某伟晶岩型锂辉石矿石浮选试验
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摘要
某锂辉石矿石Li_2O品位为1.46%,矿物组成复杂,主要有用矿物为锂辉石,主要脉石矿物为石英、长石、云母等,锂辉石与石英、长石的嵌布关系密切,多呈聚粒状分布,局部分散,有的呈针状被云母、石英包裹,或呈片状、粒状等形态分布于云母裂隙中,属于复杂难选伟晶岩型锂辉石矿石。为确定该矿石的开发利用工艺,进行了选矿试验研究。结果表明,矿石在磨矿细度-0.074 mm占72.2%的情况下,采用磁选(636.94 kA/m)脱铁、浮选锂辉石工艺回收锂辉石,其中浮选以Na2CO3+NaOH作pH调整剂和脉石矿物分散剂,CaCl2作锂辉石的活化剂,TSY-15作捕收剂,经1粗2精3扫、中矿顺序返回流程处理,最终获得Li_2O品位为6.02%、Li_2O回收率为80.65%、Fe_2O_3含量为0.67%的锂辉石精矿,达到陶瓷级锂辉石精矿质量标准。
The spodumene ore contains 1.46% Li_2O,and the mineral composition is complicated. The main useful minerals are spodumene and gangue minerals are quartz,feldspar and glimmer. The spodumene is closely related to quartz and feldspar. Most of them are polygranular distributed,partly decentralized. It is acicular in mica and quartz,or in the form of flakes,granules,etc.,distributed in mica fissures. It is a complex and refractory pegmatite spodumene ore. In order to determine the development and utilization process of the ore,beneficiation experiment was conducted. The results showed: at the grinding fineness of 72.2% passing 0.074 mm,via magnetic separation(636.94 kA/m)to removal iron and spodumene recovered by flotation process,in which uses Na_2CO_3+NaOH as pH regulator and gangue mineral dispersant,CaCl_2 as activator,and TSY-15 as collector. Through one roughing,two cleaning,three scavenging and middlings bach to the flowsheet in turn process,the spodumene concentrate with Li_2O grade of 6.02%,recovery of 80.65% and Fe_2O_3 content of 0.67% is obtained.
The spodumene ore contains 1.46% Li_2O,and the mineral composition is complicated. The main useful minerals are spodumene and gangue minerals are quartz,feldspar and glimmer. The spodumene is closely related to quartz and feldspar. Most of them are polygranular distributed,partly decentralized. It is acicular in mica and quartz,or in the form of flakes,granules,etc.,distributed in mica fissures. It is a complex and refractory pegmatite spodumene ore. In order to determine the development and utilization process of the ore,beneficiation experiment was conducted. The results showed: at the grinding fineness of 72.2% passing 0.074 mm,via magnetic separation(636.94 kA/m)to removal iron and spodumene recovered by flotation process,in which uses Na_2CO_3+NaOH as pH regulator and gangue mineral dispersant,CaCl_2 as activator,and TSY-15 as collector. Through one roughing,two cleaning,three scavenging and middlings bach to the flowsheet in turn process,the spodumene concentrate with Li_2O grade of 6.02%,recovery of 80.65% and Fe_2O_3 content of 0.67% is obtained.
引文
[1]纪志永,焦朋朋,袁俊生,等.锂资源的开发利用现状与发展分析[J].轻金属,2013(5):1-5.Ji Zhiyong,Jiao Pengpeng,Yuan Junsheng,et al.The exploitation and utilization of lithium resources and its development[J].Light Metals,2013(5):1-5.
[2]陈婷,康自华.我国锂资源及其开发技术进展[J].广东微量元素科学,2007(3):6-9.Chen Ting,Kang Zihua.Lithium resources status and its progress of development technology in China[J].Guangdong Trace Elements Science,2007(3):6-9.
[3]林大泽.锂的用途及其资源开发[J].中国安全科学学报,2004(9):72-76.Lin Daze.Uses of lithium and its resource exploitation[J].China Safety Science Journal,2004(9):72-76.
[4]雪晶,胡山鹰.我国锂工业现状及前景分析[J].化工进展,2011(4):782-787.Xue Jing,Hu Shanying.Review on lithium industry in China[J].Chemical Industry&Engineering Progress,2011(4):782-787.
