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一、我国萤石资源即将枯竭萤石又称为氟石,化学成分为氟化钙(CaF2,含氟48.9%),因在紫外线或阴极射线照射下常发出蓝绿色荧光而得名,一般呈粒状或块状。根据萤石中氟化钙的含量分类,萤石可以分为酸级萤石(>97%)、陶瓷级萤石(85%-95%)和冶金级萤石(65%-85%)。虽然我国萤石资源丰富但是品级较低:据美国地质局统计的数据,2013年全球萤石基础储量4.7亿吨,可开采储量2.4亿吨,我国已探明萤石矿区有500多处,分布在27个省(直辖市、自治区),基础储量高达11000万吨,占全球基础储量的
First, China’s fluorite resources are about to dry up Fluorite, also known as fluorite, the chemical composition of calcium fluoride (CaF2, fluorine 48.9%), due to the ultraviolet or cathode ray irradiation often issued blue-green fluorescence named, generally Granular or massive. Fluorite can be divided into acid grade fluorite (> 97%), ceramic grade fluorite (85% -95%) and metallurgical grade fluorite (65% -85%) according to the content of calcium fluoride in fluorite. Although fluorite is rich in resources but low in quality in our country, according to statistics from the United States Geological Bureau, the world’s fluorite reserves are 470 million tons and recoverable reserves are 240 million tons in 2013. There are more than 500 fluorite mining areas in our country, with a distribution In 27 provinces (municipalities and autonomous regions), the basic reserves of up to 110 million tons, accounting for the world’s basic reserves