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Metal Mine ›› 2015, Vol. 44 ›› Issue (12): 88-91.

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Study on Reconcentration Purification of Sulfur Concentrate in Meishan Mine

Liu Anping,Zhang Zugang,Yi Deqiang,Liu Yongzhao   

  1. Baosteel Group Meishan Mining Co.,Ltd.,Nanjing 210041,China
  • Online:2015-12-15 Published:2016-03-09

Abstract: 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 MgO content of 0.41%,sulfur recovery of 97.11% was obtained.

Key words: High pure sulphur concentrate, Flotation, Regrinding, MgO