[5]Zeng X,Li J.Implications for the carrying capacity of lithium reserve in China[J].Resources Conservation&Recyclcing,2013(4):58-63.
[6]游清治.国内外锂工业发展的新动态和对我们的启示[J].新疆有色金属,2013(2):99-102.You Qingzhi.New developments in lithium industry at home and abroad and implications for us[J].Xinjiang Nonferrous Metals,2013(2):99-102
[7]Wang Y H.Effects of metallic ions on the flotation of spodumene and bery[lJ].Journal of China University of Mining&Technology,2007(1):35-39.
[8]温胜来,王玲珑,范林青.江西某低品位锂辉石矿选矿试验[J].金属矿山,2017(6):109-112.Wen Shenglai,Wang Linglong,Fan Linqing.Beneficiation experiment on a low grade spodumene ore from Jiangxi[J].Metal Mine,2017(6):109-112.
[9]张闾.浮选药剂的组合使用[M].北京:冶金工业出版社,1994.Zhang Yi.Combination of Flotation Agents Using[M].Beijing:Metallurgical Industry Press,1994.
[10]李荣改,宋翔宇,高志,等.河南某地低品位含锂粘土矿提锂新工艺研究[J].矿冶工程,2014(6):81-84.Li Ronggai,Song Xiangyu,Gao Zhi,et al.New technology for extracting Li from low-grade lithium-bearing clay[J].Mining&Metallurgical Engineering,2014(6):81-84.
[11]范新斌.锂辉石浮选中高效浮选剂的联合使用[J].新疆有色金属,2012(3):69-70.Fan Xinbin.Combined use of high-efficiency flotation agent for spodumene flotation[J].Xinjiang Nonferrous Metals,2012(3):69-70.
[12]Moon K S,Fuerstenau D W.Surface crystal chemistry in selective flotation of spodumene(LiAl[SiO3]2)from other aluminosilicates[J].International Journal of Mineral Processing,2003(1):11-24.
[13]孙传尧,印万忠.关于硅酸盐矿物的可浮性与其晶体结构及表面特性关系的研究[J].矿冶,1998(3):22-28.Sun Chuanyao,Yin Wanzhong.Research on relation between floatability of silicate minerals with their crystal structure and surface characteristics[J].Mining and Metallurgy,1998(3):22-28.
[14]Qi G W,Klauber C,Warren L J.Mechanism of action of sodium silicate in the flotation of apatite from hematite[J].International Journal of Mineral Processing,1993(3/4):251-273.
[15]冯木.新型捕收剂在锂辉石浮选中的作用机理及表面化学分析[D].长沙:中南大学,2014.Feng Mu.The Mechanism and Surface Chemical Analysis of New Collector Act with Spodumene[D].Changsha:Central South University,2014.
[16]王瑜.矿产资源综合利用手册[M].北京:科学出版社,2000.Wang Yu.Handbook of Comprehensive Utilization of Mineral Resources[M].Beijing:Science Press,2000.
[17]于福顺.锂辉石与绿柱石浮选分离工艺及机理的研究[D].长沙:中南大学,2005.Yu Fushun.Study on the Process and Mechanism of Flotation Separation between Spodumene and Beyrl[D].Changsha:Central South University,2005.
[18]张忠汉,李毓康,孙籍,等.关于碳酸钠、氟化钠、硫化钠对Ca2+、Fe3+活化的绿柱石、锂辉石作用规律及作用机理的研究[J].稀有金属,1983(4):4-11.Zhang Zhonghan,Li Yukang,Sun Ji,et al.Study on the effect of sodium carbonate,sodium fluoride and sodium sulfide on the activation of beryl,spodumene and the mechanism of action of Ca2+and Fe3[+J].Rare Metals,1983(4):4-11.
[2]陈婷,康自华.我国锂资源及其开发技术进展[J].广东微量元素科学,2007(3):6-9.Chen Ting,Kang Zihua.Lithium resources status and its progress of development technology in China[J].Guangdong Trace Elements Science,2007(3):6-9.
