煤中稀有金属锗的提取技术研究进展

Research progress in extraction technology of rare metal germanium in coal

随着科技的发展,人们对金属锗的应用不断深入。锗需求量不断增加,相应对锗的生产也提出了更高的要求。主要介绍了从褐煤及粉煤灰中提取稀有金属锗的工艺研究进展,并论述了不同工艺方法的优缺点。简要分析了中国稀有金属锗所面临的问题,指出中国不仅应加大资金和科研力量开发低品位煤及粉煤灰中锗的提取技术,而且要投入到高端锗产品的技术研发中,这样既可以提高煤炭利用率和锗的回收率,避免对环境造成污染,又有利于保护中国稀散金属资源,提高中国科学技术水平。

With the development of science and technology,the application of metal germanium is deepening and germanium demand is expanding.Therefore,the germanium production is being put into a higher level.The research progress of extraction of rare metal germanium from lignite and fly ash was introduced,and the advantages and disadvantages of different methods were discussed.The problems of rare metal germanium that existed in China were analyzed.It was concluded that China should not only increase the funds and scientific research strength to develop the new germanium extraction technology from low-grade coal and fly ash,but also to invest in technology research and development of high-end germanium products,which will improve the utilization of coal and the recovery rate of germanium,avoiding pollution to the environment,beneficial to the protection of China′s scattered metal resources,and raising the level of science and technology in China.