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针对新疆某特大型羟硅铍石型铀铍共生矿的浮选精矿中氟含量较高的问题,研究分析了该矿的矿物和元素组成、矿物嵌布特征,并采用“先浮选萤石再浮选铍”工艺对矿石进行浮选,同时对磨矿细度、浮选药剂制度进行了优化。结果表明:针对铍品位0.435%、磨矿细度-325目占93%的原矿,在粗选水玻璃用量1.5 kg/t、NaOH用量2 kg/t、氧化石蜡皂用量700 g/t、扫选氧化石蜡皂用量500 g/t条件下,可得到铍品位为3.36%、铍回收率81.99%的浮选技术指标。该工艺能实现铍矿物的有效富集。
Abstract:Address to the issue of high fluorine content in the flotation concentrate of a super-large Beryllianite-type uranium-beryllium co-associated ore in Xinjiang, the mineral and elemental composition, as well as the mineral dissemination characteristics were studied.Flotation process of "floating fluorite first and then beryllium" was adopted for flotation.Grinding fineness and flotation reagent system were optimized through systematic flotation condition tests. The results show that for the raw ore with a beryllium grade of 0.435% and a grinding finness of-325 mesh accounting for 93%,under the conditions of 1.5 kg/t for sodium silicate in roughing, 2 kg/t for NaOH,700 g/t for oxidized paraffin soap in roughing, and 500 g/t for swept oxidized paraffin soap in scavenging, The technical indicators of flotation with beryllium grade of 3.36% and recovery rate of 81.99% are obtained. The process can achieve effective enrichment of beryllium minerals.
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基本信息:
DOI:10.13355/j.cnki.sfyj.2025.04.001
中图分类号:TD923;TD955
引用信息:
[1]田宇晖,李广,李镯等.新疆某羟硅铍石型铀铍矿浮选试验研究[J].湿法冶金,2025,44(04):433-439.DOI:10.13355/j.cnki.sfyj.2025.04.001.
基金信息:
国家重点研发计划项目(2024YFC2909703); 国家自然科学基金资助项目(U2341266); 中核集团研发平台稳定支持科研项目(中核科发2023-431号)