Reducing entrainment of sericite in fine flaky graphite flotation using polyalurninum chloride

被引：7
|
作者：
Qiu, Yangshuai [1 ]
Zhang, Lingyan [2 ]
Sun, Kangkang [3 ]
Li, Ye [2 ]
Qian, Yupeng [2 ]
机构：
[1] Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Hubei, Peoples R China
[2] Hubei Key Lab Mineral Resources Proc & Environm, Wuhan 430070, Hubei, Peoples R China
[3] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia
来源：
PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING | 2019年 / 55卷 / 05期
基金：
中国国家自然科学基金;
关键词：
fine flaky graphite; sericite; polyaluminum chloride (PACl); dispersion; aggregation; COAGULATION; PARTICLES; MECHANISMS; SPECIATION; RECOVERY; MINERALS;
D O I：
10.5277/ppmp19033
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Polyaluminum chloride (PACl) was introduced as a flocculant to reduce the entrainment of sericite gangue in fine flaky graphite flotation. The dispersion and aggregation behaviours of sericite and fine flaky graphite in the absence and presence of PACl were studied by settling experiments and verified by optical microscope images. Results of batch flotation tests for artificial mixtures indicated that the addition of PACl decreased the recovery of sericite gangue and the water recovery. Zeta potential measurements, FTIR and XPS analyses revealed that PACl selectively aggregated sericite particles in terms of charge neutralization and precipitate enmeshment.
引用
收藏
页码：1108 / 1119
页数：12
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