[3]林大泽.锂的用途及其资源开发[J].中国安全科学学报,2004(9):72-76.Lin Daze.Uses of lithium and its resource exploitation[J].China Safety Science Journal,2004(9):72-76.
[4]雪晶,胡山鹰.我国锂工业现状及前景分析[J].化工进展,2011(4):782-787.Xue Jing,Hu Shanying.Review on lithium industry in China[J].Chemical Industry&Engineering Progress,2011(4):782-787.
[5]Zeng X,Li J.Implications for the carrying capacity of lithium reserve in China[J].Resources Conservation&Recyclcing,2013(4):58-63.
[6]游清治.国内外锂工业发展的新动态和对我们的启示[J].新疆有色金属,2013(2):99-102.You Qingzhi.New developments in lithium industry at home and abroad and implications for us[J].Xinjiang Nonferrous Metals,2013(2):99-102
[7]Wang Y H.Effects of metallic ions on the flotation of spodumene and bery[lJ].Journal of China University of Mining&Technology,2007(1):35-39.
[8]温胜来,王玲珑,范林青.江西某低品位锂辉石矿选矿试验[J].金属矿山,2017(6):109-112.Wen Shenglai,Wang Linglong,Fan Linqing.Beneficiation experiment on a low grade spodumene ore from Jiangxi[J].Metal Mine,2017(6):109-112.
[9]张闾.浮选药剂的组合使用[M].北京:冶金工业出版社,1994.Zhang Yi.Combination of Flotation Agents Using[M].Beijing:Metallurgical Industry Press,1994.
[10]李荣改,宋翔宇,高志,等.河南某地低品位含锂粘土矿提锂新工艺研究[J].矿冶工程,2014(6):81-84.Li Ronggai,Song Xiangyu,Gao Zhi,et al.New technology for extracting Li from low-grade lithium-bearing clay[J].Mining&Metallurgical Engineering,2014(6):81-84.
[11]范新斌.锂辉石浮选中高效浮选剂的联合使用[J].新疆有色金属,2012(3):69-70.Fan Xinbin.Combined use of high-efficiency flotation agent for spodumene flotation[J].Xinjiang Nonferrous Metals,2012(3):69-70.
[12]Moon K S,Fuerstenau D W.Surface crystal chemistry in selective flotation of spodumene(LiAl[SiO3]2)from other aluminosilicates[J].International Journal of Mineral Processing,2003(1):11-24.
[13]孙传尧,印万忠.关于硅酸盐矿物的可浮性与其晶体结构及表面特性关系的研究[J].矿冶,1998(3):22-28.Sun Chuanyao,Yin Wanzhong.Research on relation between floatability of silicate minerals with their crystal structure and surface characteristics[J].Mining and Metallurgy,1998(3):22-28.
[14]Qi G W,Klauber C,Warren L J.Mechanism of action of sodium silicate in the flotation of apatite from hematite[J].International Journal of Mineral Processing,1993(3/4):251-273.
[15]冯木.新型捕收剂在锂辉石浮选中的作用机理及表面化学分析[D].长沙:中南大学,2014.Feng Mu.The Mechanism and Surface Chemical Analysis of New Collector Act with Spodumene[D].Changsha:Central South University,2014.
[16]王瑜.矿产资源综合利用手册[M].北京:科学出版社,2000.Wang Yu.Handbook of Comprehensive Utilization of Mineral Resources[M].Beijing:Science Press,2000.
[17]于福顺.锂辉石与绿柱石浮选分离工艺及机理的研究[D].长沙:中南大学,2005.Yu Fushun.Study on the Process and Mechanism of Flotation Separation between Spodumene and Beyrl[D].Changsha:Central South University,2005.
[18]张忠汉,李毓康,孙籍,等.关于碳酸钠、氟化钠、硫化钠对Ca2+、Fe3+活化的绿柱石、锂辉石作用规律及作用机理的研究[J].稀有金属,1983(4):4-11.Zhang Zhonghan,Li Yukang,Sun Ji,et al.Study on the effect of sodium carbonate,sodium fluoride and sodium sulfide on the activation of beryl,spodumene and the mechanism of action of Ca2+and Fe3[+J].Rare Metals,1983(4):4-11.