Industrial Experimental Study of Deep Dephosphorization of Crude Sodium Tungstate Solution AITranslate
Abstract AITranslate
Phosphorus removal from sodium tungstate solution is very important to produce qualified ammonium paratungstate products.Using industrial sodium tungstate solution as raw material,the effects of dephosphorizing agent dosage,residual alkali concentration and feeding methods on dephosphorization of sodium tungstate solution were studied.The results show that the dephosphorization rate of sodium tungstate solution is over 98%when the dephosphorizing agent is 2 times the theoretical amount,the residual alkali concentration is 15 g/L,the reaction temperature is 75℃and the reaction time is 1.5 h.In addition,the test results also show that the crystallization mother liquor can be mixed with sodium tungstate solution,and the residual alkali contained in the mother liquor can be used to adjust the pH value of the phosphorus removal system to reduce the consumption of alkali.The experimental results can provide theoretical guidance for optimizing technological parameters of deep dephosphorization of sodium tungstate solution in industry.
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DOI：
Chinese Library Classification Number:TF841.1[冶金工程—有色金属冶金]
Citation Information:
Phosphorus removal from sodium tungstate solution is very important to produce qualified ammonium paratungstate products.Using industrial sodium tungstate solution as raw material,the effects of dephosphorizing agent dosage,residual alkali concentration and feeding methods on dephosphorization of sodium tungstate solution were studied.The results show that the dephosphorization rate of sodium tungstate solution is over 98%when the dephosphorizing agent is 2 times the theoretical amount,the residual alkali concentration is 15 g/L,the reaction temperature is 75℃and the reaction time is 1.5 h.In addition,the test results also show that the crystallization mother liquor can be mixed with sodium tungstate solution,and the residual alkali contained in the mother liquor can be used to adjust the pH value of the phosphorus removal system to reduce the consumption of alkali.The experimental results can provide theoretical guidance for optimizing technological parameters of deep dephosphorization of sodium tungstate solution in industry.
quote
| GB/T 7714-2015 | [1] YANG Yun-guang, WAN Lin-sheng, GONG Dan-dan. Industrial Experimental Study of Deep Dephosphorization of Crude Sodium Tungstate Solution[J]. Rare Metals and Cemented Carbides, 2019(4): 1-6. |
| MLA | [1] YANG Yun-guang, et al., "Industrial Experimental Study of Deep Dephosphorization of Crude Sodium Tungstate Solution." Rare Metals and Cemented Carbides, no. 4, 2019, pp. 1-6. |
| APA | [1] YANG Yun-guang, WAN Lin-sheng, & GONG Dan-dan. (2019). Industrial Experimental Study of Deep Dephosphorization of Crude Sodium Tungstate Solution. Rare Metals and Cemented Carbides(4), 1-6. |
| IEEE | [1] YANG Yun-guang, WAN Lin-sheng, and GONG Dan-dan, "Industrial Experimental Study of Deep Dephosphorization of Crude Sodium Tungstate Solution," Rare Metals and Cemented Carbides, no. 4, pp. 1-6, 2019. keywords: {sodium tungstate solution;deep dephosphorization;sodium hydroxide;crystallization mother liquor;residual alkali} |