Optimization of bioleaching high-fluorine and low-sulfur uranium ore by response surface method
Optimization of bioleaching high-fluorine and low-sulfur uranium ore by response surface method
复制标题
响应面法优化高氟低硫铀矿生物浸出工艺
DOI：
10.1007/s10967-019-06712-5
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发表时间：
2019-08
影响因子：
1.6
通讯作者：
Liao Qi
中科院分区：
文献类型：
--
作者：
Zhou Zhongkui;Yang Zhihui;Sun Zhanxue;Chen Gongxin;Xu Lingling;Liao Qi
为优化嗜酸菌群浸出高氟低硫铀矿的条件，采用中心组合设计法和响应面法分别研究了黄铁矿加入量、矿浆浓度、温度与铀回收率的关系。结果表明，矿浆浓度、黄铁矿加入量和温度对铀回收率有显著影响。预测的最佳浸出条件为：黄铁矿加入量2.20%，矿浆浓度7.69%，温度31.90 °C。在最优条件下，铀的实际浸出率为94.84%，与模型预测值95.21%相吻合。研究结果对高氟低硫铀或低品位铀矿石的大规模生物浸出实践具有重要意义。
In order to optimize conditions for bioleaching of the high-fluorine and low-sulfur uranium ore by the test acidophilic consortiums, the central composite design method and response surface method were applied to study the relationships between pyrite addition, pulp density, temperature and uranium recovery rate, respectively. The results showed that the pulp density, pyrite addition and temperature had a significant impact on the uranium recovery rate. The predicted optimum uranium leaching conditions were 2.20% of pyrite addition, 7.69% of pulp density and 31.90 °C of temperature, respectively. The actual uranium leaching rate under the optimal conditions was 94.84%, which was consistent with the predicted values with the model (95.21%). The results were of great significance for a large-scaled bioleaching practice of the high-fluorine and low-sulfur uranium or low-grade uranium ore.
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8.7
作者：
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通讯作者：
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影响因子：
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作者：
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