超细氰化尾渣中铜铅矿物颗粒界面性质
|
摘要
山东某冶炼厂氰化尾渣无法实现铜铅分选,通过XRD、激光粒度仪、浮选实验、FTIR、SEMEDS、金相显微镜等方法,研究了氰化尾渣铜铅矿物颗粒界面性质.结果表明,渣中主要矿物为方铅矿、黄铜矿、黄铁矿、闪锌矿,粒度小于38μm质量分数为95. 61%.氰化尾渣中的方铅矿和黄铜矿表面含有大量油状物,此油状物被证明是机械润滑油.黄铜矿表面吸附大量润滑油,造成黄铜矿无法被氰化物抑制.细颗粒方铅矿通过疏水作用力包裹在黄铜矿表面,导致铜铅无法分选.
The copper-lead separation of cyanide tailings from Shandong Province is hardly possible in the process of flotation. XRD,laser partide size analyzer,flotation experiment,FTIR,SEM-EDS and microscope are used to investigate the interface characteristics of lead and copper minerals. The results show that the main minerals in the cyanide tailings are galena,chalcopyrite,pyrite and sphalerite. The mineral particles smaller than 38 μm account for 95. 61%. The surface of chalcopyrite and galena in the cyanide tailings contains plenty of oil component and it is proved to be lubricating oil. Chalcopyrite is covered with lubricating oil and isn't inhibited by cyanide.Ultra-fine galena particles are wrapped on the surface of chalcopyrite by hydrophobic force,and this makes the lead and copper unable to be separated.
The copper-lead separation of cyanide tailings from Shandong Province is hardly possible in the process of flotation. XRD,laser partide size analyzer,flotation experiment,FTIR,SEM-EDS and microscope are used to investigate the interface characteristics of lead and copper minerals. The results show that the main minerals in the cyanide tailings are galena,chalcopyrite,pyrite and sphalerite. The mineral particles smaller than 38 μm account for 95. 61%. The surface of chalcopyrite and galena in the cyanide tailings contains plenty of oil component and it is proved to be lubricating oil. Chalcopyrite is covered with lubricating oil and isn't inhibited by cyanide.Ultra-fine galena particles are wrapped on the surface of chalcopyrite by hydrophobic force,and this makes the lead and copper unable to be separated.
引文
[1] Donato D B,Nichols O,Possingham H,et al. A critical review of the effects of gold cyanide-bearing tailings solutions on w ildlife[J]. Environment International,2007,33(7):974-984.
[2] Eisler R. Cyanide hazards to fish,wildlife,and invertebrates:a synoptic review[R]. Laurel:Patuxent Wildlife Research Center,1991.
[3] Eisler R,Wiemeyer S N. Cyanide hazards to plants and animals from gold mining and related w ater issues[J].Reviews of Environmental Contamination and Toxicology,2004,183(1):21-54.
[4]赵洪冬,顾帼华.氰化尾渣综合回收铜铅锌研究现状及展望[J].矿产综合利用,2013(5):1-4.(Zhao Hong-dong,Gu Guo-hua. Status and prospect of research on comprehensive recovering copper,lead and zinc from cyaniding residues[J]. Multipurpose Utilization of Mineral Resources,2013(5):1-4.)
[5]王宏军.超细粒氰化尾渣多金属浮选实验研究与实践[J].金属矿山,2003(7):50-52.(Wang Hong-jun. Research and practice of multiple-metal flotation from superfine cyanidation residue[J]. Metal Mine,2003(7):50-52.)
[6] Miettinen T,Ralston J,Fornasiero D. The limits of fine particle flotation[J]. Minerals Engineering,2010,23(5):420-437.
[7]贺政,赵明林,王洪杰.氰化尾渣中铅锌浮选影响因素及解决方案浅析[J].矿冶,2003,12(3):25-28.(He Zheng,Zhao Ming-lin,Wang Hong-jie. Superficial views on the factors affecting flotation of lead-zinc minerals in cyanide residue and the concerned solutions[J]. Mining&Metallurgy,2003,12(3):25-28.)
[8]周东琴.某氰化尾渣中金的浮选回收实验研究[J].有色矿冶,2009,25(1):15-17.(Zhou Dong-qin. The experiment study on recovering gold by flotation from a cyanide tailing[J]. Non-Ferrous Mining and Metallurgy,2009,25(1):15-17.)
