滇西褐煤伴生元素锗的富集及评价

CONCENTRATION LAW OF THE ACCOMPANY ELEMENT-GERMANIUM IN THE BROWN COAL OF WESTERN YUNNAN PROVINCE AND ITS COMPREHENSIVE EVALUATION

  • 摘要: 阐述了滇西褐煤中锗富集规律及其评价方法和回收利用等问题。指出在滇西122个第三系聚煤盆地中,仅有几个矿区褐煤中富锗,而它们仅分布在澜沧江以西大片花岗岩出露区,可见富锗煤矿区只在特定的地球化学环境中才能形成。含锗价值较大矿区在富锗段最小勘探网度应不小于100m,进一步圈定留待开采过程中加密取样。在充分利用了煤的热值后,应在烟尘及煤灰中回收锗,吨煤中锗的价值比煤本身高得多。

     

    Abstract: This paper discuss concentration law of germanium and its evaluating methods, recovery and effective utilization. There are only several brown coal areas where abundant germanium is contained among 122 brown coal basins in western Yunnan, while these areas locate only is the western side of the Lanchan river where granite exposes widely, therefore the information of coal mine areas rich in germanium needs a special geochemical environment. The mesh in the zone rich in germanium in a valuable mine area should not be smaller than 100m, while the further control will be realized in the mining process and more samples taked. After we have fully utilizated the heiting power and again recovered the germanium from the smoke and the ashes, thus the value of the germanium in a ton of coal is much higher than that of coal itself.

     

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