Synthesis of New Quaternary Ammonium Salt and its Comparison with N263 in Alkaline Vanadium Extraction Process AITranslate
Abstract AITranslate
The new HCO3- type quaternary ammonium salt OMEA was synthesized for vanadium extraction from vanadium-containing solution gained by blank roasting-pressurized alkaline leaching-desilicification of vanadium-containing carbonaceous shale. The comparative tests with OMEA and N263 quaternary ammo- nium salt were conducted. The results show that the vanadium extraction rate of 200 g/L OMEA system and 150 g/L N263 system decreases with the increase of pH value of the vanadium-containing solution. The vanadium extraction saturation capacity of the two kinds of extraction agents is relatively low,OMEA system has lower extraction proportionality than N263 system,indicating that the utilization of OMEA quaternary ammonium salt is higher, and its vanadium binding capacity is stronger too. During the stripping process,NaOH solution has good striping effect on loaded organic phase,and the stripping rate of OMEA system is 3~ higher than that of N263 system. Repeated regeneration of OMEA and that of N263 quater- nary ammonium salt extraction agents with strong stability has little effect on vanadium extraction saturation capacity. Thus, OMEA has good prospects in the process of alkaline leaching-vanadium extraction of vanadium-containing carbonaceous shale,to resolve the problems of tow saturation capacity and long phase separation time existing in N263.
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Basic Information:
DOI：
Chinese Library Classification Number:TF841.3[冶金工程—有色金属冶金]
Citation Information:
The new HCO3- type quaternary ammonium salt OMEA was synthesized for vanadium extraction from vanadium-containing solution gained by blank roasting-pressurized alkaline leaching-desilicification of vanadium-containing carbonaceous shale. The comparative tests with OMEA and N263 quaternary ammo- nium salt were conducted. The results show that the vanadium extraction rate of 200 g/L OMEA system and 150 g/L N263 system decreases with the increase of pH value of the vanadium-containing solution. The vanadium extraction saturation capacity of the two kinds of extraction agents is relatively low,OMEA system has lower extraction proportionality than N263 system,indicating that the utilization of OMEA quaternary ammonium salt is higher, and its vanadium binding capacity is stronger too. During the stripping process,NaOH solution has good striping effect on loaded organic phase,and the stripping rate of OMEA system is 3~ higher than that of N263 system. Repeated regeneration of OMEA and that of N263 quater- nary ammonium salt extraction agents with strong stability has little effect on vanadium extraction saturation capacity. Thus, OMEA has good prospects in the process of alkaline leaching-vanadium extraction of vanadium-containing carbonaceous shale,to resolve the problems of tow saturation capacity and long phase separation time existing in N263.
quote
| GB/T 7714-2015 | [1] DENG Hai-bi, CAO Zuo-ying, LI Jia-hao. Synthesis of New Quaternary Ammonium Salt and its Comparison with N263 in Alkaline Vanadium Extraction Process[J]. Rare Metals and Cemented Carbides, 2016(4): 1-4. |
| MLA | [1] DENG Hai-bi, et al., "Synthesis of New Quaternary Ammonium Salt and its Comparison with N263 in Alkaline Vanadium Extraction Process." Rare Metals and Cemented Carbides, no. 4, 2016, pp. 1-4. |
| APA | [1] DENG Hai-bi, CAO Zuo-ying, & LI Jia-hao. (2016). Synthesis of New Quaternary Ammonium Salt and its Comparison with N263 in Alkaline Vanadium Extraction Process. Rare Metals and Cemented Carbides(4), 1-4. |
| IEEE | [1] DENG Hai-bi, CAO Zuo-ying, and LI Jia-hao, "Synthesis of New Quaternary Ammonium Salt and its Comparison with N263 in Alkaline Vanadium Extraction Process," Rare Metals and Cemented Carbides, no. 4, pp. 1-4, 2016. keywords: {vanadium-containing carbonaceous shale;alkaline vanadium extraction;OMEA;N263;quaternary ammonium salt;extraction;stripping} |