摘要
Abstract
By chemical analysis,grinding optical sheet(observing by microscope), artificial placer analysis and scanning electron microscope electron microprobe analysis, it is found that the Pingbian vanadium ore belongs to the sedimentary type vanadium ore, the main types of which are silty tnudstone, fine calcarenite, micritic limestone and siliceous slate. The vanadium has two kinds of occurrence state. The first one is in the form of isomorphism ( partly because of the carbon of mineral inclusions adsorbing vanadium) , accounting for more than 70% in the ore,mainly occurring in such minerals as quartz,cymrite,apatite,calcite,limonite and vanadiferous rutile. The second one is in form of adsorption, mainly absorbed by carbon. The vanadium disperses into several minerals in the form of isomorphism, not in the independent form,so the vanadium ore should not be separated and enriched by the physical method, but the chemical one.关键词
钒矿/沉积型/赋存状态/电子探针/类质同象Key words
Vanadium/Sedimentary type/Occurrence state/Electron probe/Isomorphism series分类
矿业与冶金
