| 宋键斌，丁德馨，叶勇军，李广悦，扶海鹰.铀矿堆不同深度铀矿石浸出规律的柱浸试验[J].南华大学学报(自然科学版),2013,27(2):27~31.[SONG Jian-bin,DING De-xin*,YE Yong-jun,LI Guang-yue,FU Hai-ying.Column Leaching Test of the Leaching Rule of Uranium Mineral in Different Depth of the Heap[J].Journal of University of South China(Science and Technology),2013,27(2):27~31.] |
| 铀矿堆不同深度铀矿石浸出规律的柱浸试验 |
| Column Leaching Test of the Leaching Rule of Uranium Mineral in Different Depth of the Heap |
| 投稿时间：2013-03-02 |
| DOI： |
| 中文关键词: 铀矿 矿堆深度 柱浸试验 |
| 英文关键词:uranium mineral depth of the heap column leaching |
| 基金项目:国家自然科学基金资助项目（10975071） |
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| 中文摘要: |
| 为了研究铀矿石堆浸过程中，矿堆不同深度铀矿石的浸出规律，本试验选用粒径范围为1～9 mm的铀矿石，采用自制试验装置展开柱浸试验.试验结果表明：不同深度浸出液的pH随时间逐渐减小，最终在1.0～2.0之间波动，深度越深，pH越大；不同深度浸出液的氧化电位随时间逐渐增大，最后保持在445 mV左右，深度越深，氧化电位越大；不同深度浸出液的铀离子浓度峰值随着深度的增加，出现的越滞后；深层铀矿石的浸出率低于浅层，矿层0～50 cm和250～300 cm相差达20%。 |
| 英文摘要: |
| In order to study the leaching rule of uranium mineral in different depth of the heap,a group of uranium ore sample with the particle size of 1～9 mm was prepared,then we got a column leaching test with a home-made testing apparatus.Experimental results show that,the pH of the leaching solution in different depth diminished by time,finally,fluctuating between 1.0～2.0,the deeper the depth, the greater the pH；the oxidation potential of the leaching solution in different depth increased by time,finally,kept it at about 445 mV,the deeper the depth,the greater the oxidation potential； the deeper the depth,the delay of the peaks of the uranium ion concentration of the leaching solution occurred；the leaching rate of the uranium ore in deep was lower than the shallow,the gap between ore horizon 0～50 cm and 250～300 cm reached 20%. |
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