Iron extraction from pyrite cinder by mixed acid

doi:10.3969/j.issn.0438-1157.2013.07.042

CIESC Journal ›› 2013, Vol. 64 ›› Issue (7): 2619-2624.DOI: 10.3969/j.issn.0438-1157.2013.07.042

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Iron extraction from pyrite cinder by mixed acid

LIU Pei¹, JIANG Jian², LIU Zongkuan², ZHANG Lei², HE Yanling¹

1. School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China;
2. School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China

Received:2012-11-02 Revised:2012-12-25 Online:2013-07-05 Published:2013-07-05
Supported by:
supported by the Pollutant Emission Reduction Technology Integration Demonstration of Industrial Point Source of Weihe in Guanzhong(2011KTZB03-03-01)and the Key Technology Research of Reinjection Treatment for Oilfield Wastewater (2011KTCL03-06).

双酸法提取硫铁矿烧渣中铁

刘培¹, 江健², 刘宗宽², 张磊², 贺延龄¹

1. 西安交通大学人居环境与建筑工程学院, 陕西西安 710049;
2. 西安交通大学化学工程与技术学院, 陕西西安 710049

通讯作者: 贺延龄
作者简介:刘培(1982- ),女,硕士研究生。
基金资助:
渭河关中段工业点源水污染物减排技术研究集成示范项目(2011KTZB03-03-01); 油田采油废水回注处理的关键技术研究项目(2011KTCL03-06)。

Abstract

Abstract: Extraction of iron from pyrite cinder by mixed acid of sulfuric acid and hydrochloric acid, and main factors influencing iron leaching rate were investigated.In order to analyze feasibility of extraction of iron from pyrite cinder,the main elements were determined by using X-ray fluorescence spectrum analyzer (XRF).The crystal type of iron oxide in the pyrite cinder was also analyzed by X-ray diffraction (XRD)to understand the presence forms of iron in pyrite cinder.First,10 g dried pyrite cinder were added to a 250 ml three-necked flask.Then,sulfuric acid and hydrochloric acid of specified concentration and quantity were gradually added into the flask under proper stirring,and were kept at a specific temperature for several hours.After filtration,the solution was diluted to 250 ml with distilled water.The diluted solution was used for determination of iron content in leacheate using the stannous chloride-mercury chloride-potassium dichromate method.At last extraction conditions were optimized.The results showed that the significances of each factor on iron extraction were as follows:concentration of sulfuric acid>hydrochloric acid amount>reaction time>sulfuric acid over-dose coefficient.Iron extraction rate increased with higher reaction temperature and increasing amount of hydrochloric acid.However,there existed an optimum combination of sulfuric acid concentration,reaction time and sulfuric acid over-dose coefficient.The optimal conditions were reaction temperature 118—125℃,reaction time 3 h,sulfuric acid concentration 50%—60%,and hydrochloric acid 0.25 ml·(g pyrite cinder)^-1,sulfuric acid over-dose coefficient 1.2.Under these conditions,the extraction yield of iron was 93.1%,much higher than that by a single acid.So,the process can improve utilization of iron resource.

Key words: pyrite cinder, extraction rate, double acid leaching, sulfuric acid, orthogonal test

摘要： 应用硫酸-盐酸混酸浸出回收硫铁矿烧渣中的铁,探讨了主要因素对铁浸取率的影响,确定了最佳浸取条件。结果表明,各因素对铁浸取率影响的显著性为:硫酸浓度>盐酸用量>浸取时间>硫酸过量系数;提高反应体系温度,增加盐酸用量均能提高铁的浸取率,而硫酸浓度、反应时间以及硫酸过量系数对铁浸取率存在最佳值。在反应体系沸腾温度为118~125℃,浸取时间为3 h,硫酸浓度为50%~60%,盐酸用量为0.25ml·(g烧渣)^-1,硫酸过量系数为1.2的条件下,硫酸烧渣中铁的浸取率达到93.1%,明显高于单一酸的浸取率,提高了铁的资源综合利用率。

关键词: 硫铁矿烧渣, 浸取率, 双酸酸浸, 硫酸, 正交实验

CLC Number:

TQ111.19

LIU Pei, JIANG Jian, LIU Zongkuan, ZHANG Lei, HE Yanling. Iron extraction from pyrite cinder by mixed acid[J]. CIESC Journal, 2013, 64(7): 2619-2624.

