作者机构:
[董发勤; 刘明学; 聂小琴] Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, China;[张东] Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, China;[刘宁; 聂小琴] Key Laboratory of Radiation Physics and Technology, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, China;[丁德馨; 李广悦; 聂小琴] Fundamental Science on Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
通讯机构:
Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, China
作者机构:
[王晓亮; 彭国文] School of Chemistry and Chemical Engineering, University of South China, Hengyang, China;[孙世雄] Qinghai Jinrui Mining Development Co., Ltd., Xining, China;[肖方竹; 丁德馨; 彭国文; 胡南; 张志军] Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
作者机构:
南华大学核资源工程学院,湖南衡阳421001;南华大学铀矿冶生物技术国防重点学科实验室,湖南衡阳421001;[杜康; 李广悦; 刁宁宁; 王永东] School of Nuclear Resources Engineering, University of South China, Hengyang, Hunan 421001, China, Key Discipline Laboratory for National Defense of Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, Hunan 421001, China
通讯机构:
[Li, G.-Y.] S;School of Nuclear Resources Engineering, University of South China, Hengyang, Hunan, China
作者机构:
[谢水波; 周洁; 林艳; 王劲松; 杨金辉; 朱雷] Key Discipline Laboratory of National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
通讯机构:
[Wang, J.] K;Key Discipline Laboratory of National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
作者机构:
[刘金香; 王永华; 谢水波; 马华龙; 陈华柏; 李标] Hunan Provincial Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, China;[谢水波] Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
通讯机构:
Hunan Provincial Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, China
作者机构:
[谢焱石; 尹建文; 谭凯旋; 唐振平; 段先哲; 胡杨; 王正庆; 李春光; 王昭昭; 冯志刚] School of Nuclear Resources Engineering, Hunan Provincial Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China, Hengyang;Hunan;421001, China;[谢焱石; 尹建文; 谭凯旋; 唐振平; 段先哲; 胡杨; 王正庆; 李春光; 王昭昭; 冯志刚] Hunan;[谢焱石; 尹建文; 谭凯旋; 唐振平; 段先哲; 胡杨; 王正庆; 李春光; 王昭昭; 冯志刚] 421001, China
通讯机构:
[Tan, K.] S;School of Nuclear Resources Engineering, Hunan Provincial Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China, Hengyang, Hunan, China
作者机构:
[刘明学; 聂小琴; 董发勤] Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest of Science and Technology, Mianyang, China;[张东] Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, China;[Liu, Ning] Key Laboratory of Radiation Physics and Technology, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, China;[丁德馨; 刘宁] Fundamental Science on Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
通讯机构:
Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest of Science and Technology, Mianyang, China
作者机构:
[董发勤; 刘明学; 聂小琴] Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, China;[张东] Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, China;[刘宁] Key Laboratory of Radiation Physics and Technology, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, China;[丁德馨; 李广悦] Fundamental Science on Biotechnology in Uranium Mining and Hydrometallurgy Laboratory, University of South China, Hengyang, China
通讯机构:
Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, China
作者机构:
[潘伟] Key Laboratory of Mine Thermo-motive Disaster and Prevention, Ministry of Education, Liaoning Technical University, Fuxin, China;[杨月平] School of Nuclear Resources Engineering, University of South China, Hengyang, China;[潘伟; 李孜军; 吴超] School of Resources and Safety Engineering, Central South University, Changsha, China
通讯机构:
Key Laboratory of Mine Thermo-motive Disaster and Prevention, Ministry of Education, Liaoning Technical University, Fuxin, China
作者机构:
[李峰; 陈伟; 丁德馨] School of Nuclear Resource Engineering, University of South China, Hengyang, China;[李峰; 陈伟; 胡南; 丁德馨] Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
通讯机构:
School of Nuclear Resource Engineering, University of South China, Hengyang, China
关键词:
含金硫精矿;金;微波焙烧;预处理;浸出率;表面形貌
摘要:
对难浸含金硫精矿进行微波焙烧,考察微波功率、矿量(即样品质量)和焙烧时间对样品质量损失率和浸出率的影响。结果表明:当微波功率为16 k W、焙烧时间为50 min、矿量为900 g时,样品质量损失率可达28.12%,浸出率可达71.56%,较原矿直接碘化浸出率(9.82%)有了大幅提高。利用XRD和SEM技术分析焙烧前后样品的成分和表面形貌,微波焙烧后的样品较原矿更为松散、多孔,更利于浸出。
摘要:
In order to reveal the nonlinear dynamics characteristics of unsteady self-heating process of sulfide ores, nine different kinds of sulfide ore samples from a pyrite mine in China were taken as experimental materials and their self-heating characteristics were measured in laboratory. Furthermore, the measured temperature was studied by integrating wavelet transform, nonlinear characteristic parameters extraction and fuzzy comprehensive evaluation. The results indicate that only the ore samples 1, 2, 6 and 9 have obvious self-heating phenomenon, and their self-heating initiative temperatures are 220 ℃, 239 ℃, 220 ℃ and 220 ℃,respectively, which means that they are difficult to produce self-heating under normal mining conditions. The correlation dimension of self-heating process is fraction and the maximum Lyapunov exponent is positive, which means that it is feasible to study the self-heating process based on chaotic dynamics theory. The nonlinearities of self-heating process of these four samples (ore samples 1, 2, 6 and 9) are 0.8227, 0.7521, 0.9401 and 0.8827 respectively and the order of the samples according to these results is: sample 6,sample 9, sample 1, sample 2, which is consistent with the measured results of self-heating characteristics. Therefore, the nonlinearity method can be used to evaluate the self-heating tendency of sulfide ores, and it is an effective verification of the reliability of measured results.
作者机构:
[蒲成志] School of Nuclear Resources Engineering, University of South China, Hengyang, Hunan, 421001, China;[付宗智] Changsha Engineering and Research Institute Ltd. of Nonferrous Metallurgy, Changsha, Hunan, 411201, China;[张春阳] School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan, Hubei, 430070, China;[蒲成志; 付宗智; 张春阳; 曹平] School of Resources and Safety Engineering, Central South University, Changsha, Hunan, 410083, China
作者机构:
[马华龙; 唐振平; 陈胜; Zeng, Tao-Tao; 谢水波; 凌辉; 王劲松] Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, China;[谢水波] Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
作者机构:
[李广悦; 刁宁宁; 王永东; 杜康; 张振远] Key Discipline Laboratory for National Defense of Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang;Hunan;421001, China;School of Nuclear Resources Engineering, University of South China, Hengyang;[李广悦; 刁宁宁; 王永东; 杜康; 张振远] Hunan
作者机构:
[马华龙; 吴宇琦; 陈胜; 唐振平; Zeng, Tao-Tao; 谢水波; 凌辉] Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, China;[谢水波] Key Discipline Laboratory of National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
通讯机构:
Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang, China