| 某高磷铁矿提铁降磷研究 |
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| 引用本文： | 朱德庆,春铁军,潘建,危雪梅. 某高磷铁矿提铁降磷研究[J]. 中南大学学报(自然科学版), 2011, 42(3) |
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| 作者姓名： | 朱德庆 春铁军 潘建 危雪梅 |
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| 作者单位： | 中南大学资源加工与生物工程学院,湖南长沙,410083 |
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| 基金项目： | 湖南省国土资源厅资助项目，中南大学研究生学位论文创新基金资助项目 |
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| 摘 要： | 以湖南某地高磷铁矿为原料,采用还原焙烧一磁选一硫酸浸出工艺进行提铁降磷试验研究.对还原焙烧一磁选粗精矿进行硫酸浸出工艺参数优化,对浸出时间、液固比、硫酸用量和搅拌速度等因素对提铁降磷效果的影响进行研究.研究结果表明:对原矿品位为47.28%Fe(质量分数)和磷含量为1.59%的高磷铁矿石经过还原焙烧一磁选得到的粗精矿,在浸出时间为2h、液固比为2.5、硫酸用量为50 kg/t和搅拌速度为500 r/min的条件下进行酸性浸出提铁降磷,最终得到铁精矿品位达62.35%Fe,磷含量为0.20%,铁总回收率为90.54%和脱磷率为87.42%.
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| 关 键 词： | 高磷铁矿 还原焙烧 磁选 酸性浸出 |
Upgrading iron and removing phosphorus from high-phosphorus iron ore |
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| ZHU De-qing,CHUN Tie-jun,PAN Jian,WEI Xue-mei. Upgrading iron and removing phosphorus from high-phosphorus iron ore[J]. Journal of Central South University:Science and Technology, 2011, 42(3) |
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| Authors: | ZHU De-qing CHUN Tie-jun PAN Jian WEI Xue-mei |
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| Affiliation: | ZHU De-qing,CHUN Tie-jun,PAN Jian,WEI Xue-mei(School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,China) |
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| Abstract: | The reduction roasting-magnetic separation-sulfuric acid leaching of high-phosphorus iron ores was studied.The process parameters of acid leaching were optimized with rougher iron ore concentrate obtained by reduction roasting-magnetic separation of ROM(run of mine) ores.The effects of various factors on upgrading iron and dephosphorization were discussed in acid leaching.The result shows that the iron ore concentrate,assaying 62.35% iron and 0.20% phosphorus content are achieved at the overall iron recover... |
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| Keywords: | high-phosphorus iron ore reduction roasting magnetic separation acid leaching |
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