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投稿时间:2015-03-06 修订日期:2015-03-27 录用日期:2015-03-30 网络发布日期:2015-07-17
投稿时间:2015-03-06 修订日期:2015-03-27 录用日期:2015-03-30 网络发布日期:2015-07-17
中文摘要: 考察了双氧水的加入方式和加入量、反应温度、氧化时间等对砷碱渣浸出液氧化脱锑效果的影响,以及电位与脱锑率的关系。结果表明,最佳工艺参数为:常温、反应时间60 min、双氧水加入量为原液体积的0.6%(等价于每克锑17.65 mL)、双氧水进料时间控制在反应的前1/3时间段、反应终点电位-550~-450 mV。脱锑率可达到95%以上,氧化后得到的锑酸钠纯度可达到91.83%,达到市售普通锑酸钠的品质要求。该技术突破了价态调控还原浸出液中锑的关键技术。
Abstract:The effects of addition method and amount of hydrogen peroxide, reaction temperature, and oxidation time on antimony oxidation removal from leaching liquor of arsenic alkali residue, as well as relationship between potential and antimony removal rate were investigated. The results show that purity of sodium antimonate is 91.83% with antimony removal rate of 95% above under the optimum conditions including room temperature, total oxidation time of 60 min, volume mass of hydrogen peroxide solution of 0.6% of lixivium (equivalent to 17.65 mL for one gram antimony) fed at first 20 minutes, and potential of reaction endpoint of -550~-450 mV. The obtained products of sodium antimonate meet common market quality requirements. The key technology breakthrough was made in reduction of antimony from leaching solution by valence state regulation.
文章编号: 中图分类号: 文献标志码:
基金项目:国家高技术研究发展计划(863计划)项目(2010AA065204)
| Author Name | Affiliation | |
| Wan Wenyu | HunanSResearchSInstituteSforSNonferrousSMetals | 328750414@qq.com |
| CHEN Wei | ||
| Huang Shunhong | ||
| SUN Jian-de | ||
| Li Qian |
引用文本:
万文玉,陈伟,黄顺红,孙建德,李倩.砷碱渣浸出液氧化脱锑试验[J].有色金属(冶炼部分),2015(8):6-9.
Wan Wenyu,CHEN Wei,Huang Shunhong,SUN Jian-de,Li Qian.Antimony Oxidation Removal from Arsenic Alkali Residue Leaching Solution[J].Nonferrous Metals (Extractive Metallurgy),2015(8):6-9.
万文玉,陈伟,黄顺红,孙建德,李倩.砷碱渣浸出液氧化脱锑试验[J].有色金属(冶炼部分),2015(8):6-9.
Wan Wenyu,CHEN Wei,Huang Shunhong,SUN Jian-de,Li Qian.Antimony Oxidation Removal from Arsenic Alkali Residue Leaching Solution[J].Nonferrous Metals (Extractive Metallurgy),2015(8):6-9.

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