Selective Precipitation of Iron from Bio-oxidation Liquid of Gold Extraction
Received date: 2017-05-09
Revised date: 2017-07-26
Online published: 2018-05-18
The effect of pH value,temperature,diammonium hydrogen phosphate concentration,feeding ways and precipitate time on the selective precipitation of iron from bio-oxidation liquid of gold ore was studied,by taking bio-oxidation liquid of gold extraction as the research object and diammonium hydrogen phosphate as precipitant.The precipitation rate of iron reached 95.2% and the residual rate of arsenic in the bio-oxidation liquid was 93.6% under the conditions:flow the bio-oxidation liquid and 0.2 g/mL diammonium hydrogen phosphate at the same time,and adjust the pH value to 2.0 by adjust the flow rate of diammonium hydrogen phosphate,precipitate at 60 ℃ for 2.5 hours.XRD spectrum confirmed the precipitation of iron was mainly composed of ferric phosphate and ferrous dihydrogen phosphate.The results confirmed the selective precipitation of iron from bio-oxidation liquid,which can provide theoretic guidance to recovery valuable components such as iron and arsenic from bio-oxidation liquid.
DUAN Minjing , LIANG Changli , XU Baoquan , CHEN Lingkang . Selective Precipitation of Iron from Bio-oxidation Liquid of Gold Extraction[J]. Gold Science and Technology, 2017 , 25(6) : 121 -126 . DOI: 10.11872/j.issn.1005-2518.2017.06.121
[1] Li Junmeng.Processing techniques and select of refractory gold ore[J].Nonferrous Metal(Mineral Processing Section),2002(5):16-23.[李俊萌.难处理金矿石预处理工艺及其选择[J].有色金属(选矿部分),2002(5):16-23.]
[2] Cui Yongxia,Shen Yan.The difficult processing gold mine stone refines the technique research development[J].Gold Science and Technology,2007,15(3):53-57.[崔永霞,沈艳.难处理金矿石提炼技术研究进展[J].黄金科学技术,2007,15(3):53-57.]
[3] Zheng Ye.Pretreatment technique and its application of refractory gold ore[J].Gold,2009,30(1):36-41.[郑晔.难处理金矿石预处理技术及应用现状[J].黄金,2009,30(1):36-41.]
[4] Brierley C L,Brierley J A.Progress in bioleaching,part B:Applications of microbial processes by the minerals indust- ries[J].Applied Microbiology and Biotechnology,2013,97(17):7543-7552.
[5] Zhou Hongbo,Xiao Shengmu,Hu Yuehua,et al.Studies on the bio-pretreatment of gold ores[J].China Mining magazine,2006,15(2):39-42.[周洪波,肖升木,胡岳华,等.金矿石生物氧化预处理研究[J].中国矿业,2006,15(2):39- 42.]
[6] Olson G J,Brierley J A,Brierley C L.Bioleaching review part B:Progress in bioleaching:applications of microbial proce- sses by the minerals industries[J].Applied Microbiology & Biotechnology,2003,63(3):249-257.
[7] Liang Changli,Qin Wenqing,Chen Jinghe,et al.Effect of pH value on bio-oxidation of gold-containing pyrite by modera- tely thermophiles[J].Nonferrous Metals Science and Engineering,2016,7(3):25-28.[梁长利,覃文庆,陈景河,等.pH对中度嗜热混合菌氧化载金黄铁矿生物氧化的影响[J].有色金属科学与工程,2016,7(3):25-28.]
[8] Afidenyo J K.Microbial Pre-treatment of Double Refractory Gold Ores[D].Kingston:Queen’s University,2008.
[9] Gao Jinchang.Application practice and developing trend of biological metallurgy technology in gold industry[J].Gold,2008,10(9):36-40.[高金昌.生物冶金技术在黄金工业生产中的应用现状及发展趋势[J].黄金,2008,10(9):36-40.]
[10] Gahan C S,Cunha M L,Sandstrom A.Comparative study on different steel slags as neutralizing agent in bioleaching[J].Hydrometallurgy,2009,95(3/4):190-197.
