Efficient Recovery of the Combined Copper Resources from Copper Oxide Bearing Limonite Ore by Magnetic Separation and Leaching Technology
نویسندگان
چکیده
The reserve of the copper-oxide-bearing limonite ore (COBL ore) in Yulong Copper Co., Ltd. is up to 20 million tons with 1.79% copper content. characters resources COBL are high-proportioned oxidation state (99.98%) and combined (84.83%). oxide mainly limonite, which has a content more than 78%. Because high altitude average annual temperature 15 °C Tibet, fire leaching cannot be adopted. efficiency from using direct sulfuric acid only 40%, greatly influenced by time. Based on characteristics ore, novel method magnetic separation individual been proposed efficient recover resources. Experimental results show that concentrates tailings were obtained at 0.6 T yields 59.65% 40.35%, respectively. Due obvious properties difference tailings, process routes used treat them. concentrate was leached stirring for 3 days room (20 °C), tailing easily 4 h 40 °C. recovery total 72%, about 32% higher single ore. this study achieves environmentally friendly, low energy consumption, extraction refractory
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ژورنال
عنوان ژورنال: Minerals
سال: 2022
ISSN: ['2075-163X']
DOI: https://doi.org/10.3390/min12101258