微细粒钛铁矿浮选捕收剂改性试验研究
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摘要
四川攀枝花存储着丰富的钒钛磁铁矿资源,随着矿山进入中深部开采,矿石性质发生了显著变化。原有捕收剂由于适应性较低,在现场生产中普遍存在品位提升困难、回收率偏低等问题,已经难以满足现场生产要求;因此新型钛铁矿捕收剂的研发对提升攀西地区钛铁矿资源的利用率具有重要的意义。在不改变现场原有生产条件的情况下进行了浮选试验条件的优化,高效捕收剂的筛选,通过不同比例含量的月桂酸、塔尔油和十二烷基苯磺酸钠对油酸钠的改性,与现场原有药剂的粗选指标对比可知,十二烷基苯磺酸钠所占比例为10%的组合捕收剂能有效提升钛铁矿粗选回收率。通过对某原矿含11.81%Ti O2的钛铁矿进行试验,开路实验表明在精矿品位相近的情况下,新型捕收剂可显著提升钛铁矿回收率10%以上。闭路试验表明,采用预先脱硫-一粗三精一扫-中矿顺序返回的工艺流程,采用现场原有药剂,可以得到Ti O2品位为48.23%,回收率为49.48%的钛铁矿精矿产品;新型捕收剂可以得到Ti O2品位为47.36%,回收率为61.34%的合格精矿产品,较现场原有药剂回收率提高了11.86%。这对新型钛铁矿浮选药剂的开发和应用具有借鉴作用。
Panzhihua,located in Sichuan Province,has abundant resources of vanadium titanium magnetite. As mines are exploited in deep mining,there are significant changes in the nature of ores. Due to the low adaptability of the original collectors,during the process of field production,there are problems such as the difficulty in promoting the grade and the low recovery. It has been difficult to meet the requirements of the field production. Therefore,it is of great significance to develop new collectors for the purpose of high recovery of ilmenite resources in Panzhihua district. In the case of not changing the original production conditions of the site,the optimum flotation test conditions and the screening of high efficient collectors were conducted. After comparison with the field agents of flotation recovery using collectors modified by laurel acid,tar oil and SDBS,it was found that the combined collectors with a 10% proportion of SDBS could work efficiently during the processing of ilmenite flotation. Experiments were conducted using ores containing11. 81% Ti O2 and the results of open circuit tests showed that combined collectors with a 10% proportion of SDBS could increase the flotation recovery by over 10% in the case of similar grade. The closed circuit tests were conducted adopting the technological process that pre-desulfurization,one roughing,three cleaning,one scavenging and the middlings returned in order. The closed circuit results showed that,using the field agents,the grade and recovery of concentrate products were 48. 23% and 49. 48%,respectively. At the same time,using SDBS modified collectors,the grade and recovery of concentrate products were 47. 36% and 61. 34%,respectively.The flotation recovery could be enhanced by 11. 86% and this could guide the new collectors development and application in the flotation field of refractory titanium ores.
Panzhihua,located in Sichuan Province,has abundant resources of vanadium titanium magnetite. As mines are exploited in deep mining,there are significant changes in the nature of ores. Due to the low adaptability of the original collectors,during the process of field production,there are problems such as the difficulty in promoting the grade and the low recovery. It has been difficult to meet the requirements of the field production. Therefore,it is of great significance to develop new collectors for the purpose of high recovery of ilmenite resources in Panzhihua district. In the case of not changing the original production conditions of the site,the optimum flotation test conditions and the screening of high efficient collectors were conducted. After comparison with the field agents of flotation recovery using collectors modified by laurel acid,tar oil and SDBS,it was found that the combined collectors with a 10% proportion of SDBS could work efficiently during the processing of ilmenite flotation. Experiments were conducted using ores containing11. 81% Ti O2 and the results of open circuit tests showed that combined collectors with a 10% proportion of SDBS could increase the flotation recovery by over 10% in the case of similar grade. The closed circuit tests were conducted adopting the technological process that pre-desulfurization,one roughing,three cleaning,one scavenging and the middlings returned in order. The closed circuit results showed that,using the field agents,the grade and recovery of concentrate products were 48. 23% and 49. 48%,respectively. At the same time,using SDBS modified collectors,the grade and recovery of concentrate products were 47. 36% and 61. 34%,respectively.The flotation recovery could be enhanced by 11. 86% and this could guide the new collectors development and application in the flotation field of refractory titanium ores.
