稀土产业中游专利技术研发热点分析

Hot Spot Analysis of Patented Technology Development in the Middle Reaches of Rare Earth Industry

为了了解稀土产业的前沿和发展趋势,基于专利信息计量视角客观呈现稀土中游产业的核心技术变化趋势,按照对稀土产业链的划分,针对稀土产业链中游,对有关稀土材料的专利文献进行深入分析,利用科学知识图谱方法绘制核心技术领域和核心技术的共现网络和演进网络,发现技术热点和技术之间的共现关系,从而追踪技术的演进历程和未来可能的发展方向,为稀土行业的发展提供一定的理论和实践支持。B01D-053/94、B01J-023/10、B01J-023/63等在稀土产业中游热点技术领域共现知识图谱中处于核心地位。J04-E04、J04-E11、N01-B、N07-L02C等在稀土产业中游热点技术共现知识图谱中处于核心地位。

As a large rare earth country,China has the advantages and scale of rare earth development.For the purpose of understanding the frontier and development trend of rare earth industry,this paper objectively presents the core technology change trend of rare earth midstream industry based on the perspective of patent information measurement.According to the division of rare earth industrial chain,the patent literature on rare earth materials was analyzed in depth.The scientific knowledge map method was used to draw co-occurrence networks and evolution networks of core technology areas and core technologies,and discover the co-occurrence relationship between technology hotspots and technologies,so as to track the evolution of technology and possible future development directions and provide certain theoretical and practical support for the development of the rare earth industry.B01 D-053/94,B01 J-023/10,B01 J-023/63 are at the core of the common knowledge map in the hot spot technology field of the rare earth industry.J04-E04,J04-E11,N01-B,N07-L02 C are at the core of the common knowledge map of hot spot technology in the rare earth industry.