[9] Ma Y W,Han Y X,Zhu Y M,et al. Flotation behaviors and mechanisms of chalcopyrite and galena after cyanide treatment[J]. Transactions of Nonferrous Metals Society of China,2016,26(12):3245-3252.
[10] Guo B,Peng Y J,Espinosa-Gomez R. Cyanide chemistry and its effect on mineral flotation[J]. Minerals Engineering,2014,66/67/68:25-32.
[11] Yang X L,Huang X,Qiu T S. Recovery of zinc from cyanide tailings by flotation[J]. Minerals Engineering,2015,84:100-105.
[12] Seke M D,Pistorius P C. Effect of cuprous cyanide,dry and w et milling on the selective flotation of galena and sphalerite[J]. Minerals Engineering,2006,19(1):1-11.
[13] Fu J,Chen K,Wang H,et al. Recovering molybdenite from ultrafine w aste tailings by oil agglomerate flotation[J].Minerals Engineering,2012,39(6):133-139.
[14] Valderrama L,Rubio J. High intensity conditioning and the carrier flotation of gold fine particles[J]. International Journal of Mineral Processing,1998,52(4):273-285.
[15] Moses L B,Petersen F W. Flotation as a separation technique in the coal gold agglomeration process[J]. Minerals Engineering,2000,13(3):255-264.
[2] Eisler R. Cyanide hazards to fish,wildlife,and invertebrates:a synoptic review[R]. Laurel:Patuxent Wildlife Research Center,1991.
[3] Eisler R,Wiemeyer S N. Cyanide hazards to plants and animals from gold mining and related w ater issues[J].Reviews of Environmental Contamination and Toxicology,2004,183(1):21-54.
[4]赵洪冬,顾帼华.氰化尾渣综合回收铜铅锌研究现状及展望[J].矿产综合利用,2013(5):1-4.(Zhao Hong-dong,Gu Guo-hua. Status and prospect of research on comprehensive recovering copper,lead and zinc from cyaniding residues[J]. Multipurpose Utilization of Mineral Resources,2013(5):1-4.)
[5]王宏军.超细粒氰化尾渣多金属浮选实验研究与实践[J].金属矿山,2003(7):50-52.(Wang Hong-jun. Research and practice of multiple-metal flotation from superfine cyanidation residue[J]. Metal Mine,2003(7):50-52.)
[6] Miettinen T,Ralston J,Fornasiero D. The limits of fine particle flotation[J]. Minerals Engineering,2010,23(5):420-437.
[7]贺政,赵明林,王洪杰.氰化尾渣中铅锌浮选影响因素及解决方案浅析[J].矿冶,2003,12(3):25-28.(He Zheng,Zhao Ming-lin,Wang Hong-jie. Superficial views on the factors affecting flotation of lead-zinc minerals in cyanide residue and the concerned solutions[J]. Mining&Metallurgy,2003,12(3):25-28.)
[8]周东琴.某氰化尾渣中金的浮选回收实验研究[J].有色矿冶,2009,25(1):15-17.(Zhou Dong-qin. The experiment study on recovering gold by flotation from a cyanide tailing[J]. Non-Ferrous Mining and Metallurgy,2009,25(1):15-17.)
[9] Ma Y W,Han Y X,Zhu Y M,et al. Flotation behaviors and mechanisms of chalcopyrite and galena after cyanide treatment[J]. Transactions of Nonferrous Metals Society of China,2016,26(12):3245-3252.
[10] Guo B,Peng Y J,Espinosa-Gomez R. Cyanide chemistry and its effect on mineral flotation[J]. Minerals Engineering,2014,66/67/68:25-32.
[11] Yang X L,Huang X,Qiu T S. Recovery of zinc from cyanide tailings by flotation[J]. Minerals Engineering,2015,84:100-105.
[12] Seke M D,Pistorius P C. Effect of cuprous cyanide,dry and w et milling on the selective flotation of galena and sphalerite[J]. Minerals Engineering,2006,19(1):1-11.
[13] Fu J,Chen K,Wang H,et al. Recovering molybdenite from ultrafine w aste tailings by oil agglomerate flotation[J].Minerals Engineering,2012,39(6):133-139.
[14] Valderrama L,Rubio J. High intensity conditioning and the carrier flotation of gold fine particles[J]. International Journal of Mineral Processing,1998,52(4):273-285.
[15] Moses L B,Petersen F W. Flotation as a separation technique in the coal gold agglomeration process[J]. Minerals Engineering,2000,13(3):255-264.