内蒙古某低品位磷矿浮选工艺研究
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摘要
内蒙古某磷矿为变质型磷矿石,品位(P_2O_5)15.94%,主要杂质元素SiO2,含量31.97%。磷矿物主要为磷灰石,少量胶磷矿;脉石矿物主要有石英、云母。根据该磷矿石的矿石性质,进行了浮选试验研究。采用碳酸钠为矿浆pH调整剂,水玻璃为脉石矿物抑制剂,油酸钠为含磷矿物捕收剂,可以实现磷的有效回收。在条件试验及开路试验的基础上进行了一次粗选、二次精选小型闭路试验,可获得磷精矿品位(P_2O_5)30.21%,回收率(P2O5)70.81%的选别指标。
A phosphate ore in Inner Mongolia is a metamorphic phosphate ore with a grade(P2 O5)of15.94%and a main impurity element of SiO2 with a content of 31.97%.Phosphorus minerals are mainly apatite,a small amount of colloidal phosphate;gangue minerals mainly include quartz and mica.According to the properties of the phosphate ore,the flotation test study was carried out.The effective recovery of phosphorus can be achieved by using sodium carbonate as slurry pH regulator,sodium silicate as gangue mineral inhibitor and sodium oleate as phosphate mineral collector.On the basis of the condition test and the open circuit test,a small closed circuit test with one roughing and two cleanings was carried out,and the separation indexes of phosphate concentrate grade(P_2O_5)30.21%and recovery rate(P_2O_5)70.81% were obtained.
A phosphate ore in Inner Mongolia is a metamorphic phosphate ore with a grade(P2 O5)of15.94%and a main impurity element of SiO2 with a content of 31.97%.Phosphorus minerals are mainly apatite,a small amount of colloidal phosphate;gangue minerals mainly include quartz and mica.According to the properties of the phosphate ore,the flotation test study was carried out.The effective recovery of phosphorus can be achieved by using sodium carbonate as slurry pH regulator,sodium silicate as gangue mineral inhibitor and sodium oleate as phosphate mineral collector.On the basis of the condition test and the open circuit test,a small closed circuit test with one roughing and two cleanings was carried out,and the separation indexes of phosphate concentrate grade(P_2O_5)30.21%and recovery rate(P_2O_5)70.81% were obtained.
引文
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[5]万丽,曾克文,孙志健,等.云南某低品位磷矿浮选试验研究[J].IM&P化工矿物与加工,2018(2):1-4.
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[7]卯松,何晓太,张覃.钙离子对胶磷矿和白云石可浮性的影响研究[J].矿冶工程,2013,33(4):56-58.
[8]张国松,葛英勇,曾李明,等.新型药剂MG-7用于胶磷矿反浮选脱镁的研究[J].矿冶工程,2012,32(4):41-43.
[9]王安理,李建政,雒彩军,等.四川某中低品位磷矿反浮选脱镁提质试验研究[J].矿冶工程,2012,32(3):54-57.
[10]葛英勇,张敏,张元龙,等.新型螯合捕收剂YH-2浮选低品位胶磷矿研究[J].矿冶工程,2012,32(1):25-28.
[11]张明,谢金玲,刘璇,等.放马山低品位胶磷矿常温正-反浮选试验[J].矿冶工程,2015,35(1):44-50.
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[13]张文学.我国磷资源开发利用及趋势[J].武汉工程大学学报,2011,33(2):1-5.
[14]余永富,葛英勇,潘昌林.磷矿选矿进展及存在的问题[J].矿冶工程,2008,28(1):29-33.
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