| 去除Ta2O5/Nb2O5中杂质S的工艺研究 |
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| 引用本文： | 刘军 王伟 郑培生. 去除Ta2O5/Nb2O5中杂质S的工艺研究[J]. 稀有金属快报, 2005, 24(10): 36-38 |
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| 作者姓名： | 刘军 王伟 郑培生 |
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| 作者单位： | 宁夏东方钽业股份有限公司,宁夏石嘴山753000 |
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| 摘 要： | 从理论和实际应用方面,研究了去除Ta2O5/Nb2O5中杂质S的方法.通过对制取高纯Ta2O5和Nb2O5的中间产品高纯Ta（OH）5/Nb（OH）3进行过氧化处理,改变Ta,Nb,S等元素在物料中的存在方式,增大了含S杂质的溶解性,降低了物料对含S离子的吸附能力及硫酸盐的分解温度,通过洗涤、焙烧达到有效去除产品中杂质元素S的目的.该方法可在不影响Ta2O5/Nb2O5产品质量的情况下,使杂质S降低到0.0001%以下.
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| 关 键 词： | 氧化钽 氧化铌 硫 氧化 |
| 文章编号： | 1008-5939（2005）10-036-03 |
| 收稿时间： | 2005-08-15 |
| 修稿时间： | 2005-08-15 |
Technology Study of Removing S from the Product Ta2O5/Nb2O5 |
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| Liu Jun, Wang Wei, Zheng Peisheng. Technology Study of Removing S from the Product Ta2O5/Nb2O5[J]. Rare Metals Letters, 2005, 24(10): 36-38 |
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| Authors: | Liu Jun Wang Wei Zheng Peisheng |
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| Affiliation: | Ningxia Orient Tantalum Industry Co.,Ltd.,Shizuishan 753000, China |
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| Abstract: | This paper is about the study on the removal of impurity of S from Ta2O5/Nb2O5 combining theoretic and practical application. The existence of some element such as Ta ,Nb, S and so on is changed by oxidizing the mid-products of Ta(OH)5/ Nb(OH)5,which can increase solubility of S and decrease adsorption ability of ion with sulphur and resolve temperature of sulphate. Then sulphur can be removed by washing and burning. S can decrease to 0.000 1% and it not has influence on the products quality of Ta2O5/Nb2O5 by using this method. |
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| Keywords: | Ta2O5/Nb2O5 sulphur oxidation |
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