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Highly efficient sorption of molybdenum from tungstate solution with modified D301 resin
The separation of molybdenum (Mo) from tungstate solution is a bottleneck problem in tungsten (W) metallurgy, and it hinders the development of high-purity tungsten materials. In this research, a modified D301 resin was used to adsorb and separate molybdenum from tungstate solution. The maximum sorp...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9040875/ https://www.ncbi.nlm.nih.gov/pubmed/35480290 http://dx.doi.org/10.1039/d1ra04458c |
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author | Guo, Fan Xi, Xiaoli Ma, Liwen Nie, Zhuanghua Nie, Zuoren |
author_facet | Guo, Fan Xi, Xiaoli Ma, Liwen Nie, Zhuanghua Nie, Zuoren |
author_sort | Guo, Fan |
collection | PubMed |
description | The separation of molybdenum (Mo) from tungstate solution is a bottleneck problem in tungsten (W) metallurgy, and it hinders the development of high-purity tungsten materials. In this research, a modified D301 resin was used to adsorb and separate molybdenum from tungstate solution. The maximum sorption capacity (Q(e)) of modified D301 for MoS(4)(2−) was found to be 428 mg g(−1) and the separation coefficient (β) was 108.9 when the contact time was 4 h and the reaction temperature was 25 °C and the pH value of the tungstate solution was 7.2. The sorption process conforms to Langmuir isotherm models and the quasi-second-order kinetic model. The sorption mechanism was also discussed, which was a single layered spontaneous sorption process. Theoretical calculations infer bonding behavior between the N atom on the resin and the S atom on the MoS(4)(2−) molecule. The sorption energy is −7.67 eV, which indicated that the sorption process is stable chemical sorption. The desorption experiment showed that more than 90% molybdenum could be desorbed from the loaded resin when the concentration of sodium hydroxide solution was 5 w%. Finally, after three-stage sorption–desorption, almost all molybdenum in the solution was adsorbed, achieving better separation of tungsten and molybdenum. |
format | Online Article Text |
id | pubmed-9040875 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90408752022-04-26 Highly efficient sorption of molybdenum from tungstate solution with modified D301 resin Guo, Fan Xi, Xiaoli Ma, Liwen Nie, Zhuanghua Nie, Zuoren RSC Adv Chemistry The separation of molybdenum (Mo) from tungstate solution is a bottleneck problem in tungsten (W) metallurgy, and it hinders the development of high-purity tungsten materials. In this research, a modified D301 resin was used to adsorb and separate molybdenum from tungstate solution. The maximum sorption capacity (Q(e)) of modified D301 for MoS(4)(2−) was found to be 428 mg g(−1) and the separation coefficient (β) was 108.9 when the contact time was 4 h and the reaction temperature was 25 °C and the pH value of the tungstate solution was 7.2. The sorption process conforms to Langmuir isotherm models and the quasi-second-order kinetic model. The sorption mechanism was also discussed, which was a single layered spontaneous sorption process. Theoretical calculations infer bonding behavior between the N atom on the resin and the S atom on the MoS(4)(2−) molecule. The sorption energy is −7.67 eV, which indicated that the sorption process is stable chemical sorption. The desorption experiment showed that more than 90% molybdenum could be desorbed from the loaded resin when the concentration of sodium hydroxide solution was 5 w%. Finally, after three-stage sorption–desorption, almost all molybdenum in the solution was adsorbed, achieving better separation of tungsten and molybdenum. The Royal Society of Chemistry 2021-09-07 /pmc/articles/PMC9040875/ /pubmed/35480290 http://dx.doi.org/10.1039/d1ra04458c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Guo, Fan Xi, Xiaoli Ma, Liwen Nie, Zhuanghua Nie, Zuoren Highly efficient sorption of molybdenum from tungstate solution with modified D301 resin |
title | Highly efficient sorption of molybdenum from tungstate solution with modified D301 resin |
title_full | Highly efficient sorption of molybdenum from tungstate solution with modified D301 resin |
title_fullStr | Highly efficient sorption of molybdenum from tungstate solution with modified D301 resin |
title_full_unstemmed | Highly efficient sorption of molybdenum from tungstate solution with modified D301 resin |
title_short | Highly efficient sorption of molybdenum from tungstate solution with modified D301 resin |
title_sort | highly efficient sorption of molybdenum from tungstate solution with modified d301 resin |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9040875/ https://www.ncbi.nlm.nih.gov/pubmed/35480290 http://dx.doi.org/10.1039/d1ra04458c |
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