甘肃某氧化型锰矿选矿试验研究
|
摘要
针对甘肃某氧化型锰矿进行了工艺矿物学及选矿试验研究,原矿中Mn含量为21.48%。通过重选方法 "原矿-磨矿-重选"工艺,可得到锰品位25.50%,回收率为58.73%,尾矿中锰17.10%,损失率41.27%。通过原矿-磨矿-湿式强磁选工艺,在-0.074 mm含量为68.45%,用1650 mT的磁场强度下进行湿式强磁选所得到的锰精矿和尾矿,锰精矿含锰28.75%,回收率55.59%,尾矿中含锰15.96%,损失率为44.41%。将试验所获得的"精矿+中矿"合并焙烧后锰精矿锰品位可提高到29.21%以上,质量达到国标冶金用锰矿石A类A5Ⅱ组标准。
The process mineralogy and minernal processing experimental study of one oxidized manganese ore in Gansu was carried out,the Mn content in raw ore is 21. 48%. The manganese with the grade 25. 50%,and recovery rate 58. 73% can be got,the manganese content in tailings is 17. 10%,and the loss ratio is 41. 27% by means of the gravity separation method that "raw ore-ore grindinggravity separation". Under the conditions that the mesh of grind is-0. 074 mm,the proportion is 68. 45%,by means of raw ore-ore grinding-wet high-intensity magnetic separation process,the manganese concentrate and tailings can be get under 1650 mT magnetic field intensity by wet high-intensity magnetic separation,that the manganese content in manganese concentrate is 28. 75%,the recovery rate is 55. 59%,the manganese content in tailings is 15. 96%,the loss ratio is 44. 41%. The "concentrate + middlings" obtained from the test shall be roasted mixed,and the manganese grade of the manganese concentrate can be improved to above 29. 21%,which quality can reach to A5 Ⅱgroup standard,Class A of the National Standard about Metallurgical manganese ore.
The process mineralogy and minernal processing experimental study of one oxidized manganese ore in Gansu was carried out,the Mn content in raw ore is 21. 48%. The manganese with the grade 25. 50%,and recovery rate 58. 73% can be got,the manganese content in tailings is 17. 10%,and the loss ratio is 41. 27% by means of the gravity separation method that "raw ore-ore grindinggravity separation". Under the conditions that the mesh of grind is-0. 074 mm,the proportion is 68. 45%,by means of raw ore-ore grinding-wet high-intensity magnetic separation process,the manganese concentrate and tailings can be get under 1650 mT magnetic field intensity by wet high-intensity magnetic separation,that the manganese content in manganese concentrate is 28. 75%,the recovery rate is 55. 59%,the manganese content in tailings is 15. 96%,the loss ratio is 44. 41%. The "concentrate + middlings" obtained from the test shall be roasted mixed,and the manganese grade of the manganese concentrate can be improved to above 29. 21%,which quality can reach to A5 Ⅱgroup standard,Class A of the National Standard about Metallurgical manganese ore.
引文
[1]朱志刚.中国锰矿资源开发利用现状[J].中国锰业,2016,34(2):1-3.
[2]李小英,李俊.低品位含磷锰矿脱磷提锰研究[J].云南冶金,2016,45(6):33-38.
[3]李国栋,魏志聪.云南某低品位软锰矿强磁选工艺研究[J].中国锰业,2016,34(1):29-31,36.
[4]林海.某银锰矿矿泥选矿工艺试验[J].现代矿业,2017(6):120-123.
[5]杨永斌,吕鹏,李骞.某高铁菱锰矿选矿试验研究[J].矿冶工程,2017,37(2):68-70.
[6]谭鑫,蔡化文,黄成宝.广西天等锰矿碳酸锰选矿现状及发展方向[J].中国锰业,2017,35(4):17-19.
[7]潘加彬,刘子帅.广西某低品位碳酸锰矿选矿试验研究[J].云南冶金,2016,45(4):25-28.
[2]李小英,李俊.低品位含磷锰矿脱磷提锰研究[J].云南冶金,2016,45(6):33-38.
[3]李国栋,魏志聪.云南某低品位软锰矿强磁选工艺研究[J].中国锰业,2016,34(1):29-31,36.
[4]林海.某银锰矿矿泥选矿工艺试验[J].现代矿业,2017(6):120-123.
[5]杨永斌,吕鹏,李骞.某高铁菱锰矿选矿试验研究[J].矿冶工程,2017,37(2):68-70.
[6]谭鑫,蔡化文,黄成宝.广西天等锰矿碳酸锰选矿现状及发展方向[J].中国锰业,2017,35(4):17-19.
[7]潘加彬,刘子帅.广西某低品位碳酸锰矿选矿试验研究[J].云南冶金,2016,45(4):25-28.