引文
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[10]He G W.Industrial experiment on the flotation of fine grained titanium iron ore by using emulsified tar oil in Panzhihua[J].Journal of Guangdong Nonferrous Metals,2000,10(2):92.(何国伟.用乳化塔尔油浮选攀枝花微细粒级钛铁矿的工业试验[J].广东有色金属学报,2000,10(2):92.)
[11]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.
[12]Zhu Y,Zhang G,Feng Q,Yan D,Wang W.Effect of surface dissolution on flotation separation of fine ilmenite from titanaugite[J].Transactions of Nonferrous Metals Society of China,2011,21(5):1149.
[13]Cui Z,Liu Q,Etsell T H.Magnetic properties of ilmenite,hematite and oilsand minerals after roasting[J].Minerals Engineering,2002,15(12):1121.
[14]Han G H,Jiang T,Zhang Y B,Huang Y F,Li G H.High-temperature oxidation behavior of vanadium,titanium-bearing magnetite pellet[J].Journal of Iron and Steel Research,International,2011,18(8):14.
[15]Hou T,Zhang Z,Ye X,Encarnacion J,Reichow M K.Noble gas isotopic systematics of Fe-Ti-V oxide ore-related mafic-ultramafic layered intrusions in the Panxi area,China:The role of recycled oceanic crust in their petrogenesis[J].Geochimica et Cosmochimica Acta,2011,75(22):6727.
[16]Zhang X,Liu D,Fang J,Xu J.Study on influence of residual magnetite in Panzhihua ilmenite flotation[J].Procedia Earth and Planetary Science,2011,2:83.
[17]Haverkamp R G,Kruger D,Rajashekar R.The digestion of New Zealand ilmenite by hydrochloric acid[J].Hydrometallurgy,2016,163:198.
[18]Da He X.Research and commercialisation of treatment of fine ilmenite with SLon magnetic separators[J].Physical Separation in Science and Engineering,2000,10(2):121.
[19]Yu D W,Zhong Z Y.Non inhibitor flotation of primary fine grained titanium iron ore[J].Metallic Ore Dressing Abroad,2000,37(3):24.(余德文,钟志勇.原生细粒钛铁矿无抑制剂浮选[J].国外金属矿选矿,2000,37(3):24.)
[20]Zhou J G,Wang H B,Zeng L G.The recovery of the fine particle ilmenite in Panzhihua[J].Journal of Guangdong Nonferrous Metals,2006,16(1):1.(周建国,王洪彬,曾礼国.攀枝花微细粒级钛铁矿的回收[J].广东有色金属学报,2006,16(1):1.)
[2]Wu X,Zhang J.Distribution and characteristics of titanium resources in China[J].Titanium Industry Progress,2006,23(6):8.(吴贤,张健.中国的钛资源分布及特点[J].钛工业进展,2006,23(6):8.)
[3]Zhao J H,Zhou M F.Geochemistry of Neoproterozoic mafic intrusions in the Panzhihua district(Sichuan Province,SW China):implications for subduction-related metasomatism in the upper mantle[J].Precambrian Research,2007,152(1):27.
[4]Zhang X P,Shao G Q,Wu P R,Bai X M.Study on the flotation of lead-zinc oxide ore at low temperature[J].Mining&Metallurgy,2003,12(1):21.(张心平,邵广全,吴沛然,白秀梅.氧化铅锌矿石低温浮选工艺研究[J].矿冶,2003,12(1):21.)
