新疆某铜镍硫化矿选矿工艺研究
|
摘要
新疆瑞伦某铜镍硫化矿原矿含铜0.14%,含镍0.51%,属于高镍低铜硫化铜镍矿。原矿中铜品位较低,同时含有大量易泥化的滑石、蛇纹石等脉石矿物,给该铜镍矿的高效回收带来不利影响。为高效开发利用该铜镍硫化矿石,进行了系统的选矿工艺研究。实验室小型闭路试验结果表明:在磨矿细度为-74μm占75%,以碳酸钠为pH调整剂,硫酸铜为活化剂,水玻璃和CMC为抑制剂,Z-200、丁铵、丁黄和戊黄为捕收剂的条件下,经2粗4精3扫铜镍混合浮选,铜镍混合精矿以石灰为pH调整剂、Z-200为捕收剂、BK-204为起泡剂,可获得含铜26.12%、含镍0.55%,铜回收率76.49%、镍回收率0.44%的铜精矿,含镍10.42%、含铜0.39%,镍回收率73.14%、铜回收率9.97%,MgO降至5.88%的镍精矿。试验解决了镍精矿中氧化镁杂质含量较高的问题,提高了精矿质量,可以为现场生产提供理论依据。
The raw ore of Xinjiang Ruilun copper-nickel ore contains 0.14% copper and 0.51% nickel, belonging to the high nickel and low copper sulfide copper-nickel ore. The copper grade in the ore is relatively low, and contains a large number of gangue minerals such as talc and serpentine which are easily muddy, which adversely affects the efficient recovery of the copper-nickel sulfide ore. In order to efficiently develop and utilize the copper-nickel sulfide ore, a systematic beneficiation process was carried out. The laboratory closed-circuit test results show that: the fineness of grinding is-74 μm, accounting for 75%, sodium carbonate is used as pH regulator, copper sulfate is used as activator, and sodium silicate and CMC are depressant. Z-200, ammonium butyl aerofloat, butyl xanthate and amyl xanthate are the collectors, after two roughing, four cleaning, three scavenging copper-nickel mixed flotation, copper-nickel mixed concentrate with lime as pH regulator, Z-200 as collector, BK-204 as foaming agent. Copper concentrate containing 26.12% copper, 0.55% nickel, 76.49% copper recovery and 0.44% nickel recovery, nickel concentrate containing 10.42% nickel, 0.39% copper, 73.14% nickel recovery, and 9.97%copper recovery was obtained. The MgO is reduced to 5.88% in nickel concentrate. It solves the problem of high content of magnesium oxide impurities in nickel concentrate, improves the quality of concentrate and provides theoretical basis for onsite production.
The raw ore of Xinjiang Ruilun copper-nickel ore contains 0.14% copper and 0.51% nickel, belonging to the high nickel and low copper sulfide copper-nickel ore. The copper grade in the ore is relatively low, and contains a large number of gangue minerals such as talc and serpentine which are easily muddy, which adversely affects the efficient recovery of the copper-nickel sulfide ore. In order to efficiently develop and utilize the copper-nickel sulfide ore, a systematic beneficiation process was carried out. The laboratory closed-circuit test results show that: the fineness of grinding is-74 μm, accounting for 75%, sodium carbonate is used as pH regulator, copper sulfate is used as activator, and sodium silicate and CMC are depressant. Z-200, ammonium butyl aerofloat, butyl xanthate and amyl xanthate are the collectors, after two roughing, four cleaning, three scavenging copper-nickel mixed flotation, copper-nickel mixed concentrate with lime as pH regulator, Z-200 as collector, BK-204 as foaming agent. Copper concentrate containing 26.12% copper, 0.55% nickel, 76.49% copper recovery and 0.44% nickel recovery, nickel concentrate containing 10.42% nickel, 0.39% copper, 73.14% nickel recovery, and 9.97%copper recovery was obtained. The MgO is reduced to 5.88% in nickel concentrate. It solves the problem of high content of magnesium oxide impurities in nickel concentrate, improves the quality of concentrate and provides theoretical basis for onsite production.
引文
[1]傅雷,仲冰.中国矿产资源现状与思考[J].资源与产业,2008,10(1):83-86.Fu Lei,Zhong Bing.The status quo and thinking of mineral resources in China[J].Resources&Industries,2008,10(1):83-86.
[2]胡显智,张文彬.铜镍矿浮选精矿降镁研究与实践进展[J].有色矿冶,2003(1):22-25.Hu Xianzhi,Zhang Wenbin.Research progress and practice of magnesium reduction in copper-nickel flotation concentrate[J].Non-ferrous Mining and Metallurgy,2003(1):22-25.
[3]张亚辉,孟凡东,孙传尧.铜镍硫化浮选过程中Mg0脉石矿物的抑制途径探析[J].矿冶,2012,21(2):1-5.Zhang Yahui,Meng Fandong,Sun Chuanyao.Analysis of the inhibition path of MgO gangue minerals in the process of copper-nickel vulcanization flotation[J].Mining&Metallurgy,2012,21(2):1-5.
[4]邢方丽,肖宝清,王中明.铜镍矿铜镍分离技术研究进展[J].矿冶,2010,19(1):25-32.Xing Fangli,Xiao Baoqing,Wang Zhongming.Research progress on copper-nickel separation technology of copper-nickel ore[J].Mining&Metallurgy,2010,19(1):25-32.
[5]张秀品,戴惠新.某镍矿选矿降镁研究探讨[J].云南冶金,2006,35(3):12-17.Zhang Xiupin,Dai Huixin.Discussion on magnesium reduction in a nickel ore dressing[J].Yunnan Metallurgy,2006,35(3):12-17.
