Effect and mechanism of o-butyl S-(1-chloroethyl) carbonodithioate collector in flotation separation of chalcopyrite and pyrite

被引：0

作者：

Chi X.-P. ^{[1
,2
,3
]}

Guo Y.-S. ^{[1
,2
]}

Zhong S.-P. ^{[1
,2
,3
]}

Zhong W. ^{[1
,2
]}

Lü X.-L. ^{[4
]}

机构：

[1] Zijin Mining College, Fuzhou University, Fuzhou

[2] Zijin Mining Group Joint Research Center for Comprehensive Utilization of Mineral Resources, Fuzhou University, Fuzhou

[3] State Key Laboratory for Comprehensive Utilization of Low-grade Refractory Gold Resources, Zijin Mining Group Co., Ltd., Shanghang

[4] Xiamen Zijin Mining and Metallurgy Technology Co., Ltd., Xiamen

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2021年 / 31卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Chalcopyrite; Flotation separation; New collector; Pyrite;

D O I：

10.11817/j.ysxb.1004.0609.2021-36568

中图分类号：

学科分类号：

摘要：

Using butyl sodium xanthate and dichloroethane as raw materials, a new chalcopyrite collector o-butyl S-(1-chloroethyl) dithiocarbonate (GC-Ⅰ) was synthesized. Gas chromatography and infrared spectroscopy analysis show that the agent is a lipid collector with a purity of 90.88%. The pure mineral flotation test compares the collection effect of the new agent GC-Ⅰ and the commonly used sulfide ore collectors on chalcopyrite and pyrite. The results show that, under the flotation conditions at the slurry pH of 7 and the slurry dosage of 160 mg/L, GC-Ⅰ can directly float 96.5% of chalcopyrite, and the recovery rate of pyrite is only 12%, which reflects the high selectivity of the new agent GC-Ⅰ to chalcopyrite. The flotation comparison test of the actual ore of Duobaoshan Copper Mine using GC-Ⅰ and butyl xanthate show that, under the same conditions, the recovery rates of the two agents for copper are similar. Using GC-Ⅰ as the collector, the grade of ore copper increases by 17.14%. FT-IR spectroscopy analysis show that GC-Ⅰ is chemically adsorbed on the surface of chalcopyrite and physically adsorbed on the surface of pyrite, which can achieve better separation of copper and sulfur. The adsorption capacity test results show that, when the pH value is 7, the adsorption capacity of GC-Ⅰ on the surface of chalcopyrite reaches the maximum value, and the adsorption capacity on the surface of pyrite is less. The change trend of adsorption capacity is consistent with the pure mineral flotation test. © 2021, Science Press. All right reserved.

引用

页码：1369 / 1376

页数：7

共 28 条

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