The selectivity in flotation separation of spodumene from other pegmatic aluminosilicates such as feldspar and mica, using a single fatty acid anionic collector, is found to be very difficult. It is attributed to the same surface Al site for interaction with fatty acid. In this study, a collector mixture of sodium oleate (NaOL) and dodecyl trimethyl ammonium chloride (DTAC) demonstrates a high selectivity for the flotation of spodumene from feldspar. The influences of important factors such as molar ratio of the mixed collectors, dosages of calcium chloride, sodium hydroxide and sodium carbonate, and pulp temperature on spodumene and feldspar flotation using the mixed collectors have been investigated through micro-flotation tests. The optimum molar ratio of NaOL and DTAC is found to be 9:1. Sodium hydroxide has to be used as a pH regulator. Without the use of depressants, no selectivity is observed as the flotation of spodumene and feldspar are activated by Ca2+. Sodium carbonate must be used as depressant of feldspar. A comparison of the flotation for a lithium pegmatite ore using mixed fatty acid soaps and mixed anionic/cationic collectors (NaOL/DTAC) was carried out by the batch flotation tests. The results indicated that NaOL/DTAC decrease collector consumption by two-thirds. The recovery and grade of Li2O concentrates increase by 4.93% and 0.31%, respectively. (C) 2016 Elsevier Ltd. All rights reserved.
机构:
Northeastern Univ, Sch Resource & Civil Engn, Shenyang 110819, Peoples R China
Natl Local Joint Engn Res Ctr High Efficient Expl, Shenyang 110819, Peoples R ChinaNortheastern Univ, Sch Resource & Civil Engn, Shenyang 110819, Peoples R China
Xie, Ruiqi
Zhu, Yimin
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Northeastern Univ, Sch Resource & Civil Engn, Shenyang 110819, Peoples R China
Natl Local Joint Engn Res Ctr High Efficient Expl, Shenyang 110819, Peoples R ChinaNortheastern Univ, Sch Resource & Civil Engn, Shenyang 110819, Peoples R China
Zhu, Yimin
Liu, Jie
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Northeastern Univ, Sch Resource & Civil Engn, Shenyang 110819, Peoples R China
Natl Local Joint Engn Res Ctr High Efficient Expl, Shenyang 110819, Peoples R ChinaNortheastern Univ, Sch Resource & Civil Engn, Shenyang 110819, Peoples R China
Liu, Jie
Li, Yanjun
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Northeastern Univ, Sch Resource & Civil Engn, Shenyang 110819, Peoples R China
Natl Local Joint Engn Res Ctr High Efficient Expl, Shenyang 110819, Peoples R ChinaNortheastern Univ, Sch Resource & Civil Engn, Shenyang 110819, Peoples R China
机构:
Jiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R China
Jiangxi Univ Sci & Technol, Jiangxi Prov Key Lab Min & Met Environm Pollut Con, Ganzhou 341000, Peoples R ChinaJiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R China
Zhou, Hepeng
Xie, Fanxin
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Jiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R ChinaJiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R China
Xie, Fanxin
Luo, Xianping
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Jiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R China
Jiangxi Univ Sci & Technol, Jiangxi Prov Key Lab Min & Met Environm Pollut Con, Ganzhou 341000, Peoples R ChinaJiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R China
Luo, Xianping
Zhang, Boyuan
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Jiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R ChinaJiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R China
Zhang, Boyuan
Yang, Siqi
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Jiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R ChinaJiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R China
Yang, Siqi
Zhang, Yongbing
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Jiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R ChinaJiangxi Univ Sci & Technol, Engn Res Ctr High Efficiency Dev & Applicat Techno, Minist Educ, Ganzhou 341000, Peoples R China
机构:
Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, ChinaKey Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, China
Shu, Kaiqian
Xu, Longhua
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Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, China
State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang,Sichuan,621010, ChinaKey Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, China
Xu, Longhua
Wu, Houqin
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Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, ChinaKey Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, China
Wu, Houqin
Tang, Zhen
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Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, ChinaKey Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, China
Tang, Zhen
Luo, Liping
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Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, ChinaKey Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, China
Luo, Liping
Yang, Jie
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Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, ChinaKey Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, China
Yang, Jie
Xu, Yanbo
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Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, ChinaKey Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, China
Xu, Yanbo
Feng, Bo
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Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou,341000, ChinaKey Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang,Sichuan,621010, China
机构:
Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and TechnologyKey Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology
Liping Luo
Longhua Xu
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Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology
State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and TechnologyKey Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology
Longhua Xu
Xinzhang Shi
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Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and TechnologyKey Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology
Xinzhang Shi
Jinping Meng
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Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and TechnologyKey Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology
Jinping Meng
Ruohua Liu
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School of Resources Processing and Bioengineering, Central South UniversityKey Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology
机构:
Cent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R China
Luo, Yuanjia
Zhang, Guofan
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Cent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R China
Zhang, Guofan
Mai, Qiongyin
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Cent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R China
Mai, Qiongyin
Liu, Hongjiang
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Cent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R China
Liu, Hongjiang
Li, Changbin
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Cent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R China
Li, Changbin
Feng, Haigang
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Cent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R ChinaCent South Univ, Sch Mineral Proc & Bioengn, Changsha 410083, Hunan, Peoples R China