare earth industry. Strong technological support.