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云南滇池地区磷资源丰富,是我国主要产磷基地之一。该地区的开发已列为“七五”期间化学矿山的重点建设项目。目前正在设计待建的有晋宁、安宁、上蒜等矿山及擦洗厂。擦洗厂年处理原矿总能力约200万吨,尾矿量约20万吨。据试验资料,尾矿粒度一般为-0.04毫米,含P_2O_5为19％左右。笔者认为对回收尾矿中的P_2O_5进行探讨是有价值的,其理由是:
Yunnan Dianchi Lake is rich in phosphorus resources and is one of the major phosphorus production bases in China. The development of the area has been listed as a key construction project of chemical mines during the “Seventh Five-Year Plan” period. Jinning is currently being designed to be built, tranquility, garlic and other mines and scrub plants. Scrubbing plant processing the total capacity of about 200 tons of ore, tailings volume of about 200,000 tons. According to the experimental data, the tailings size is generally -0.04 mm, with P_2O_5 about 19%. I believe that the recovery of tailings P_2O_5 is valuable, the reason is: