拜耳法溶出中低品位矿降低碱耗的研究现状
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摘要
我国的铝土矿绝大部分是高铝、高硅的一水硬铝石型,铝硅比(A/S)在5~8的中低品位矿占80%以上,经济有效地采用拜耳法生产氧化铝较困难。为提高我国氧化铝产业的竞争力,很有必要对拜耳法生产氧化铝进行生产工艺的优化,降低碱耗。本文主要从原料处理、添加剂、溶出工艺三方面介绍了近年来国内外学者为降低碱耗进行的研究。
Most bauxite in our country is a kind of diasporic bauxite with high aluminum and high silicon,the middle and low grade ore that aluminum and silicon ratio( A/S) is 5 ~ 8 have more than 80% content,it is very difficult to produce the alumina by Bayer process cost-effectively. It is necessary to optimize the production process of alumina which is originally produced by Bayer process,to decrease the alkali consumption in order to improve the competitiveness of alumina industry of our country. The study on decreasing of alkali consumption in recent years carried by domestic and foreign scholar is introduced mainly from the aspects that raw material treatment,addition agent and dissolution rate.
Most bauxite in our country is a kind of diasporic bauxite with high aluminum and high silicon,the middle and low grade ore that aluminum and silicon ratio( A/S) is 5 ~ 8 have more than 80% content,it is very difficult to produce the alumina by Bayer process cost-effectively. It is necessary to optimize the production process of alumina which is originally produced by Bayer process,to decrease the alkali consumption in order to improve the competitiveness of alumina industry of our country. The study on decreasing of alkali consumption in recent years carried by domestic and foreign scholar is introduced mainly from the aspects that raw material treatment,addition agent and dissolution rate.
引文
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[14]李军旗,张煜.含铝硅矿物预脱硅工艺研究进展[J].湿法冶金,2010(4):229-232.
[15]Solymár K,Mádai D F,Papanastassiou D.Effect of Bauxite Microstructure on Beneficiation and Processing[J].Tms Light Metals,2013(1):37-42.
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[18]赵江曼,朱明龙,张旭,等.硅酸盐细菌的筛选、鉴定和对铝硅酸盐矿物的作用研究[J].高校化学工程学报,2014(5):1036-1043.
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[21]Xiafang Sheng,Weiyi Huang.Mechanism of potassium release from feldspar affected by the sprain Nbt of silicate bacterium[J].Acta Pedologica Sinica,2002(39):165-172.
[22]Wuxing Liu,Xushi Xu,Xianghua Wu,et al.Decomposition of silicate minerals by Bacillus mucilaginosus in liquid culture[J].Environmental Geochemistry and Health,2006,28(1):133-140.
[23]刘桂华,刘云峰,李小斌,等.拜耳法溶出过程降低赤泥碱耗[J].中国有色金属学报,2006,16(3):555-559.
[24]Mark C.Barnes,Jonas Addai-Mensah,Andrea R.Gerson.The kinetics of desilication of synthetic spent Bayer liquor seeded with cancrinite and cancrinite/sodalite mixed-phase crystals[J].Journal of Crystal Growth,1999,200(1-2):251-264.
[25]胡秋华.石灰烧成质量对石灰拜耳法生产的影响[C].中国科学技术协会年会,2007.
[26]赵清法,杨红菊.石灰拜耳法石灰添加方式探讨[J].有色冶金节能,2002(5):19-21.
[27]刘桂华,齐天贵,田侣,等.氧化镁在铝酸钠溶液脱硅中的反应行为[J].中国有色金属学报,2013(7):2055-2060.
[28]元炯亮,张懿.含钙添加剂强化─水硬铝石矿拜耳法溶出过程的作用分析[J].化工冶金,2000(1):108-112.
[29]李新华,顾松青,尹中林,等.添加水化铁酸钙拜耳法新工艺溶出规律及机理研究[J].有色金属(冶炼部分),2008(6):18-21.
[30]李新华,顾松青,尹中林,等.中低品位铝土矿添加铁酸钙的溶出规律及机制[C].全国湿法冶金学术会议,2008.
[31]陈文汨,黄伟光,陈学刚.改变石灰添加点降低铝土矿拜耳法溶出碱耗的研究[J].轻金属,2008(5):9-12.
[32]陈文汨,彭秋燕,黄伟光,等.改变拜耳法预脱硅工艺降低赤泥化学结合碱的研究[J].轻金属,2010(6):9-12+19.
[33]彭秋燕.二段法溶出降低赤泥碱耗的研究[D].长沙:中南大学,2010.
[34]P.J.Cresswell,D.J.Milne.HYDROTHERMAL PROCESS FOR RECOVERY OF SODA AND ALUMINA FROM RED MUD[J].1982.
[35]戚立宽.280℃以上石灰拜耳法的溶出研究[J].轻金属,1987(12):10-12.
[2]提高氧化铝回收率降低碱耗的新成就[J].有色金属(冶炼部分),1965(1):20-23.
[3]潘晓林,于海燕,涂赣峰,等.石灰对三水铝石型铝土矿低温溶出行为的影响[J].东北大学学报(自然科学版),2013,34(4):551-555.
[4]张玉明,杨开国.利用国外三水铝土矿生产氧化铝溶出工艺条件的优化[J].轻金属,2001(10):19-20.
[5]崔萍萍,黄肇敏,周素莲.我国铝土矿资源综述[J].轻金属,2008(2):6-8.
[6]王秋霞,张克仁,陈国铭,等.我国铝土矿资源开发与保护对策[J].矿产保护与利用,2001(3):49-54.
[7]马科友,李晓乐,王红伟.铝硅比对中低品位铝土矿拜耳法溶出技术经济指标的影响[J].有色金属(冶炼部分),2016(6):47-49.
[8]姜涛,邱冠周,李光辉,等.中低品位铝土矿选矿预脱硅的新进展[J].矿冶工程,1999(2):5-8.
[9]马智敏,陈兴华,王玉才,等.铝土矿选矿脱硅技术研究现状及前景展望[J].矿产综合利用,2015(1):1-6+13.
[10]Yanwu Gai,Xingbiao Ding,Min Liu.Experimental study on feasibility of gravity separation of a low-grade bauxite ore[J].Mining&Processing Equipment,2012,
[11]刘冰,邱跃琴.铝土矿浮选脱硅研究现状与展望[J].现代矿业,2012(5):131-133.
[12]陈湘清,白万全,晏唯真.铝土矿浮选脱硅现状及研究进展[J].轻金属,2006(2):8-12.
[13]黄传兵,王毓华,陈兴华,等.铝土矿反浮选脱硅研究综述[J].金属矿山,2005(6):21-24.
[14]李军旗,张煜.含铝硅矿物预脱硅工艺研究进展[J].湿法冶金,2010(4):229-232.
[15]Solymár K,Mádai D F,Papanastassiou D.Effect of Bauxite Microstructure on Beneficiation and Processing[J].Tms Light Metals,2013(1):37-42.
[16]罗琳,何伯泉.高硅铝土矿焙烧预脱硅研究现状评述[J].金属矿山,1999(1):31-35.
[17]马跃如,罗琳.铝土矿的化学选矿[J].中国锰业,1999(2):28-31.
[18]赵江曼,朱明龙,张旭,等.硅酸盐细菌的筛选、鉴定和对铝硅酸盐矿物的作用研究[J].高校化学工程学报,2014(5):1036-1043.
[19]M Urík,M Bujdo?,B Milová-?iaková,et al.Aluminium leaching from red mud by filamentous fungi[J].Journal of Inorganic Biochemistry,2015(152):154.
[20]S.S.Vasan,Jayant M.Modak,K.A.Natarajan.Some recent advances in the bioprocessing of bauxite[J].International Journal of Mineral Processing,2001,62(1):173-186.
[21]Xiafang Sheng,Weiyi Huang.Mechanism of potassium release from feldspar affected by the sprain Nbt of silicate bacterium[J].Acta Pedologica Sinica,2002(39):165-172.
[22]Wuxing Liu,Xushi Xu,Xianghua Wu,et al.Decomposition of silicate minerals by Bacillus mucilaginosus in liquid culture[J].Environmental Geochemistry and Health,2006,28(1):133-140.
[23]刘桂华,刘云峰,李小斌,等.拜耳法溶出过程降低赤泥碱耗[J].中国有色金属学报,2006,16(3):555-559.
[24]Mark C.Barnes,Jonas Addai-Mensah,Andrea R.Gerson.The kinetics of desilication of synthetic spent Bayer liquor seeded with cancrinite and cancrinite/sodalite mixed-phase crystals[J].Journal of Crystal Growth,1999,200(1-2):251-264.
[25]胡秋华.石灰烧成质量对石灰拜耳法生产的影响[C].中国科学技术协会年会,2007.
[26]赵清法,杨红菊.石灰拜耳法石灰添加方式探讨[J].有色冶金节能,2002(5):19-21.
[27]刘桂华,齐天贵,田侣,等.氧化镁在铝酸钠溶液脱硅中的反应行为[J].中国有色金属学报,2013(7):2055-2060.
[28]元炯亮,张懿.含钙添加剂强化─水硬铝石矿拜耳法溶出过程的作用分析[J].化工冶金,2000(1):108-112.
[29]李新华,顾松青,尹中林,等.添加水化铁酸钙拜耳法新工艺溶出规律及机理研究[J].有色金属(冶炼部分),2008(6):18-21.
[30]李新华,顾松青,尹中林,等.中低品位铝土矿添加铁酸钙的溶出规律及机制[C].全国湿法冶金学术会议,2008.
[31]陈文汨,黄伟光,陈学刚.改变石灰添加点降低铝土矿拜耳法溶出碱耗的研究[J].轻金属,2008(5):9-12.
[32]陈文汨,彭秋燕,黄伟光,等.改变拜耳法预脱硅工艺降低赤泥化学结合碱的研究[J].轻金属,2010(6):9-12+19.
[33]彭秋燕.二段法溶出降低赤泥碱耗的研究[D].长沙:中南大学,2010.
[34]P.J.Cresswell,D.J.Milne.HYDROTHERMAL PROCESS FOR RECOVERY OF SODA AND ALUMINA FROM RED MUD[J].1982.
[35]戚立宽.280℃以上石灰拜耳法的溶出研究[J].轻金属,1987(12):10-12.