梅山矿业硫精矿再选提纯试验
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摘要
梅山矿业公司选铁过程产生的副产品硫精矿硫品位为30.53%,主要金属矿物有黄铁矿(磁黄铁矿)、磁铁矿、赤铁矿、菱铁矿,脉石矿物有白云石、方解石等碳酸盐矿物及绿泥石、石英等硅酸盐矿物。为提高硫精矿质量,增加硫精矿附加值,对现场产生的的硫精矿进行了再选提纯研究。结果表明:采用1粗1精2扫、精选尾矿与扫选精矿混合后1次精选闭路流程,可以获得产率为76.71%、硫品位为39.62%、杂质Mg O含量为0.41%、硫回收率为97.11%的高纯硫精矿。
Sulphur concentrate produced in Meishan Mining Company is the subsidiary products on iron beneficiation process. Sulphur grade of the concentrate is 30. 53%. Main metallic minerals in sulphur are pyrite( pyrrhotite),magnetite,hematite,siderite,gangue minerals are mainly carbonate minerals( such as dolomite,calcite) and silicate minerals( such as chlorite,quartz). To increase the quality of concentrate and increase the additional value,reconcentration purification experiment was conducted on the on-site sulphur concentrate. The results indicated that: Through one roughing-one cleaning-two scavenging,and tailing of cleaning and concentrate of scavenging mined and through one stage cleaning closed circuit process,high pure sulphur concentrate with yield rate of 76. 71%,sulfur grade of 39. 62%,impurity Mg O content of 0. 41%,sulfur recovery of 97. 11% was obtained.
Sulphur concentrate produced in Meishan Mining Company is the subsidiary products on iron beneficiation process. Sulphur grade of the concentrate is 30. 53%. Main metallic minerals in sulphur are pyrite( pyrrhotite),magnetite,hematite,siderite,gangue minerals are mainly carbonate minerals( such as dolomite,calcite) and silicate minerals( such as chlorite,quartz). To increase the quality of concentrate and increase the additional value,reconcentration purification experiment was conducted on the on-site sulphur concentrate. The results indicated that: Through one roughing-one cleaning-two scavenging,and tailing of cleaning and concentrate of scavenging mined and through one stage cleaning closed circuit process,high pure sulphur concentrate with yield rate of 76. 71%,sulfur grade of 39. 62%,impurity Mg O content of 0. 41%,sulfur recovery of 97. 11% was obtained.
引文
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[2]Abraitis P K,Pattrick R A D,Vaughan D J.Variations in the compositional,textural and electrical properties of natural pyrite:a review[J].International Journal of Mineral Processing,2004,74(19):41-59.
[3]邓海波,胡岳华.我国有色金属矿浮选技术进展[J].国外金属矿选矿,2001(4):23-26.Deng Haibo,Hu Yuehua.The Chinese nonferrous metals flotation technology progress[J].Metallic Ore Dressing Abroad,2001(4):23-26.
[4]余礼扬.黄铁矿对铅锌硫硫化矿浮选工艺的影响[J].湖南有色金属,1992(4):219-221.Yu Liyang.Effect of flotation technology on lead zinc sulphide ore by pyrite[J].Hunan Nonferrous Metals,1992(4):219-221.
[5]何桂春,吴艺鹏.不同矿床伴生黄铁矿的物性特征及可浮性研究[J].金属矿山,2012(8):73-75.He Guichun,Wu Yipeng.Study of physical property and floatability associated pyrite in different ore deposit[J].Metal Mine,2012(8):73-75.
[6]于宏东,孙传尧.不同成因黄铁矿的物性差异及浮游性研究[J].中国矿业大学学报,2010(5):758-764.Yu Hongdong,Sun Chuanyao.Physical property difference and floatability study on different types of pyrite[J].Journal of China University of Mining&Technology,2010(5):758-764.
[7]谢珉,邓文辉.黄铁矿的可浮性研究及生产实践[J].北京矿冶研究总院学报,1992(7):32-37.Xie Min,Deng Wenhui.Study of floatability and practice on pyrite[J].Journal of Beijing General Research Institute of Mining and Metallurgy,1992(7):32-37.
[8]胡淼,彭会清,周海欢,等.提高江西某高硫铜矿铜回收率试验[J].金属矿山,2012(7):76-78.Hu Miao,Peng Huiqing,Zhou Haihuan,et al.Experiment on improving copper recovery of a high-sulfur copper mine from Jiangxi[J].Metal Mine,2012(7):76-78.
[9]卜显忠,李广,杨燕青,等.中矿再磨提高某矿山选铜回收率的试验研究[J].武汉理工大学学报,2010(8):78-83.Bu Xianzhong,Li Guang,Yang Yanqing,et al.Experiment study of improved copper recoveries from the mine by regrinding of middlings[J].Journal of Wuhan University of Science and Technology,2010(8):78-83.
[10]段希祥.完善磨矿过程提高磨矿及选别效率的研究[J].云南冶金,2002(3):45-51.Duan Xixiang.Research on improvement of ore grinding and separation efficiency in milling process[J].Yunnan Metallurgy,2002(3):45-51.