人造矿物黑钛石的浮选行为及水杨羟肟酸的吸附机理（英文）
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摘要
浮选经常被应用于分离天然的有用矿物和脉石矿物,但是很少有研究聚焦于人造矿物的浮选。黑钛石作为钛渣中的主要矿物,是一种典型的人造矿物,可以通过浮选来富集。本文研究了黑钛石在水杨羟肟酸溶液中的浮选行为及吸附机理,重点研究了pH和水杨羟肟酸用量对黑钛石浮选性能的影响。纯矿物浮选试验结果表明,以水杨羟肟酸为捕收剂,黑钛石最佳的浮选区间是7 Flotation is often employed to separate valuable natural minerals and gangue minerals. However, few studies have been conducted on artificial mineral flotation. Anosovite, the primary mineral in titanium slag, is a typical artificial mineral that can be enriched by flotation. In the present work, flotation behavior and adsorption mechanism of anosovite in salicylhydroxamic acid(SHA) solution were studied. The influence of pH and SHA dosage on anosovite flotability was investigated. Micro-flotation test results show that a pH range of 7-8.5 is available for SHA to collect anosovite. A maximum recovery of 93.26% can be obtained with SHA dosage of only 4×10~(-5) mol/L. In addition, TOC,zeta potential, FTIR, SEM-EDS, and XPS analyses were used to study the adsorption mechanism. Results demonstrated that SHA adsorption is governed by chemisorption. XPS studies further suggested that chemical adsorption occurred at the Ti sites on the anosovite surface.
引文
[1] SAMAL S. Synthesis and characterization of titanium slag from ilmenite by thermal plasma processing[J]. JOM, 2016,68(9):1-10.
[2] XUE Ya-zhou, WANG Xue-feng, WANG Hai-jun, LI Wen-chao. On comprehensive utilization of vanadiumtitanium magnetite resources in Panzhihua-Xichang region of Sichuan province[J]. Chinese Land Resources Economy,2017, 30(4):9-13.(in Chinese)
[3] ZHANG Ying, FANG Zhi-gang Zak, XIA Yang, HUANG Zhe, LEFLER H, ZHAGN Tuo-yang, SUN Pei, FREE M L,GUO Jun. A novel chemical pathway for energy efficient production of Ti metal from upgraded titanium slag[J].Chemical Engineering Journal, 2016, 286:517-527.
[4] CHEN Xu-ling, HUANG Yun-song, FAN Xiao-hui, GAN Min. Oxidation roasting behavior and concretion properties of vanadium-titanium magnetite pellet[J]. Journal of Central South University:Science and Technology, 2016, 47(2):359-366.(in Chinese)
[5] SUI Li-li, ZHAI Yu-chun, MIAO Li-hua. Recovery of titania from high titanium slag by roasting method using concentrated sulfuric acid[J]. Rare Metals, 2015, 34(12):895-900.
[6] WAN He-li, XU Bao-qiang, DAI Yong-nian, YANG Bin,LIU Da-chun, SEN Wei. Preparation of titanium powders by calciothermic reduction of titanium dioxide[J]. Journal of Central South University, 2012, 19(9):2434-2439.
[7] CHO J, ROY S, SATHYAPALAN A, ZENG W. Purification of reduced upgraded titania slag by iron removal using mild acids[J]. Hydrometallurgy, 2016, 161:7-13.
[8] ZHENG Fu-qiang, CHEN Feng, GUO Yu-feng, JIANG Tao,TRAVYANOV A Y, QIU Guan-zhou. Kinetics of hydrochloric acid leaching of titanium from titaniumbearing electric furnace slag[J]. JOM, 2016, 68(5):1476-1484.
[9] LASHEEN T A. Soda ash roasting of titania slag product from Rosetta ilmenite[J]. Hydrometallurgy, 2008, 93(3, 4):124-128.
[10] SZCZES A, YAN Ying-di, CHIBOWSKI E, HOlYSZ L,BANACH M. Properties of natural and synthetic hydroxyapatite and their surface free energy determined by the thin-layer wicking method[J]. Applied Surface Science,2017,434:1232-1238.
[11] MA Jun-wei, SUI Zhi-tong, CHEN Bing-chen, NIE Yong-feng. Flotation behavior and mechanism on perovskite in Ti-bearing blast furnace slag[J]. Chinese Journal of Nonferrous Metals, 2002, 12(1):171-177.(in Chinese)
[12] WANG Wei-qing, ZHU Yang-ge, ZHANG Shi-qiu, DENG Jie, HUANG Yang, YAN Wu. Flotation behaviors of perovskite, titanaugite, and magnesium aluminate spinel using octyl hydroxamic acid as the collector[J]. Minerals,2017,7(8):134-152.
