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混合捕收剂浮选难选钛铁尾矿
Flotation of Refractory Ilmenite Tailings with Mixed Collectors
【摘要】 研究了油酸钠、硬脂酸钠和现场混合药剂FH三种捕收剂单独及混合作用于钛铁矿纯矿物、人工混合矿的浮选行为。探究了混合捕收剂对六安钛铁尾矿浮选行为的影响。结果表明:油酸钠与硬脂酸钠混合以及油酸钠与FH混合后浮选效果增强,产生正协同作用,药剂的最佳混合比例分别为7∶3和5∶5。当钛铁矿矿浆浓度为40%,FH/油酸钠混合药剂用量为750 g/t,硫酸用量为1 250 g/t时,钛铁矿回收率和品位分别为67.14%和32.60%,相比单独使用两种捕收剂,回收率分别提高了16.89%和8.97%,品位分别提高了11.95%和6.02%。
【Abstract】 The flotation behaviors of pure ilmenite mineral and artificial mixed mineral were studied with the presence of single or mixed collectors including sodium oleate,sodium stearate and a mixed collector( FH). The effect of mixed collectors on the flotation behavior of the ilmenite tailings was investigated. The results showed that,using a mixture of sodium stearate and sodium oleate,or a mixture of FH and sodium oleate,the flotation efficiency was improved,testifying a positive synergistic effect generated between these collectors,and two kinds of mixed reagents are optimally in the ratio of 7∶ 3 and 5∶ 5,respectively. Testing with a pulp density of 40%,dosage of FH-sodium oleate mixture and sulfuric acid at 750 g /t and 1 250 g /t,respectively,resulted in an ilmenite with grade of 32. 60% at a recovery of 67. 14%,achieving an increase of 16. 89% and 8. 97% respectively in recovery,and an increase of 11. 95% and 6.02% respectively in grade compared with a separate addition of FH and sodium oleate.
- 【文献出处】 矿冶工程 ,Mining and Metallurgical Engineering , 编辑部邮箱 ,2014年05期
- 【分类号】TD923
- 【被引频次】6
- 【下载频次】152