江西宜春高铁锂云母矿浮选分离试验研究
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摘要
江西宜春地区高铁锂云母矿品位低、组分复杂、风化严重,对该锂云母矿进行了浮选分离试验研究。结果表明,采用-0.045 mm粒级预先分级、脱泥,六偏磷酸钠强化粗选矿浆分散,以有效作用官能团数量更多、弥散性更好的改性醚二胺强化捕收,结合酒石酸、淀粉、煤油类混合抑制剂ZY强化铝硅酸盐矿物精选分离方案,解决了高铁锂云母资源不易分离回收难题,在原矿含Li_2O0.64%的情况下,获得了含Li_2O_3.62%、回收率78.53%的锂云母精矿。
Zinnwaldite resources in Yichun area of Jiangxi Province had the characteristic of low grade, complex composition and severe weathering. The flotation separation experiments of zinnwaldite resources in Yichun area were carried out. The results show that the difficult problem of separation and recovery of high-iron-lithium mica resources is solved by adopting the scheme of "pre-grading and desliming of-0.045 mm particle size, strengthening the dispersion of crude dressing slurry with sodium hexametaphosphate, strengthening the collection of zinnwaldite by modified ether diamine which contain more effective functional groups and better dispersibility,and strengthening the separation of aluminosilicate minerals by inhibitor ZY which mixed by artaric acid, starch and kerosene". Under the condition that the original ore contains 0.64% Li_2O, the concentrate containing 3.62% Li_2O and the recovery rate is 78.53% has been obtained.
Zinnwaldite resources in Yichun area of Jiangxi Province had the characteristic of low grade, complex composition and severe weathering. The flotation separation experiments of zinnwaldite resources in Yichun area were carried out. The results show that the difficult problem of separation and recovery of high-iron-lithium mica resources is solved by adopting the scheme of "pre-grading and desliming of-0.045 mm particle size, strengthening the dispersion of crude dressing slurry with sodium hexametaphosphate, strengthening the collection of zinnwaldite by modified ether diamine which contain more effective functional groups and better dispersibility,and strengthening the separation of aluminosilicate minerals by inhibitor ZY which mixed by artaric acid, starch and kerosene". Under the condition that the original ore contains 0.64% Li_2O, the concentrate containing 3.62% Li_2O and the recovery rate is 78.53% has been obtained.
引文
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[3] WANG B, PENG Y, VINK S. Diagnosis of the Surface Chemistry Effects on Fine Coal Flotation Using Saline Water[J]. Energy&Fuels, 2013,27(8):4869-4874.
[4]周贺鹏,张永兵,雷梅芬,等.磁选尾矿综合回收钽铌锂及长石选矿工艺研究[J].非金属矿,2018,41(3):69-71.
[5]张慧婷.十二胺和油酸组合捕收剂在锂云母表面吸附的分子动力学模拟[D].赣州:江西理工大学,2017.
[6]新疆云母超细磨矿及磨矿机理研究[D].武汉:武汉理工大学,2003.
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[8]刘方.硅酸盐矿物浮选过程中调整剂对捕收剂作用方式的研究[D].沈阳:东北大学,2011.
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