Recovery of bismuth and antimony metals from pressure-leaching slag
来源期刊：Rare Metals2012年第1期
论文作者：ZHANG Baoa,LI Qiana,SHEN Wenqianb,and MIN Xiaoboa a School of Metallurgical Science and Engineering,Central South University,Changsha ,China b st Detachment,Tianjin Contingent of Chinese People’s Armed Police Force,Tianjin ,China
文章页码：102 - 106
摘 要：The leaching behavior of metals from a pressure-leaching slag was investigated using a desulphurization-leaching-hydrolysis process for the recovery of bismuth and antimony.Various parameters were studied,including the amount of acid added,temperature,time,addition of NaCl and solid-liquid ratio in the leaching process.The experimental results show that the contents of bismuth and antimony are mostly enriched in the process of kerosene desulphurization.More than 98% Sb and 96% Bi are extracted under the determined conditions.In the process of hydrolysis,the precipitation rates of bismuth and antimony are 97.80% and 94.59%,respectively.Under the optimum experimental conditions,the recovery rate of bismuth and antimony can be up to 95.80% and 90.80%,respectively.
ZHANG Baoa,LI Qiana,SHEN Wenqianb,and MIN Xiaoboa a School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China b 1st Detachment,Tianjin Contingent of Chinese People’s Armed Police Force,Tianjin 300222,China
摘 要：The leaching behavior of metals from a pressure-leaching slag was investigated using a desulphurization-leaching-hydrolysis process for the recovery of bismuth and antimony.Various parameters were studied,including the amount of acid added,temperature,time,addition of NaCl and solid-liquid ratio in the leaching process.The experimental results show that the contents of bismuth and antimony are mostly enriched in the process of kerosene desulphurization.More than 98% Sb and 96% Bi are extracted under the determined conditions.In the process of hydrolysis,the precipitation rates of bismuth and antimony are 97.80% and 94.59%,respectively.Under the optimum experimental conditions,the recovery rate of bismuth and antimony can be up to 95.80% and 90.80%,respectively.
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