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针对贵州某硅钙质胶磷矿原矿特性和技术难点，结合工艺矿物学分析和探索实验结果，拟定适合该胶磷矿的工艺技术路线。通过对磨矿细度、重选工艺、浮选工艺等关键环节的研究，优化了选矿技术参数。研究表明，采用重选分级，将磨矿后原矿分别重选精矿和重选尾矿，利用正-反浮选和双反浮选各自流程的优点，可以获得产率65.99%、w(P2O5)35.69%、MER(m(MgO+Fe2O3+Al2O3)/m(P2O5))7%、w(酸不溶物)6.58%、P2O5回收率87%的综合磷精矿。该工艺可有效降低选矿成本，提高磷精矿的品位和回收率，为该磷矿资源的高效利用提供了技术支持。
Abstract：According to the ore characteristics and technical difficulties of a silica-calc collophanite in Guizhou province,the technical route suitable for the collophanite is proposed based on the results of process mineralogy analysis and exploration test.Through the study of the fineness of grinding,gravity separation process,flotation process and other key links,the beneficiation technical parameters are optimized.The results show that the yield of 65.99%,w(P2O5)35.69%,MER(m(MgO+Fe2O3+Al2O3)/m(P2O5))7%,w(acid insoluble substances)6.58% can be obtained by using the advantages of positive reverse flotation and double reverse flotation respectively Comprehensive phosphorus concentrate is with 87% P2O5 recovery.The process can effectively reduce the dressing cost,improve the grade and recovery rate of phosphorus concentrate,and provide technical support for the efficient utilization of the phosphate ore resources.
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基本信息:
DOI：
中图分类号:TD97
引用信息:
[1]李宏毅,李丰.贵州某硅钙质胶磷矿选矿工艺研究[J].生态产业科学与磷氟工程,2025,40(05):14-18+100.
基金信息:
中蓝连海设计研究院有限公司科研基金项目（KYJJLX2024110008）