Study on Iron Removal from Iron-bearing Tungsten Powder by Acid Leaching AITranslate
Abstract AITranslate
Tungsten powder with excessive iron content will be produced during the reduction of tungsten oxide in iron vessel,which cannot be used for subsequent product preparation and is treated as waste.Therefore,acid leaching process was used to purify the tungsten powder containing iron,and dissolve the iron in the tungsten powder to the maximum extent.Firstly,in the hydrochloric acid system,the influence of hydrochloric acid concentration,leaching temperature,leaching time and liquid-solid ratio on the effect of iron removal by acid leaching was investigated by using the variable control method.The iron removal rate is only 84.98%under the optimal conditions of hydrochloric acid concentration 45 g/L,leaching temperature 80℃,leaching time 4 h and liquid-solid ratio 9∶1.Then,the influence of acid type,oxidant amount and acid leaching times on iron leaching was further studied.The comprehensive optimization leaching conditions are as follows:two-stage leaching of H3PO4-H2SO4 mixed acid(volume ratio 1∶4),acid concentration 45 g/L and leaching time 4 h.The metal powder with the lowest iron content of 0.016% is obtained.Under the optimized conditions,the iron removal rate is 99.27% in the 10-kg expansion test,which meets the purity requirement of commercial tungsten powder.
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1万林生,金先文,赖星任,杨亮,刘鹏,梁勇.(NH_4)_2HPO_4-NH_3·H_2O-H_2O系APT溶解度研究[J].稀有金属与硬质合金,2016,44(5):6-10. 被引量：1
2侯会丽,孙青,郑水林,叶鹏.硼泥磁选法除铁试验研究[J].化工矿物与加工,2013,42(11):14-16. 被引量：2
3夏兆泉,陶江崖.Ni-Sn-Fe合金废料的综合利用[J].矿产保护与利用,2002,22(2):45-49. 被引量：3
4邴文彬,王平,李辽沙.超声波酸浸除铁提纯硅微粉实验研究[J].化工矿物与加工,2009,38(7):12-14. 被引量：8
5杨斌,陈广军,石安红,刘柏雄.废旧硬质合金短流程回收技术的研究现状[J].材料导报,2015,29(3):68-74. 被引量：15
6王犇,孟韵,原建国.从钴镍切削废料中回收有价金属的方法[J].无机盐工业,2006,38(5):45-46. 被引量：8
7和晓才,谢刚,李怀仁,施辉献,徐庆鑫,陈家辉.超声波对盐酸脱除氧化铝中铁、硅的影响[J].湿法冶金,2015,34(2):142-145. 被引量：6
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Basic Information:
DOI：
Chinese Library Classification Number:TF841.1[冶金工程—有色金属冶金]
Citation Information:
Tungsten powder with excessive iron content will be produced during the reduction of tungsten oxide in iron vessel,which cannot be used for subsequent product preparation and is treated as waste.Therefore,acid leaching process was used to purify the tungsten powder containing iron,and dissolve the iron in the tungsten powder to the maximum extent.Firstly,in the hydrochloric acid system,the influence of hydrochloric acid concentration,leaching temperature,leaching time and liquid-solid ratio on the effect of iron removal by acid leaching was investigated by using the variable control method.The iron removal rate is only 84.98%under the optimal conditions of hydrochloric acid concentration 45 g/L,leaching temperature 80℃,leaching time 4 h and liquid-solid ratio 9∶1.Then,the influence of acid type,oxidant amount and acid leaching times on iron leaching was further studied.The comprehensive optimization leaching conditions are as follows:two-stage leaching of H3PO4-H2SO4 mixed acid(volume ratio 1∶4),acid concentration 45 g/L and leaching time 4 h.The metal powder with the lowest iron content of 0.016% is obtained.Under the optimized conditions,the iron removal rate is 99.27% in the 10-kg expansion test,which meets the purity requirement of commercial tungsten powder.
quote
| GB/T 7714-2015 | [1] TIAN De-zhu, RAO Ze-wen, OU-YANG Zhen, et al. Study on Iron Removal from Iron-bearing Tungsten Powder by Acid Leaching[J]. Rare Metals and Cemented Carbides, 2019(6): 5-9. |
| MLA | [1] TIAN De-zhu, et al., "Study on Iron Removal from Iron-bearing Tungsten Powder by Acid Leaching." Rare Metals and Cemented Carbides, no. 6, 2019, pp. 5-9. |
| APA | [1] TIAN De-zhu, RAO Ze-wen, OU-YANG Zhen, CHEN Yong-ming, & YE Long-gang. (2019). Study on Iron Removal from Iron-bearing Tungsten Powder by Acid Leaching. Rare Metals and Cemented Carbides(6), 5-9. |
| IEEE | [1] TIAN De-zhu, RAO Ze-wen, OU-YANG Zhen, CHEN Yong-ming, and YE Long-gang, "Study on Iron Removal from Iron-bearing Tungsten Powder by Acid Leaching," Rare Metals and Cemented Carbides, no. 6, pp. 5-9, 2019. keywords: {tungsten powder;acid leaching;iron removal;recovery;phosphoric and sulfuric mixed acid} |