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东沟高岭土是由云母花岗岩风化而成的原生高岭土,储量丰富,但是原矿中含有大量伴生矿物如:石英、长石、云母等杂质,而高岭石与这些伴生矿物比重相近(大都在2.6g/cm~3左右)因此不能利用比重差进行选别。但从颗粒组成来看,高岭石颗粒非常细小,而石英和长石颗粒较大,粒度差别明显。因此可以利用分级进行选矿。本文试图通过东沟高岭土选矿试验来探讨矿物谱对选矿实验的指导作用。
Donggou kaolin is a native kaolin weathered by mica granite, with abundant reserves. However, the ore contains a large number of accompanying minerals such as quartz, feldspar and mica, while the kaolinite has a similar proportion to these associated minerals (mostly in the range of 2.6g / cm ~ 3 or so) can not be used to select the specific gravity difference. However, from the perspective of particle composition, kaolinite particles are very small, while quartz and feldspar particles are larger, particle size difference is obvious. So you can use the classification of beneficiation. This paper tries to explore the mineralogical spectrum to beneficiation experiments through the Donggou kaolin dressing test.