[13] MARABINI A M, BARBARO M. A study of the surface electrical properties of titanium oxide[J]. International Journal of Mineral Processing, 1980, 7(2):159-166.
[14] MEHDILO A, IRANNAJAD M, REZAI B. Effect of crystal chemistry and surface properties on ilmenite flotation behavior[J]. International Journal of Mineral Processing,2015, 137:71-81,
[15] GRASS V, ISTOMIN P, NAZAROVA L. X-ray diffraction refinement of the crystal structure of anosovite preparedfrom leucoxene[J]. Crystal Research and Technology, 2009,44(1):117-122.
[16] GREY I E, CRANSWICK L M D, LI C, WHITE T J,BURSILL L A. New M_3O_5-anatase intergrowth structures formed during low-temperature oxidation of anosovite[J].Journal of Solid State Chemistry, 2000, 150(1):128-138.
[17] XIROUCHAKIS D, SMIRNOV A, WOODY K, LINDSLEY D H, ANDERSEN F J. Thermodynamics and stability of pseudobrookite-type MgTi_2O_5(karrooite)[J]. American Mineralogist, 2002, 87(5, 6):658-667.
[18] QIN Wen-qing, REN Liu-yi, XU Yang-bao, WANG Pei-pei,MA Xi-hong. Adsorption mechanism of mixed salicylhydroxamic acid and tributyl phosphate collectors in fine cassiterite electro-flotation system[J]. Journal of Central South University, 2012, 19(6):1711-1717.
[19] FENG Qi-cheng, ZHAO Wen-juan, WEN Shu-ming, CAO Qin-bo. Activation mechanism of lead ions in cassiterite flotation with salicylhydroxamic acid as collector[J].Separation and Purification Technology, 2017, 178:193-199.
[20] ESKANDARLOO H, HASHEMPOUR M, VICENZO A,FRANZ S, BADIEI A, BEHNAJADY M A, BESTETTI M.High-temperature stable anatase-type TiO_2 nanotube arrays:A study of the structure-activity relationship[J]. Applied Catalysis B:Environmental, 2016, 185:119-132.
[21] HOANG S, BERGLUND S P, HAHN N T, BARD A J,MULLINS C B. Enhancing visible light photo-oxidation of water with TiO_2 nanowire arrays via cotreatment with H2 and NH3:Synergistic effects between Ti~(3+)and N[J]. Journal of the American Chemical Society, 2012,134:3659-3662.
[22] LIU Jian, DUAN Xiu-lan, ZHANG Yang, LI Zi-qing, YU Fa-peng, JIANG Huai-dong. Growth, electronic structure and properties of Rb_2Ti_(1.95)Yb_(0.05)(PO_4)_3 crystals[J]. Journal of Alloys&Compounds, 2016, 660:356-360.
[2] XUE Ya-zhou, WANG Xue-feng, WANG Hai-jun, LI Wen-chao. On comprehensive utilization of vanadiumtitanium magnetite resources in Panzhihua-Xichang region of Sichuan province[J]. Chinese Land Resources Economy,2017, 30(4):9-13.(in Chinese)
[3] ZHANG Ying, FANG Zhi-gang Zak, XIA Yang, HUANG Zhe, LEFLER H, ZHAGN Tuo-yang, SUN Pei, FREE M L,GUO Jun. A novel chemical pathway for energy efficient production of Ti metal from upgraded titanium slag[J].Chemical Engineering Journal, 2016, 286:517-527.
[4] CHEN Xu-ling, HUANG Yun-song, FAN Xiao-hui, GAN Min. Oxidation roasting behavior and concretion properties of vanadium-titanium magnetite pellet[J]. Journal of Central South University:Science and Technology, 2016, 47(2):359-366.(in Chinese)
[5] SUI Li-li, ZHAI Yu-chun, MIAO Li-hua. Recovery of titania from high titanium slag by roasting method using concentrated sulfuric acid[J]. Rare Metals, 2015, 34(12):895-900.
[6] WAN He-li, XU Bao-qiang, DAI Yong-nian, YANG Bin,LIU Da-chun, SEN Wei. Preparation of titanium powders by calciothermic reduction of titanium dioxide[J]. Journal of Central South University, 2012, 19(9):2434-2439.