[11] Zhang Zhiqian,Liu Shengming,Li Chao,et al.Bacterial preoxidation of refractory gold concentrate from the high altitude areas and cyanidation leaching of gold[J].The Chinese Journal of Process Engineering,2012,12(1):49-53.[张祉倩,刘升明,李超,等.高海拔地区难处理金精矿的细菌氧化预处理及氰化浸金[J].过程工程学报,2012,12(1):49-53.]
[12] Li Qian,Tian Yanwen,Yan Zengfan,et al.Study on the separation of arsenic and ferric from wastewater containing arsenic[J].Journal of Materials and Metallurgy,2010,9(1): 35-38.[李倩,田彦文,阎增范,等.含砷废水砷铁分离的研究[J].材料与冶金学报,2010,9(1):35-38.]
[13] Li Qian,Tian Yanwen,Li Jianzhong.Coprecipitation of Fe and As in wastewater from biological oxidation extraction of gold[J].Environmental Protection of Chemical Industry,2010, 30(6):520-522.[李倩,田彦文,李建中.生物氧化提金废水中的Fe、As共沉淀[J].化工环保,2010,30(6):520-522.]
[14] Sun Guangyong,Wang Weiting,Yang Jun,et al.Comprehensive recovery of arsenic from bio-oxidation gold ore slag[J].Nonferrous Metals(Extractive Metallurgy),2011(12):11-14.[孙光勇,王卫亭,杨军,等.含砷金矿细菌氧化提金废渣综合回收砷[J].有色金属(冶炼部分),2011(12):11-14.]
[15] Mu Ping.Investigation on Arsenic and Ferric Recovery from Arsenic Waste Water and Value-added Utilization of Ferric[D].Shenyang:Northeastern University,2010.[穆萍.生物氧化提金废液中砷铁回收及铁的高值化利用研究[D].沈阳:东北大学,2010.]
[16] Zhu Shuli.A Preliminary Study of the Recycling of Biological Oxidation Solution in the Gold Mineral Process[D].Nanchang:Nanchang University,2013.[朱淑莉.金矿选冶生物氧化液的资源化利用初探[D].南昌:南昌大学,2013.]
[17] Zheng Chunyu.Investigation on Arsenic Recovery and Value-added Utilization from Arsenic Waste Water[D].Shenyang:Northeastern University,2010.[郑春宇.生物氧化提金废液中单质砷的回收及高值化利用研究[D].沈阳:东北大学,2010.]
[18] Zheng Yajie,Luo Yuan,Wang Yong.Arsenic trioxide made by precipitation-reduction method from As-containing wastewater[J].Journal of Central South University(Science and Technology),2009,40(1):48-54.[郑雅杰,罗园,王勇.采用含砷废水沉淀还原法制备三氧化二砷[J].中南大学学报(自然科学版),2009,40(1):48-54.]
[19] Pauliina N,BestaminO,Keiko S,et al.Biooxidation and precipitation for iron and sulfate removal from heap bioleaching effluent streams[J].Hydrometallurgy,2010,101(1):7-14.
[20] Ma Guangcheng,Ding Shiwen,Li Qing,et al.Study on the synthesis and properties of iron(Ⅲ) phosphate[J].Journal of Hebei University(Natural Science Edition),1993,13(4):54-57.[马广成,丁士文,李青,等.正磷酸铁的合成及其性能的研究[J].河北大学学报(自然科学版),1993,13(4):54-57.]
[21] He Qin,Li Qian.Study on adsorption properties of iron phosphate for arsenic[J].Guangzhou Chemical Industry and Technology,2014,42(21):65-67.[何琴,李倩.磷酸铁对砷吸附性能的研究[J].广州化工,2014,42(21):65-67.]
[22] Carabante I,Grahn M,Holmgren A,et al.In situ ATR-FTIR studies on the competitive adsorption of arsenate and phosphate on ferrihydrite[J].Journal of Colloid and Inter-face Science,2010,351(2):523-531.
[23] Prosini P P,Lisi M,Scaccia S,et al.Synthesis and characterization of amorphous hydrated FePO4 and its electrode performance in lithium batteries[J].Journal of the Electrochemical Society,2002,149(3):297-301.
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