The most important of tantalum and niobium have a wide variety of minerals, wherein the conductive tantalite ore, heavy tantalite, columbite, tantalum and niobium ore, etc. better, to select as a conductor electrically separated, and the like are not pyrochlore If it is a poor conductor, it cannot be separated by electrification. China's antimony ore has many resources. Most of them use re-election to enrich the antimony ore into coarse ore. After secondary selection and electrification, the final concentrate can be refined. Certain high-voltage election machine in some domestic tantalum and niobium ore (such as Xinjiang beneficiation plants, etc.) has been applied, universal access to good results. Because the antimony ore is a conductor in the coarse concentrate, and a large number of garnet , quartz , feldspar , mica, etc. are non-conductors, and can be effectively separated by electrical selection. After adopting high-pressure electric selection and using a certain process, the total recovery rate of lanthanum can increase the total recovery rate by more than 15% before being used. It is also proved that several mines in Xinjiang can significantly increase the total recovery rate of bismuth ore. The electric sorting machine developed by our department has also been well applied in the electric separation of antimony ore. The units of Malcolm Mining United Company and Tongcheng Changshi Mine have adopted our electric sorting machines, which have achieved good economic benefits. .
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