低品位铍矿浸出工艺探索试验
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摘要
针对Be含量为0.42%的铍原矿,进行了硫酸用量、预处理温度、搅拌浸出固液比等条件对铍浸出率的影响试验。结果表明,铍原矿浸出的优化工艺参数为:预处理温度280℃、铍矿石与浓硫酸质量比1∶1.5、固液比1∶2,此时铍浸出率达到98.2%。该工艺处理温度低,降低了能耗,为铍原矿的开发利用提供了可选途径。
With beryllium ore containing 0. 42% Be as raw material, the effects of sulfuric acid consumption,pretreatment temperature and solid / liquid ratio on beryllium recovery by agitation leaching were investigated,and the optimized leaching parameters were obtained. The leaching rate of beryllium reached 98. 20% after beryllium ore was pretreated at the temperature of 280 ℃,and leached with ore and sulfuric acid at a mass ratio of 1∶ 1. 5 and solid / liquid ratio at 1 ∶ 2. This processing technique doesn' t require high temperature,resulting in the reduction in the energy consumption,which can provide an alternative way for the exploitation of beryllium ore.
With beryllium ore containing 0. 42% Be as raw material, the effects of sulfuric acid consumption,pretreatment temperature and solid / liquid ratio on beryllium recovery by agitation leaching were investigated,and the optimized leaching parameters were obtained. The leaching rate of beryllium reached 98. 20% after beryllium ore was pretreated at the temperature of 280 ℃,and leached with ore and sulfuric acid at a mass ratio of 1∶ 1. 5 and solid / liquid ratio at 1 ∶ 2. This processing technique doesn' t require high temperature,resulting in the reduction in the energy consumption,which can provide an alternative way for the exploitation of beryllium ore.
引文
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[4]成泉辉.从硅铍钇矿中提取工业氧化铍及混合稀土[J].稀有金属与硬质合金,1999(3):49-53.
[5]朱晓波,张一敏,刘涛.石煤活化焙烧提钒试验及机制研究[J].稀有金属,2013,37(2):283-288.
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[7]郭新川.酸化浸出控制条件对氧化铍生产的影响[J].新疆有色金属,2011(S1):102-103.
[8]成泉辉.铍矿中的氟在工业氧化铍冶炼中的行为和影响[J].稀有金属与硬质合金,2004(3):29-32.
[9]李中,王清良,李乾,等.氢氧化铍中硫酸根去除试验研究[J].矿冶工程,2014(4):83-86.
[10]全俊.提高工业氧化铍产品质量的工艺措施[J].稀有金属与硬质合,2006,34(2):61-63.
[11]李诚星.提高工业氧化铍冶炼金属回收率的途径[J].稀有金属与硬质合,2005,33(1):52-54.