[6]刘明宝,印万忠.中国硫化镍矿和红土镍矿资源现状及利用技术研究[J].有色金属工程,2011,21(4):25-28.Liu Mingbao,Yin Wanzhong.Study on the status quo and utilization technology of nickel sulfide ore and laterite nickel ore resources in China[J].Nonferrous Metals Engineering,2011,21(4):25-28.
[7]胡熙庚.有色金属硫化矿选矿[M].北京:冶金工业出版社,1987:42-64.Hu Xigeng.Non-ferrous Metal Sulfide Ore Dressing[M].Beijing:Metallurgical Industry Press,1987:42-64.
[8]李志茂,朱形,吴家正.镍资源的利用与镍铁产业的发展[J].中国有色冶金,2009(1):29-32.Li Zhimao,Zhu Xing,Wu Jiazheng.The utilization of nickel resources and the development of nickel iron industry[J].China Nonferrous Metallurgy,2009(1):29-32.
[9]Hoogendam C W,Dekeizer A,Cohen Stuart M A,et al.Adsorption of cellulose derivatives on inorganic oxides[J].Colloids and Surfaces A:Physicochemical and Engineering Aspeets,1998(4):245-258.
[10]王虹,邓海波.蛇纹石对硫化铜镍矿浮选过程影响及其分离研究进展[J].有色矿冶,2008,8(4):19-22.Wang Hong,Deng Haibo.Research progress on the influence of serpentine on flotation process of copper sulphide ore and its separation[J].Non-Ferrous Mining and Metallurgy,2008,8(4):19-22.
[11]胡为柏.浮选[M].北京:冶金工业出版社,1989:24-25.Hu Weibai.Flotation[M].Beijing:Metallurgical Industry Press,1989:24-25.
[12]朱建光.捕收剂混合使用的协同效应[J].国外金属矿选矿,1995,32(10):34-38.Zhu Jianguang.Synergistic effect of mixed use of collectors[J].Foreign Metal Ore Dressing,1995,32(10):34-38.
[13]拉奥K H,福斯伯格.混合捕收剂浮选系统[J].国外选矿快报,1998(13):5-8.Rao K H,Fosberg.Mixed collector flotation system[J].Foreign Concentration Express,1998(13):5-8.
[2]胡显智,张文彬.铜镍矿浮选精矿降镁研究与实践进展[J].有色矿冶,2003(1):22-25.Hu Xianzhi,Zhang Wenbin.Research progress and practice of magnesium reduction in copper-nickel flotation concentrate[J].Non-ferrous Mining and Metallurgy,2003(1):22-25.
[3]张亚辉,孟凡东,孙传尧.铜镍硫化浮选过程中Mg0脉石矿物的抑制途径探析[J].矿冶,2012,21(2):1-5.Zhang Yahui,Meng Fandong,Sun Chuanyao.Analysis of the inhibition path of MgO gangue minerals in the process of copper-nickel vulcanization flotation[J].Mining&Metallurgy,2012,21(2):1-5.
[4]邢方丽,肖宝清,王中明.铜镍矿铜镍分离技术研究进展[J].矿冶,2010,19(1):25-32.Xing Fangli,Xiao Baoqing,Wang Zhongming.Research progress on copper-nickel separation technology of copper-nickel ore[J].Mining&Metallurgy,2010,19(1):25-32.
[5]张秀品,戴惠新.某镍矿选矿降镁研究探讨[J].云南冶金,2006,35(3):12-17.Zhang Xiupin,Dai Huixin.Discussion on magnesium reduction in a nickel ore dressing[J].Yunnan Metallurgy,2006,35(3):12-17.
[6]刘明宝,印万忠.中国硫化镍矿和红土镍矿资源现状及利用技术研究[J].有色金属工程,2011,21(4):25-28.Liu Mingbao,Yin Wanzhong.Study on the status quo and utilization technology of nickel sulfide ore and laterite nickel ore resources in China[J].Nonferrous Metals Engineering,2011,21(4):25-28.
[7]胡熙庚.有色金属硫化矿选矿[M].北京:冶金工业出版社,1987:42-64.Hu Xigeng.Non-ferrous Metal Sulfide Ore Dressing[M].Beijing:Metallurgical Industry Press,1987:42-64.
[8]李志茂,朱形,吴家正.镍资源的利用与镍铁产业的发展[J].中国有色冶金,2009(1):29-32.Li Zhimao,Zhu Xing,Wu Jiazheng.The utilization of nickel resources and the development of nickel iron industry[J].China Nonferrous Metallurgy,2009(1):29-32.
[9]Hoogendam C W,Dekeizer A,Cohen Stuart M A,et al.Adsorption of cellulose derivatives on inorganic oxides[J].Colloids and Surfaces A:Physicochemical and Engineering Aspeets,1998(4):245-258.
[10]王虹,邓海波.蛇纹石对硫化铜镍矿浮选过程影响及其分离研究进展[J].有色矿冶,2008,8(4):19-22.Wang Hong,Deng Haibo.Research progress on the influence of serpentine on flotation process of copper sulphide ore and its separation[J].Non-Ferrous Mining and Metallurgy,2008,8(4):19-22.
[11]胡为柏.浮选[M].北京:冶金工业出版社,1989:24-25.Hu Weibai.Flotation[M].Beijing:Metallurgical Industry Press,1989:24-25.
[12]朱建光.捕收剂混合使用的协同效应[J].国外金属矿选矿,1995,32(10):34-38.Zhu Jianguang.Synergistic effect of mixed use of collectors[J].Foreign Metal Ore Dressing,1995,32(10):34-38.
[13]拉奥K H,福斯伯格.混合捕收剂浮选系统[J].国外选矿快报,1998(13):5-8.Rao K H,Fosberg.Mixed collector flotation system[J].Foreign Concentration Express,1998(13):5-8.