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金属矿山 ›› 2016, Vol. 45 ›› Issue (09): 92-95.

• 矿物工程 • 上一篇    下一篇

湿法预处理—硫酸浸出国外某氧化铜矿石

翟旭东1,2,李洁1,2,王重阳1,2,向虹1,2   

  1. 1.西安西北有色地质研究院有限公司,陕西 西安 710054;〖〗2.陕西省矿产资源综合利用工程技术研究中心,陕西 西安 710054
  • 出版日期:2016-09-15 发布日期:2016-10-18

Hydro-pretreatment Sulfuric-acid-leaching on a Foreign Copper Oxide Ore

Zhai Xudong1,2,Li Jie1,2,Wang Chongyang1,2,Xiang Hong1,2   

  1. 1.Xi′an Northwest Geological Institute of Nonferrous Metals Co.,Ltd.,Xi′an 710054,China;2.Engineering & Technology Center for Comprehensive Utilization of Mineral Resources in Shaanxi Province,Xi′an 710054,China
  • Online:2016-09-15 Published:2016-10-18

摘要: 国外某氧化铜矿石中的铜主要以假孔雀石、磷铜铁矿和绿磷铜铁矿等含铜矿物形式存在,铜品位为2.07%,氧化率为82.86%,其中结合率高达51.91%。为高效回收矿石中的铜,对K1湿法预处理—硫酸浸出工艺条件进行了研究。结果表明,预处理阶段的磨矿细度为-74 μm占60%、矿浆浓度为35%、K1浓度为9%、温度为85 ℃、时间为1 h,硫酸酸浸的矿浆浓度为25%、硫酸浓度为13.8%、温度为50 ℃、时间为3 h,对应的铜浸出率为87.44%。

关键词: 结合氧化铜, 湿法预处理, 酸浸

Abstract: Main copper minerals in a foreign copper oxide are pseudo-malachite,chalcosiderite and hentschelite,with Cu grade of 2.07%,oxidation rate of 82.86%,binding rate of 51.91%. Hydro-pretreatment with K1- sulfuric acid leaching process was conducted to high effectively recovery copper from the ore. The results showed that,grinding fineness of pretreated stage is 60% -74 μm,with pulp density of 35%,K1 concentration of 9% at 85 ℃ for 1 h,pulp concentration of sulfuric acid was 25%,sulfuric acid concentration of 13.8% at 50 ℃ for 3 h,the corresponding copper leaching rate is 87.44%.

Key words: Conjunction oxidized copper, Hydro-pretreatment, Acid leaching