A novel activation system for wolframite flotation by using Cu(II) ion and α-hydroxyoctyl phosphinic acid
The flotation and adsorption mechanism of wolframite with low-toxic copper ion in the presence of α-hydroxyoctyl phosphinic acid (HPA) were investigated to reduce the use of highly toxic lead nitrate. The adsorption mechanism and flotation performance were characterized by flotation test, time-of-fl...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-03-01
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| Series: | Chemical Engineering Journal Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666821121001496 |
| _version_ | 1828137531317682176 |
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| author | Fangxu Li Gang Zhao Hong Zhong Shuai Wang Guangyi Liu |
| author_facet | Fangxu Li Gang Zhao Hong Zhong Shuai Wang Guangyi Liu |
| author_sort | Fangxu Li |
| collection | DOAJ |
| description | The flotation and adsorption mechanism of wolframite with low-toxic copper ion in the presence of α-hydroxyoctyl phosphinic acid (HPA) were investigated to reduce the use of highly toxic lead nitrate. The adsorption mechanism and flotation performance were characterized by flotation test, time-of-flight secondary-ion mass spectrometry (TOF-SIMS), zeta-potential measurement and X-ray photoelectron spectrometer (XPS). The flotation test showed that the recovery of wolframite increased from 54.9% to 69.1% after Cu(II) modification at pH 9. Meanwhile, Sodium hexametaphosphate(SHP) performed well in separating wolframite from quartz in presence of Cu(II) and HPA. The results of TOF-SIMS, Zeta-potential and XPS indicated new Cu(I), Cu(II) and Fe(III) species were traced on the wolframite surface after Cu(II) treatment. HPA was chemisorbed on the surface of wolframite through M(Fe, Cu, Mn, W)-HPA complexes. |
| first_indexed | 2024-04-11T18:20:21Z |
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| id | doaj.art-d0dfa59d69a348aea976dfc179082d4f |
| institution | Directory Open Access Journal |
| issn | 2666-8211 |
| language | English |
| last_indexed | 2024-04-11T18:20:21Z |
| publishDate | 2022-03-01 |
| publisher | Elsevier |
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| series | Chemical Engineering Journal Advances |
| spelling | doaj.art-d0dfa59d69a348aea976dfc179082d4f2022-12-22T04:09:47ZengElsevierChemical Engineering Journal Advances2666-82112022-03-019100234A novel activation system for wolframite flotation by using Cu(II) ion and α-hydroxyoctyl phosphinic acidFangxu Li0Gang Zhao1Hong Zhong2Shuai Wang3Guangyi Liu4Institute of Resources Utilization and Rare Earth Development, Guangdong Academy of Sciences, Guangzhou 510560, China; State Key Laboratory of Rare Metals Separation and Comprehensive Utilization, Guangzhou 510560, China; Corresponding author.Institute of Resources Utilization and Rare Earth Development, Guangdong Academy of Sciences, Guangzhou 510560, China; State Key Laboratory of Rare Metals Separation and Comprehensive Utilization, Guangzhou 510560, ChinaSchool of Chemistry and Chemical Engineering, Central South University, Changsha 410083, ChinaSchool of Chemistry and Chemical Engineering, Central South University, Changsha 410083, ChinaSchool of Chemistry and Chemical Engineering, Central South University, Changsha 410083, ChinaThe flotation and adsorption mechanism of wolframite with low-toxic copper ion in the presence of α-hydroxyoctyl phosphinic acid (HPA) were investigated to reduce the use of highly toxic lead nitrate. The adsorption mechanism and flotation performance were characterized by flotation test, time-of-flight secondary-ion mass spectrometry (TOF-SIMS), zeta-potential measurement and X-ray photoelectron spectrometer (XPS). The flotation test showed that the recovery of wolframite increased from 54.9% to 69.1% after Cu(II) modification at pH 9. Meanwhile, Sodium hexametaphosphate(SHP) performed well in separating wolframite from quartz in presence of Cu(II) and HPA. The results of TOF-SIMS, Zeta-potential and XPS indicated new Cu(I), Cu(II) and Fe(III) species were traced on the wolframite surface after Cu(II) treatment. HPA was chemisorbed on the surface of wolframite through M(Fe, Cu, Mn, W)-HPA complexes.http://www.sciencedirect.com/science/article/pii/S2666821121001496FlotationAdsorption mechanismCu(II) activationWolframite |
| spellingShingle | Fangxu Li Gang Zhao Hong Zhong Shuai Wang Guangyi Liu A novel activation system for wolframite flotation by using Cu(II) ion and α-hydroxyoctyl phosphinic acid Chemical Engineering Journal Advances Flotation Adsorption mechanism Cu(II) activation Wolframite |
| title | A novel activation system for wolframite flotation by using Cu(II) ion and α-hydroxyoctyl phosphinic acid |
| title_full | A novel activation system for wolframite flotation by using Cu(II) ion and α-hydroxyoctyl phosphinic acid |
| title_fullStr | A novel activation system for wolframite flotation by using Cu(II) ion and α-hydroxyoctyl phosphinic acid |
| title_full_unstemmed | A novel activation system for wolframite flotation by using Cu(II) ion and α-hydroxyoctyl phosphinic acid |
| title_short | A novel activation system for wolframite flotation by using Cu(II) ion and α-hydroxyoctyl phosphinic acid |
| title_sort | novel activation system for wolframite flotation by using cu ii ion and α hydroxyoctyl phosphinic acid |
| topic | Flotation Adsorption mechanism Cu(II) activation Wolframite |
| url | http://www.sciencedirect.com/science/article/pii/S2666821121001496 |
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