Discussion on the mineral processing method of Pudong Phosphorus Mine

China's phosphorus ore resources are very rich. However, its main body is sedimentary phosphorus rock, accounting for about 90% of the total reserves, and the reserves of rich ore are few. If the phosphate ore of medium and low grade is not processed by mineral processing, the direct production of phosphate fertilizer will inevitably lead to technical and economic irrationality. Therefore, rational use of phosphate rock resources, try to remove some harmful impurities in the processing of phosphate fertilizer - iron , aluminum , calcium, magnesium , silicon, sulfur, improve P; O in phosphate concentrate. The content of the phosphate fertilizer industry to meet the needs of the production of phosphate fertilizer industry, to provide high quality, efficient and cheap phosphate fertilizer for agricultural production, is an important issue to be solved. In the previous paragraph, we carried out laboratory tests on the siliceous phosphate rock in Puer City, and conducted some discussions on the ore dressing method. Through the test, the content of P20s in the ore can be increased from 24髟 to 35%, and the recovery rate of Plos. 74%. It has created conditions for the production of raw materials for the extraction of phosphoric acid and high-efficiency compound fertilizers. Original ore characteristics The Puzhen phosphate mine belongs to the Sinian Doushantuo Formation and is a “Bay-Line Sea” sedimentary type phosphorus rock deposit. Medium-sized, the ore layer is continuously distributed in layers. Useful minerals and a small amount of phosphate rock is apatite, dolomite gangue minerals, quartz, peat, clay minerals, metal minerals pyrite, sphalerite. The test raw ore was collected from the No. 2 stope in the middle section of No. 276 of a mining area, containing P. O. 24.19%, a medium-grade siliceous ore whose chemical composition is as follows. Multi-element analysis of raw ore

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