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一、问题的提出 某些锆英石精矿中含有放射性的物质。放射性的来源主要是精矿混有没有分离干净的独居石。独居石是一种化学组成复杂的矿物,含有较多的镭、铀、钍等放射性元素;另外,某些锆英石矿物颗粒内部包含有镭、铀、钍等放射性元素,也是锆英石精矿具有放射性的一个原因。由于锆精矿中独居石含量大(有的高达4％以上),放射性强度高,在运输和冶炼过程中造成污染和毒害。根据
First, the question put forward Some zircon ore concentrate containing radioactive substances. The main source of radioactive concentrate is mixed with no clean monazite separation. Monazite is a complex chemical composition of minerals, containing more radium elements such as radium, uranium, thorium; In addition, some of the zircon particles contain radium, uranium, thorium and other radioactive elements, but also zircon quartz One reason mine is radioactive. As the monazite content of zirconium concentrate (up to 4% or more), high radioactivity, pollution and poisoning in the transport and smelting process. according to