腐殖酸钠和过硫酸铵组合抑制剂浮选分离黄铜矿和方铅矿

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Published in中国有色金属学报：英文版 Vol. 26; no. 1; pp. 265 - 271
Main Author 刘瑞增 覃文庆 焦芬 王兴杰 裴斌 杨永军 赖春华
Format Journal Article
LanguageEnglish
Published 2016
Subjects
方铅矿
浮选
腐殖酸钠
过硫酸铵
黄铜矿
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Bibliography:The flotabilities of chalcopyrite and galena with sodium humate（HA） and ammonium persulfate（APS） as the depressant were studied by flotation test, adsorption measurement and infrared spectroscopic analysis. Single mineral flotation test shows that the slurry oxidation environment and the proper oxidation of galena surface are prerequisites for the depression of galena by sodium humate. The closed-circuit flotation test of copper/lead bulk concentrate shows that the grade and recovery of Cu reach 30.47% and 89.16% respectively and those of Pb reach 2.06% and1.58% respectively in copper concentrate, and the grade and recovery of Pb reach 50.34% and 98.42% and those of Cu reach 1.45% and 10.84% respectively in lead concentrate with HA and APS. The selective depression effect of HA and APS is more obvious than that of potassium dichromate. The results of FTIR analysis and adsorption measurements indicate that the adsorption of sodium humate on the fresh surface of galena is negligible, while after oxidation, sodium humate can be chemically adsorbed on the surface of galena. According to the theory of solubility product, the sodium humate can display the oxidation product PbSO_4, after then, adsorb on the surface of lead chemically to produce inhibitory effect. Thus, it can be seen that the combination of HA and APS is an efficient non-toxic reagent to achieve cleaning separation copper/lead bulk concentrate by flotation. The combination of HA and APS is an efficient non-toxic reagent to achieve cleaning for copper/lead bulk concentrate by flotation.
43-1239/TG
chalcopyrite; galena; sodium humate; sodium persulfate; flotation
Rui-zeng LIU, Wen-qing QIN, Fen JIAO, Xing-jie WANG, Bin PEI, Yong-jun YANG, Chun-hua LAI（ 1. School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; 2. Barun Mining Company, Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014080, China; 3. Zhengyuan Mining Co., Ltd., Honghe 662400, China）
ISSN:1003-6326