| 红层水中铀的化学形态分析及Eh-pH相图绘制 |
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| 引用本文： | 黄麟杰,易发成.红层水中铀的化学形态分析及Eh-pH相图绘制[J].西南科技大学学报,2011,26(1):1-5. |
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| 作者姓名： | 黄麟杰 易发成 |
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| 作者单位： | 西南科技大学核废物与环境安全国防重点学科实验室,四川绵阳,621000 |
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| 摘 要： | 采用热力学计算方法,计算了铀在红层水样中可能存在的形态,以及各种形态的浓度。分析表明水样中以碳酸合铀酰为主要存在形式。根据Eh-pH相图的绘制方法,绘制了铀的3种Eh-pH体系相图。通过理论计算和Eh-pH相图可知铀在氧化介质中主要以6价形式存在,容易发生迁移。硫酸根离子对Eh值有很大影响。
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| 关 键 词： | 红层水 铀 化学形态 Eh-pH相图 |
Red Beds of Chemical Species of Uranium and Eh-pH Phase Diagram |
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| HUANG Lin-jie,YI Fa-cheng.Red Beds of Chemical Species of Uranium and Eh-pH Phase Diagram[J].Journal of Southwest University of Science and Technology,2011,26(1):1-5. |
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| Authors: | HUANG Lin-jie YI Fa-cheng |
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| Institution: | HUANG Lin-jie,YI Fa-cheng(National Defense Key Discipline Laboratory of Neuclear Wastes and Environmental Security,Southwest University of Science and Technology,Mianyang 621000,Sichuan,China) |
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| Abstract: | The possible existing forms of species and the concentration of uranium in red beds water sample were calculated by thermodynamic calculations.The result shows that uranyl carbonate is the main species in the water sample.According to the Eh-pH phase diagram drawing method,three kinds of uranium Eh-pH phase diagram were drawn.The result shows that uranium exists mainly as six prices and easily moves in the oxidation medium by theoretical calculations and Eh-pH phase diagram.Sulfate ion has a great impact on... |
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| Keywords: | Red beds water Uranium Chemical species Eh-pH phase diagram |
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