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| Separation of vanadium and tungsten in roasting-acid leaching solutions of the spent selective catalytic reducing denitration catalyst by co-extraction using hydroxyoxime extractant-quaternary ammonium salt extractant LIX984-N263 extractant | |
| Liu, Shunliang1,2,3; Feng, Yali1; Li, Haoran2,3 | |
| 2022-10-11 | |
| Source Publication | AICHE JOURNAL
 |
| ISSN | 0001-1541 |
| Pages | 10 |
| Abstract | This study presents a synergistic extraction and recovery of vanadium and tungsten by mixed extractants (LIX984 and N263) from an acid leaching solution which was obtained from spent denitrification catalysts by chlorination heat treatment and acid leaching. Through thrice counter-flow extraction, 99.5% V and 99.7% W were extracted, while 3.0% Fe, 2.9% Ti, 2.1% P, and 3.3% Mg were co-extracted at a LIX984:N263 volume content of 22.0%, the phase ratio of 2.5 and the mother liquor's pH of 2.5. Then, at 0.80 mol/l NaOH and a phase ratio of 1, 99.9% tungsten and 99.1% vanadium were stripped from the organic phase to the aqueous phase. Subsequently, the aqueous phase's tungsten of 99.3% and vanadium of 98.1% were separated as calcium tungstate and ammonium metavanadate, respectively. In contrast, the residual solutions containing tungsten and vanadium can be returned to the following purification separation process to recover the valuable metals from the solution. Roasting converts the precipitated calcium tungstate and ammonium metavanadate to V2O5 and WO3 products. In addition, the thermodynamic analysis found the separation and recovery of tungsten and vanadium from the acid leach solution with LIX984:N263 to be an exothermic process. This method can be effectively extended for the separation of vanadium and tungsten from spent denitrification catalysts by the proposed process and validates the conclusion that metals with similar properties can be extracted using a mixture of extractants. |
| Keyword | collaborative extraction spent denitration catalyst thermodynamics tungsten vanadium |
| DOI | 10.1002/aic.17921 |
| Language | 英语 |
| WOS Keyword | SOLVENT-EXTRACTION ; MOLYBDENUM ; RECOVERY ; RESIDUE ; LIQUORS |
| Funding Project | China Ocean Mineral Resource RD Association[JS-KTHT-2019-01] ; China Ocean Mineral Resource RD Association[DY135-B2-15] ; Major Science and Technology Program for Water Pollution Control and Treatment[2015ZX07205-003] ; National Natural Science Foundation of China[21176242] ; National Natural Science Foundation of China[21176026] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | China Ocean Mineral Resource RD Association ; Major Science and Technology Program for Water Pollution Control and Treatment ; National Natural Science Foundation of China |
| WOS ID | WOS:000866098100001 |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/55055 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Liu, Shunliang |
| Affiliation | 1.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, Shunliang,Feng, Yali,Li, Haoran. Separation of vanadium and tungsten in roasting-acid leaching solutions of the spent selective catalytic reducing denitration catalyst by co-extraction using hydroxyoxime extractant-quaternary ammonium salt extractant LIX984-N263 extractant[J]. AICHE JOURNAL,2022:10. |
| APA | Liu, Shunliang,Feng, Yali,&Li, Haoran.(2022).Separation of vanadium and tungsten in roasting-acid leaching solutions of the spent selective catalytic reducing denitration catalyst by co-extraction using hydroxyoxime extractant-quaternary ammonium salt extractant LIX984-N263 extractant.AICHE JOURNAL,10. |
| MLA | Liu, Shunliang,et al."Separation of vanadium and tungsten in roasting-acid leaching solutions of the spent selective catalytic reducing denitration catalyst by co-extraction using hydroxyoxime extractant-quaternary ammonium salt extractant LIX984-N263 extractant".AICHE JOURNAL (2022):10. |
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