刘培, 江健, 刘宗宽, 张磊, 贺延龄. 双酸法提取硫铁矿烧渣中铁[J]. 化工学报, 2013, 64(7): 2619-2624.

References 17

[1]	Li Wei(李伟).The research of direct acid dipping pyrite cinder//China's Environmental Science Society Annual Meeting[C].2008:871-874
[2]	Shi Zhaozhong(师兆忠),Gao Anquan(高安全),Zhang Gaoke(张高科).Study on the leaching of pyrite cinder in mixed acid medium[J].Industrial Minerals and Processing(化工矿物与加工),2011(10):4-6
[3]	Zhu D Q,Chen D,Pan J,Cui Y,Zhou X L.'One step' technology to separate copper,zinc,lead from iron in metallurgical slag and pyrite cinder(Ⅰ):Laboratory scale test[J].Mineral Processing and Extractive Metallurgy (Transactions of the Institution of Mining and Metallurgy,Section C),2012,121(2):79-85
[4]	Alp ?,Deveci H,Yazící E Y,Türk T,Süngün Y H. Potential use of pyrite cinders as raw material in cement production:results of industrial scale trial operations[J].J.Hazard Mater.,2009,166(1):144-149
[5]	Abdrakhimov A V,Abdrakhimova E S,Abdrakhimov V Z.Technical properties of roof tiles made of technogenic material with pyrite cinder[J].Glass and Ceramics,2006,63:130-132
[6]	Fernández-Caliani J C.Risk-based assessment of multimetallic soil pollution in the industrialized peri-urban area of Huelva,Spain[J].Environmental Geochemistry and Health,2012,34(1):123-129
[7]	Zuo Daxue(左大学),Wang Renzong(王仁宗).Study on the decomposition process of pyrite cinder with hydrochloric acid and sulfuric acid[J].Phosphate & Compound Fertilizer(磷肥与复肥),2012,27(3):10-12
[8]	Jin Cheng(金程).Study on reinforced acid of ferric iron in pyrite cinder[C].Shanghai:Donghua University,2012
[9]	Zhang Lili(张丽丽),Ma Xiaoni(马晓妮),Wang Hai(汪海).Experimental studies on influencing factors iron leaching rate in pyrite cinder[J].Journal of Taishan Medical College(泰山医学院学报),2010,31(11):865-867
[10]	Dong Fengzhi(董风芝).Progress on research of utilizing pyrite cinder as raw material for iron-making[J].Industrial Minerals and Processing(化工矿物与加工),2012(8):41-44
[11]	Zheng Xiaohong(郑晓红),Chen Yufeng(陈玉峰),Huang Shengguang(黄升光),Li Zhaomin(李昭敏),Zheng Yong(郑勇),Chen Zhen(陈震).Investigation on extracting iron from pyrite cinder by sulfuric acid leaching[J].Chemical Industry and Engineering Progress(化工进展),2003,22(2):165-168
[12]	Hao Yanling(郝艳玲),Fan Fuhai(范福海).Experiment on extracting iron from pyrite cinder with the direct hydrochloric acid solution technique[J].Acta Petrologica Et Mineralogica(岩石矿物学杂志),2004,23(3):279-281
[13]	Hao Xiaobin(郝晓斌).Research on preparing the material of soft magnetism ferrites using pyrite cinder.Wuhan:Wuhan University of Technology,2007
[14]	Qian Honghui(钱红辉).The research on preparation,modification and recycling of iron oxide desulfurizer.Wuhan:Wuhan University of Science and Technology,2010
[15]	Zhan Shouxiang(占寿祥),Zheng Yajie(郑雅杰).Study on leaching kinetics of pyrite cinder[J].Chemical Engineering (China)(化学工程),2006,34(11):36-39
[16]	Zuo Daxue(左大学).The research of preparing polymeric ferric sulfate by the mixed acid dissolving pyrite cinder and the microwave induction.Wuhan:Wuhan University of Science and Technology,2006
[17]	Zou Haiping(邹海平),Qiu Zumin(邱祖民),Qiu Junming(邱俊明).Progress in preparation of iron oxide by using three-wastes[J].Chemical Industry and Engineering Progress(化工进展),2007,26(2):173-179

Iron extraction from pyrite cinder by mixed acid

双酸法提取硫铁矿烧渣中铁

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