Effect of Combined Reagents of Sodium Citrate and Sodium Pyrophosphate on Flotation Separation of a Polymetallic LeadZinc Ore

Jianmin LI  Kaiwei SONG  Xiaolin ZHANG  Jialei LI  Dianwen LIU

doi:10.12034/j.issn.1009-606X.216316

The Chinese Journal of Process Engineering >

2017 , Vol. 17 >Issue 3: 500 - 505

DOI: https://doi.org/10.12034/j.issn.1009-606X.216316

Reaction & Separation

Effect of Combined Reagents of Sodium Citrate and Sodium Pyrophosphate on Flotation Separation of a Polymetallic LeadZinc Ore

Jianmin LI Kaiwei SONG Xiaolin ZHANG Jialei LI Dianwen LIU

Expand

Faculty of Land Resources Engineering, State Key Laboratory of Complex Non-Ferrous Metal Resources Cleaning Utilization,
Kunming University of Science and Technology, Kunming, Yunnan 650093, China

Received date: 2016-10-10

Revised date: 2016-10-20

Online published: 2017-06-14

Fold

Abstract

The flotation separation was conducted on the basis of the properties study of a complex polymetallic ore. The results showed that there are many kinds of minerals in the ore, and the elements of Pb, Zn could be recovered. The main minerals of Pb and Zn are galena and sphalerite respectively. It is difficult to separate lead minerals from zinc minerals because the galena is closely locked with sphalerite, and the fine disseminated grain size and high oxidation rate of lead minerals. A processing flowsheet of stage-grinding and stage-flotation was adopted. The results are as follows: The lead minerals were recovered by the flotation process of one roughing, three cleaning and one scavenging, using D₄₂₁ as collector, combined reagents of sodium pyrophosphate and sodium citrate as depressants. The zinc minerals were recovered by starting rough concentrate regrinding, followed by flotation with a circuit of one roughing, two cleaning and one scavenging, CuSO₄ and butyl xanthate were used as activator and collector respectively. In a closed circuit test, a lead concentrate was obtained with the Pb grade of 60.34% and a recovery rate of 81.31%, and the Zn content of 6.74%, a sphalerite concentrate was obtained with a grade of 47.86% Zn and a recovery rate of 93.11%, and the Pb content of 0.62%. The combined reagents of sodium pyrophosphate and sodium citrate have strong depressing effect on sphalerite floatation, and the optimum mass ratio is 1:1.

Key words： combined reagent; sodium pyrophosphate; sodium citrate; Pb/Zn separation; preferential flotation

Cite this article

Jianmin LI Kaiwei SONG Xiaolin ZHANG Jialei LI Dianwen LIU . Effect of Combined Reagents of Sodium Citrate and Sodium Pyrophosphate on Flotation Separation of a Polymetallic LeadZinc Ore[J]. The Chinese Journal of Process Engineering, 2017 , 17(3) : 500 -505 . DOI: 10.12034/j.issn.1009-606X.216316

References

[1]陈喜峰, 彭润民.中国铅锌矿资源形势及可持续发展对策[J].有色金属, 2008, 60(3):129-132
[3]毕克俊, 方建军, 张琳, 等.云南某低品位铅锌硫化矿选矿工艺[J].过程工程学报, 2016, 16(1):99-104
[5]李文娟, 刘爽, 宋永胜, 等.某铅锌银复杂多金属硫化矿的浮选工艺研究[J].稀有金属, 2015, 39(2):159-168
[7]Rath R K, Subramanian S.Adsorption,electrokinetic and differential flotation studies on sphalerite and galena using dextrin[J].International journal of mineral processing, 1999, 57(4):265-283
[8]杨大锦，谢刚，贾云芝，等.低品位氧化锌矿堆浸实验研究[J].过程工程学报, 2006, 6(1):59-62
[10]J Liu, S Wen, J Deng, X Chen, Q Feng.DFT study of ethyl xanthate interaction with sphalerite (110) surface in the absence and presence of copper[J].Applied Surface Science, 2014, 311(16):258-263
[11]王庚辰, 魏德洲.锡铁山含银铅锌硫化物矿石浮选分离研究金属矿山, 2005 (11): -30.[J].金属矿山, 2005, 34(11):27-30
[13]Chandra A P, Gerson A R.A review of the fundamental studies of the copper activation mechanisms for selective flotation of the sulfide minerals,sphalerite and pyrite[J].Advances in Colloid and Interface Science, 2009, 145(1):97-110
[14]J Liu, S Wen, D Wu, et al.Determination of the concentrations of calcium and magnesium released from fluid inclusions of sphalerite and quartz[J].Minerals Engineering, 2013, 45(3):41-43
[15]Liu Q, Zhang Y.EFFECT OF CALCIUM IONS AND CITRAIC ON FLOTATION SEPARATION OF CHALCOPYRITE FROM GALENA USING DEXTRIN[J].Minerals Engineering, 2000, 13(3):1405-1416
[16]W Qin, Q Wei, F Jiao, N Li, P Wang, L Ke.Effect of sodium pyrophosphate on the flotation separation of chalcopyrite from galena[J].International Journal of Mining Science and Technology, 2012, 22(3):345-349
[17]刘宝山, 邱树敏, 李国栋，等.西北某难选混合铅锌矿浮选试验[J].有色金属, 2014, 58(6):17-20
[19]刘得舜, 周涛.甘肃小厂坝铅锌矿选矿试验[J].甘肃冶金, 2014, 36(4):3-7
[21]柏亚林, 王李鹏.某贫铅高锌复杂难选铅锌矿浮选分离工艺研究[J].甘肃冶金, 2012, 34(4):35-38
[23]Shen W Z, Fornasiero D, Ralston J.Effect of collectors,conditioning pH and gases in the separation of sphalerite from pyrite[J].Minerals Engineering, 1998, 11(2):145-158
[24]郭倩, 张丹萍, 郭巨杰, 等.从高岭土尾矿中浮选铅锌[J].过程工程学报, 2015, 15(6):962-968
[26]董进明, 付中华, 张延玲, 等.体系中选择性分离锌铅的实验研究[J].过程工程学报, 2010, 10(5):886-892
[28]Mehrabani J V, Noaparast M, Mousavi S M, DehghanＲ，Ｒasooli E，Hajizadeh H.Depression of pyrite in the flotation of high pyrite low-grade lead–zinc ore using Acidithiobacillus ferrooxidans[J].Minerals Engineering, 2010, 23(1):10-16
[29]李国栋, 柏亚林, 包玺琳, 等.甘肃某复杂铅锌锌硫化矿石浮选新工艺研究[J].金属矿山, 2012, 41(8):65-69
[31]Rashchi F, Finch J A.Polyphosphates: a review their chemistry and application with particular reference to mineral processing[J].Minerals Engineering, 2000, 13(10):1019-1035

Options

Outlines

模态框（Modal）标题

Abstract

Cite this article

References