[5]Song Q,Tsai S C.Flotation of ilmenite using benzyl arsonic acid and acidified sodium silicate[J].International Journal of Mineral Processing,1989,26(1):111.
[6]Li F,Zhong H,Zhao G,Wang S,Liu G.Adsorption ofα-hydroxyoctyl phosphonic acid to ilmenite/water interface and its application in flotation[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2016,490:67.
[7]Hu Y P,Zhang Y J.Research of flotation of fine ilmenite and titanaugite by using mixed collectors[J].Nonferrous Metals,1994,46(3):31.(胡永平,张毅谨.混合捕收剂浮选细粒钛铁矿的研究[J].有色金属,1994,46(3):31.)
[8]Jiang Q M,Dai Z L.Performance of mixed fatty acids in separating scheelite from fluorite and calcite[J].Mining and Metallurgical Engineering,2012,32(2):42.(江庆梅,戴子林.混合脂肪酸在白钨矿与萤石,方解石分离中的作用[J].矿冶工程,2012,32(2):42.)
[9]Li D L,Peng R.Study on the collectors of collophanite and calcite[J].Industrial Minerals&Processing,1991,20(5):22.(李冬莲,彭儒.胶磷矿,方解石捕收剂研究[J].化工矿山技术,1991,20(5):22.)
[10]He G W.Industrial experiment on the flotation of fine grained titanium iron ore by using emulsified tar oil in Panzhihua[J].Journal of Guangdong Nonferrous Metals,2000,10(2):92.(何国伟.用乳化塔尔油浮选攀枝花微细粒级钛铁矿的工业试验[J].广东有色金属学报,2000,10(2):92.)
[11]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.
[12]Zhu Y,Zhang G,Feng Q,Yan D,Wang W.Effect of surface dissolution on flotation separation of fine ilmenite from titanaugite[J].Transactions of Nonferrous Metals Society of China,2011,21(5):1149.
[13]Cui Z,Liu Q,Etsell T H.Magnetic properties of ilmenite,hematite and oilsand minerals after roasting[J].Minerals Engineering,2002,15(12):1121.
[14]Han G H,Jiang T,Zhang Y B,Huang Y F,Li G H.High-temperature oxidation behavior of vanadium,titanium-bearing magnetite pellet[J].Journal of Iron and Steel Research,International,2011,18(8):14.
[15]Hou T,Zhang Z,Ye X,Encarnacion J,Reichow M K.Noble gas isotopic systematics of Fe-Ti-V oxide ore-related mafic-ultramafic layered intrusions in the Panxi area,China:The role of recycled oceanic crust in their petrogenesis[J].Geochimica et Cosmochimica Acta,2011,75(22):6727.
[16]Zhang X,Liu D,Fang J,Xu J.Study on influence of residual magnetite in Panzhihua ilmenite flotation[J].Procedia Earth and Planetary Science,2011,2:83.
[17]Haverkamp R G,Kruger D,Rajashekar R.The digestion of New Zealand ilmenite by hydrochloric acid[J].Hydrometallurgy,2016,163:198.
[18]Da He X.Research and commercialisation of treatment of fine ilmenite with SLon magnetic separators[J].Physical Separation in Science and Engineering,2000,10(2):121.
[19]Yu D W,Zhong Z Y.Non inhibitor flotation of primary fine grained titanium iron ore[J].Metallic Ore Dressing Abroad,2000,37(3):24.(余德文,钟志勇.原生细粒钛铁矿无抑制剂浮选[J].国外金属矿选矿,2000,37(3):24.)
[20]Zhou J G,Wang H B,Zeng L G.The recovery of the fine particle ilmenite in Panzhihua[J].Journal of Guangdong Nonferrous Metals,2006,16(1):1.(周建国,王洪彬,曾礼国.攀枝花微细粒级钛铁矿的回收[J].广东有色金属学报,2006,16(1):1.)