| 钼酸溶液的喇曼光谱研究 |
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| 引用本文： | 高良才,张国维,赵桂荣,冯学芸.钼酸溶液的喇曼光谱研究[J].铀矿冶,1987(3). |
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| 作者姓名： | 高良才 张国维 赵桂荣 冯学芸 |
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| 作者单位： | 北京铀矿选冶研究所
(高良才，张国维，赵桂荣)，北京铀矿选冶研究所(冯学芸) |
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| 摘 要： | 用激光喇曼光谱法研究了含钼0.2mol/L和pH值为9.0—1.5的各种钼酸溶液。由测得的喇曼光谱确定了溶液中钼的化学状态和钼酸根阴离子的种类。在pH值高于6.4时,钼以单核钼酸根阴离子MoO_4~(2-)存在。在pH值为6.4—1.5时,溶液中相继出现下列多核钼酸根阴离子和某些质子化产物:Mo_7O_(24)~(6-)、HMo_7O_(24)~(5-)、H_2Mo_7O_(24)~(4-)、H_3Mo_7O_(24)~(3-)、Mo_8O_(26)~(4-)、Mo_6O_(19)~(2-)和MoO_4~(2-)·(MoO_3)_(11)。提出了各种钼酸根阴离子之间的化学平衡与溶液pH值的关系。
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| 关 键 词： | 喇曼光谱 钼酸溶液 铀水冶 |
RAMAN SPECTRA INVESTIGATION ON MOLYBDIC ACID SOLUTION IN URANIUM ORE PROCESSING |
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| Gao Liangcai Zhang Guowei Zhao Guirong,Feng Xueyun.RAMAN SPECTRA INVESTIGATION ON MOLYBDIC ACID SOLUTION IN URANIUM ORE PROCESSING[J].Uranium Mining and Metallurgy,1987(3). |
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| Authors: | Gao Liangcai Zhang Guowei Zhao Guirong Feng Xueyun |
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| Affiliation: | Beijing Research Institute of Uranium Ore Processing |
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| Abstract: | In this paper the 0.2 mol/L variant molybdate anions contained in aqueous solution in the pH range of 1.5 to 9.0 are investigated by Laser Raman Spectroscopy. The Raman shifts obtained are in agreement with that in the published papers of the other investigators. According to the shifts, the chemical states of the molybdate species in the aqueous solution are determined. The species of monomolybdate anion is present in the solution at pH>6.4.When the pH value of the solution is between 6.4 and 1.5, the species of polymolybdate anions and some protonated hetpamolybdate anions are formed gradually in the following order. Mo7o246-, HMo7o246-, H2Mo7o244-, H3Mo7o243-, Mo8o284-, Mo6o192- and MoO42-. (MoO3)11. The relationship between the chemical balance of variant molybdate anions and the values of pH in solution is presented. |
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| Keywords: | Raman spectra Molybdic acid Uranium hydrometallurgy |
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