|本期目录/Table of Contents|

[1]王倩,胡宝群,宋金如,等.磷灰石吸附铀试验及其铀成矿意义——以江西相山矿田为例[J].地球科学与环境学报,2016,38(06):813-821.
　WANG Qian,HU Bao-qun,SONG Jin-ru,et al.Experiment on Apatite Adsorbing Uranium and Its Implication on Uranium Mineralization—Taking Xiangshan Orefield in Jiangxi as an Example[J].Journal of Earth Sciences and Environment,2016,38(06):813-821.
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磷灰石吸附铀试验及其铀成矿意义——以江西相山矿田为例(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第38卷
期数:
2016年第06期
页码:
813-821
栏目:
基础地质与矿产地质
出版日期:
2016-11-15

文章信息/Info

Title:
Experiment on Apatite Adsorbing Uranium and Its Implication on Uranium Mineralization—Taking Xiangshan Orefield in Jiangxi as an Example
文章编号:
1672-6561(2016)06-0813-09
作者:
王倩; 胡宝群; 宋金如; 牛建国; 邱林飞; 孙占学; 李满根; 吕古贤
1.内蒙古赤峰地质矿产勘查开发院,内蒙古 赤峰 024000; 2.东华理工大学 放射性地质与勘探技术国防重点学科实验室,江西 南昌 330013; 3.核工业北京地质研究院,北京 100029; 4.中国地质科学院地质力学研究所,北京 100081
Author(s):
WANG Qian;  HU Bao-qun;  SONG Jin-ru;  NIU Jian-guo;  QIU Lin-fei;  SUN Zhan-xue;  LI Man-gen;  LU Gu-xian
1. Chifeng Institute of Geology and Mineral Exploration and Development of Inner Mongolia, Chifeng 024000, Inner Mongolia, China; 2.National Defense Key Laboratory of Fundamental Scienceon Radioactive Geology and Exploration Technology, East China University of Technology, Nanchang330013, Jiangxi, China; 3. Beijing Research Institute of Uranium Geology, Beijing 100029, China; 4. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
关键词:
磷灰石; 吸附; 铀矿; 富矿石; 赋存特征; 成矿作用; 热液矿床; 江西
Keywords:
apatite;  adsorption;  uranium deposit;  high-grade ore;  occurrence characteristic;  mineralization;  hydrothermal deposit;  Jiangxi 
分类号:
P611.5;P619.14
DOI:
-
文献标志码:
A
摘要:
在相山矿田发现富矿体中铀矿物与磷灰石紧密共生,U含量与P2O5含量呈明显的正相关关系。磷灰石先形成,铀后被吸附而富集成矿。运用静态法研究磷灰石对铀的吸附行为,探讨了pH值、时间、温度及铀质量浓度等因素对磷灰石吸附铀的影响,并对吸附前后的磷灰石进行了X射线衍射仪(XRD)、扫描电镜(SEM)和X射线能谱仪(EDS)分析。结果表明:在酸性—弱酸性条件下,磷灰石可以在10 min内自发地迅速吸附大量铀,吸附过程中无新的矿物相生成,铀呈非晶态吸附在磷灰石表面;磷灰石对铀的吸附同时符合Boyd液膜公式及Langmuir吸附等温模型;磷灰石对铀的最大吸附量可达94.3×10-3,吸附半衰期为33.97 s。揭示的磷灰石吸附铀的规律有助于探讨磷灰石对相山矿田铀富集成矿的意义。
Abstract:
Uranium minerals and apatite from high-grade ores in Xiangshan orefield are closely associated, and the relationship between contents of U and P2O5 is obvious positive. Apatite forms firstly, and then uranium is absorbed and mineralized. The adsorption behavior of apatite on uranium was studied by the means of static method, and the effects of pH value, time, temperature and mass concentration of uranium on apatite absorbing uranium were discussed. The XRD, SEM, EDS analyses before and after apatite absorbing uranium were compared. The results show that the apatite can rapidly absorb a lot of uranium in the acidweakly acid conditions within 10 min; there is no new mineral formed after the adsorption; uranium is adsorbed on the surface of apatite in amorphous substance; the adsorption can be described by Boyd liquid membrane formula and Langmuir adsorption isotherm model; the maximum adsorption of apatite on uranium is 94.3×10-3, and the half-time of adsorption is 33.97 s. The above results, which reveal the regularity of apatite adsorbing uranium, are helpful for the study on uranium enrichment mineralization effected by apatite in Xiangshan orefield.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-04-19
基金项目:国家自然科学基金项目(41472069,41172078);江西省自然科学基金重大项目(20152ACB20015)
作者简介:王倩(1988-),女,山西阳泉人,内蒙古赤峰地质矿产勘查开发院助理工程师,E-mail:498882876asd@163.com。
通讯作者:胡宝群(1965-),男,江西进贤人,教授,理学博士,E-mail:bqhu@ecit.cn。
更新日期/Last Update: 2016-12-01