我国脉石英资源开发利用现状及供需分析

Current Situation and Supply Demand Analysis of the Development and Utilization of Vein Quartz Resources in China

脉石英是发展新一代信息技术、制造高端装备必需的新材料。我国高纯石英主要是以天然水晶、低温热液型脉石英为原料[1]。目前,我国水晶资源较少,采用脉石英替代日益枯竭的水晶资源制备超高纯石英。本文对我国脉石英资源现状、消费现状、高纯石英进出口贸易等进行了分析,结果表明:我国脉石英资源量较少,资源开发利用程度较低,开发原则失衡,矿床规模以中小型为主。建议提高用于玻璃用脉石英的勘查工作。从进出口贸易看,我国高纯石英对外依存度高,供应风险大。建议加快脉石英原料评价与提纯技术研发。

Vein quartz is a new material for developing new generation information technology and manufacturing high-end equipment. High purity quartz in China is mainly made from natural crystal and low temperature hydrothermal vein quartz. At present, there are few crystal resources in China, and vein quartz is used to replace the depleted crystal resources to prepare ultra-high purity quartz. In this paper, the vein quartz resources, consumption status, import and export trade of high purity quartz in China are analyzed. The results show that the vein quartz resources in China are less, the exploitation and utilization degree of resources is lower, the development principle is unbalanced, and the scale of deposits is dominated by small and medium-sized ores. It is suggested that the exploration of vein quartz be improved. From the point of view of import and export trade, Chinese high-purity quartz has a high degree of dependence on the outside world and a high risk of supply. It is suggested that the research and development of raw material evaluation and purification technology of vein quartz should be accelerated.