[7] CHO J, ROY S, SATHYAPALAN A, ZENG W. Purification of reduced upgraded titania slag by iron removal using mild acids[J]. Hydrometallurgy, 2016, 161:7-13.
[8] ZHENG Fu-qiang, CHEN Feng, GUO Yu-feng, JIANG Tao,TRAVYANOV A Y, QIU Guan-zhou. Kinetics of hydrochloric acid leaching of titanium from titaniumbearing electric furnace slag[J]. JOM, 2016, 68(5):1476-1484.
[9] LASHEEN T A. Soda ash roasting of titania slag product from Rosetta ilmenite[J]. Hydrometallurgy, 2008, 93(3, 4):124-128.
[10] SZCZES A, YAN Ying-di, CHIBOWSKI E, HOlYSZ L,BANACH M. Properties of natural and synthetic hydroxyapatite and their surface free energy determined by the thin-layer wicking method[J]. Applied Surface Science,2017,434:1232-1238.
[11] MA Jun-wei, SUI Zhi-tong, CHEN Bing-chen, NIE Yong-feng. Flotation behavior and mechanism on perovskite in Ti-bearing blast furnace slag[J]. Chinese Journal of Nonferrous Metals, 2002, 12(1):171-177.(in Chinese)
[12] WANG Wei-qing, ZHU Yang-ge, ZHANG Shi-qiu, DENG Jie, HUANG Yang, YAN Wu. Flotation behaviors of perovskite, titanaugite, and magnesium aluminate spinel using octyl hydroxamic acid as the collector[J]. Minerals,2017,7(8):134-152.
[13] MARABINI A M, BARBARO M. A study of the surface electrical properties of titanium oxide[J]. International Journal of Mineral Processing, 1980, 7(2):159-166.
[14] MEHDILO A, IRANNAJAD M, REZAI B. Effect of crystal chemistry and surface properties on ilmenite flotation behavior[J]. International Journal of Mineral Processing,2015, 137:71-81,
[15] GRASS V, ISTOMIN P, NAZAROVA L. X-ray diffraction refinement of the crystal structure of anosovite preparedfrom leucoxene[J]. Crystal Research and Technology, 2009,44(1):117-122.
[16] GREY I E, CRANSWICK L M D, LI C, WHITE T J,BURSILL L A. New M_3O_5-anatase intergrowth structures formed during low-temperature oxidation of anosovite[J].Journal of Solid State Chemistry, 2000, 150(1):128-138.
[17] XIROUCHAKIS D, SMIRNOV A, WOODY K, LINDSLEY D H, ANDERSEN F J. Thermodynamics and stability of pseudobrookite-type MgTi_2O_5(karrooite)[J]. American Mineralogist, 2002, 87(5, 6):658-667.
[18] QIN Wen-qing, REN Liu-yi, XU Yang-bao, WANG Pei-pei,MA Xi-hong. Adsorption mechanism of mixed salicylhydroxamic acid and tributyl phosphate collectors in fine cassiterite electro-flotation system[J]. Journal of Central South University, 2012, 19(6):1711-1717.
[19] FENG Qi-cheng, ZHAO Wen-juan, WEN Shu-ming, CAO Qin-bo. Activation mechanism of lead ions in cassiterite flotation with salicylhydroxamic acid as collector[J].Separation and Purification Technology, 2017, 178:193-199.
[20] ESKANDARLOO H, HASHEMPOUR M, VICENZO A,FRANZ S, BADIEI A, BEHNAJADY M A, BESTETTI M.High-temperature stable anatase-type TiO_2 nanotube arrays:A study of the structure-activity relationship[J]. Applied Catalysis B:Environmental, 2016, 185:119-132.
[21] HOANG S, BERGLUND S P, HAHN N T, BARD A J,MULLINS C B. Enhancing visible light photo-oxidation of water with TiO_2 nanowire arrays via cotreatment with H2 and NH3:Synergistic effects between Ti~(3+)and N[J]. Journal of the American Chemical Society, 2012,134:3659-3662.
[22] LIU Jian, DUAN Xiu-lan, ZHANG Yang, LI Zi-qing, YU Fa-peng, JIANG Huai-dong. Growth, electronic structure and properties of Rb_2Ti_(1.95)Yb_(0.05)(PO_4)_3 crystals[J]. Journal of Alloys&Compounds, 2016, 660:356-360.