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| Comparison Experiments on Different Calcium Carbonate Leaching Methods for Alkaline Uranium Ore |
| Received:October 03, 2015 Revised:October 08, 2015 |
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| DOI：10.3969/j.issn.1007-7545.2016.04.011 |
| KeyWord:alkaline uranium ore; continuous leaching of calcium carbonate; period; acid consumption rate |
| Author | Institution |
| Zhu Jianwei |
东华理工大学 水资源与环境工程学院;省部共建核资源与环境教育部重点实验室 |
| Li Xueli |
省部共建核资源与环境教育部重点实验室;东华理工大学 水资源与环境工程学院 |
| Sun Zhanxue |
省部共建核资源与环境教育部重点实验室;东华理工大学 水资源与环境工程学院 |
| Shi Weijun |
省部共建核资源与环境教育部重点实验室;东华理工大学 水资源与环境工程学院 |
| Wang Xuegang |
省部共建核资源与环境教育部重点实验室;东华理工大学 水资源与环境工程学院 |
| Wei Zhongyuan |
省部共建核资源与环境教育部重点实验室;东华理工大学 水资源与环境工程学院 |
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| Abstract: |
| Alkaline uranium ore was pretreated with hydrochloric acid to remove calcium carbonate. Tank leaching was applied in column Z1, while calcium carbonate of uranium ore was leached under condition of full water in column Z2. The results show that calcium carbonate cumulative leaching rate in column Z2 is 64.8% for only 5.38 days with acid consumption rate of 11.49%. Compared with tank leaching in column Z1, the leaching period in column Z2 is shorten by 80%, L/S drops by 35%, and acid consumption rate drops about 4 percent point. The flush leaching of calcium carbonate is efficient and feasible. |
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