Research and Practice of Chromium Removal from Sodium Tungstate Crystal Material during Waste Tungsten Recovery AITranslate
Abstract AITranslate
High-content chromium in sodium tungstate solution results in phase separation difficulty of sub- sequent processes during waste tungsten recovery by sodium carbonate melting. In view of the above prob- lem, chromium removal together with molybdenum removal by vulcanization was studied through process principle analysis and comparison tests. And the optimal conditions of the relevant process were deter- mined. The results show that when sodium sulfide dosage is four times of the theoretical amount, pH is controlled at 8- 9, and the appropriate temperature and aging time are selected, chromium removal efficiency is high to meet production requirements of the subsequent extraction process, and the quality of the product APT reaches the APT-0 level in GB/T 10116--2007.
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Basic Information:
DOI：
Chinese Library Classification Number:TF803.25[冶金工程—有色金属冶金]
Citation Information:
High-content chromium in sodium tungstate solution results in phase separation difficulty of sub- sequent processes during waste tungsten recovery by sodium carbonate melting. In view of the above prob- lem, chromium removal together with molybdenum removal by vulcanization was studied through process principle analysis and comparison tests. And the optimal conditions of the relevant process were deter- mined. The results show that when sodium sulfide dosage is four times of the theoretical amount, pH is controlled at 8- 9, and the appropriate temperature and aging time are selected, chromium removal efficiency is high to meet production requirements of the subsequent extraction process, and the quality of the product APT reaches the APT-0 level in GB/T 10116--2007.
quote
| GB/T 7714-2015 | [1] XIE Sheng-de, LI Chun-hai, LEI Yin-chun. Research and Practice of Chromium Removal from Sodium Tungstate Crystal Material during Waste Tungsten Recovery[J]. Rare Metals and Cemented Carbides, 2012(3): 8-12. |
| MLA | [1] XIE Sheng-de, et al., "Research and Practice of Chromium Removal from Sodium Tungstate Crystal Material during Waste Tungsten Recovery." Rare Metals and Cemented Carbides, no. 3, 2012, pp. 8-12. |
| APA | [1] XIE Sheng-de, LI Chun-hai, & LEI Yin-chun. (2012). Research and Practice of Chromium Removal from Sodium Tungstate Crystal Material during Waste Tungsten Recovery. Rare Metals and Cemented Carbides(3), 8-12. |
| IEEE | [1] XIE Sheng-de, LI Chun-hai, and LEI Yin-chun, "Research and Practice of Chromium Removal from Sodium Tungstate Crystal Material during Waste Tungsten Recovery," Rare Metals and Cemented Carbides, no. 3, pp. 8-12, 2012. keywords: {waste tungsten recovery;sodium tungstate crystal material;sodium sulfide;chromium removalprocessing;extraction process;APT product} |