Adsorption of bis(2-hydroxy-3-chloropropyl) dodecylamine on quartz surface and its implication on flotation
In order to clarify the effect of polar group modification on flotation performance of amine collector, flotation properties of quartz and hematite using bis(2-hydroxy-3-chloropropyl) dodecylamine (N23) as a collector were investigated. And the adsorption mechanism of N23 on quartz surface was estab...
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| Format: | Article |
| Language: | English |
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Elsevier
2018-06-01
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| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379718301785 |
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| author | Wengang Liu Wenbao Liu Shujuan Dai Benying Wang |
| author_facet | Wengang Liu Wenbao Liu Shujuan Dai Benying Wang |
| author_sort | Wengang Liu |
| collection | DOAJ |
| description | In order to clarify the effect of polar group modification on flotation performance of amine collector, flotation properties of quartz and hematite using bis(2-hydroxy-3-chloropropyl) dodecylamine (N23) as a collector were investigated. And the adsorption mechanism of N23 on quartz surface was established by zeta potential measurements, SEM/EDS measurements, and molecular structure analysis. Single mineral flotation results indicated that N23 showed stronger collecting ability on quartz and hematite than DDA-CH3COOH. However, starch could depress the flotation of hematite. Flotation recovery of 98.10% for quartz could be achieved, when N23 concentration was 43.33 mg/L and starch concentration was 16.67 mg/L at natural slurry pH. Separation of artificially mixed minerals of hematite and quartz was achieved effectively using N23 as the collector. The optimized separation result with 66.29% iron grade and 90.06% iron recovery in concentrate was obtained when slurry pH was 7.34 with 43.33 mg/L N23 and 23.33 mg/L starch. The interaction energies of N23 with mineral surface also showed well consistency with flotation results. SEM/EDS analyses and zeta potential measurements revealed that N23 could absorb on quartz surface in the forms of strong electrostatic and hydrogen bonding interaction. Compared with DDA, N23 had a higher HLB value and better water-solubility, which resulted in better dispersion in water and stronger adsorption on mineral surface. Keywords: Flotation, Adsorption, Bis(2-hydroxy-3-chloropropyl) dodecylamine, Quartz, Hematite |
| first_indexed | 2024-12-24T05:27:18Z |
| format | Article |
| id | doaj.art-e139d9dc906d4c4bb2f6701a20cb8cef |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-24T05:27:18Z |
| publishDate | 2018-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-e139d9dc906d4c4bb2f6701a20cb8cef2022-12-21T17:13:18ZengElsevierResults in Physics2211-37972018-06-01910961101Adsorption of bis(2-hydroxy-3-chloropropyl) dodecylamine on quartz surface and its implication on flotationWengang Liu0Wenbao Liu1Shujuan Dai2Benying Wang3School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China; State Key Laboratory of Mineral Processing, Beijing 100160, China; Corresponding authors at: School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China (W. Liu); School of Mining Engineering, University of Science and Technology Liaoning, Anshan 114051, China (S. Dai).School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Mining Engineering, University of Science and Technology Liaoning, Anshan 114051, China; Corresponding authors at: School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China (W. Liu); School of Mining Engineering, University of Science and Technology Liaoning, Anshan 114051, China (S. Dai).School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaIn order to clarify the effect of polar group modification on flotation performance of amine collector, flotation properties of quartz and hematite using bis(2-hydroxy-3-chloropropyl) dodecylamine (N23) as a collector were investigated. And the adsorption mechanism of N23 on quartz surface was established by zeta potential measurements, SEM/EDS measurements, and molecular structure analysis. Single mineral flotation results indicated that N23 showed stronger collecting ability on quartz and hematite than DDA-CH3COOH. However, starch could depress the flotation of hematite. Flotation recovery of 98.10% for quartz could be achieved, when N23 concentration was 43.33 mg/L and starch concentration was 16.67 mg/L at natural slurry pH. Separation of artificially mixed minerals of hematite and quartz was achieved effectively using N23 as the collector. The optimized separation result with 66.29% iron grade and 90.06% iron recovery in concentrate was obtained when slurry pH was 7.34 with 43.33 mg/L N23 and 23.33 mg/L starch. The interaction energies of N23 with mineral surface also showed well consistency with flotation results. SEM/EDS analyses and zeta potential measurements revealed that N23 could absorb on quartz surface in the forms of strong electrostatic and hydrogen bonding interaction. Compared with DDA, N23 had a higher HLB value and better water-solubility, which resulted in better dispersion in water and stronger adsorption on mineral surface. Keywords: Flotation, Adsorption, Bis(2-hydroxy-3-chloropropyl) dodecylamine, Quartz, Hematitehttp://www.sciencedirect.com/science/article/pii/S2211379718301785 |
| spellingShingle | Wengang Liu Wenbao Liu Shujuan Dai Benying Wang Adsorption of bis(2-hydroxy-3-chloropropyl) dodecylamine on quartz surface and its implication on flotation Results in Physics |
| title | Adsorption of bis(2-hydroxy-3-chloropropyl) dodecylamine on quartz surface and its implication on flotation |
| title_full | Adsorption of bis(2-hydroxy-3-chloropropyl) dodecylamine on quartz surface and its implication on flotation |
| title_fullStr | Adsorption of bis(2-hydroxy-3-chloropropyl) dodecylamine on quartz surface and its implication on flotation |
| title_full_unstemmed | Adsorption of bis(2-hydroxy-3-chloropropyl) dodecylamine on quartz surface and its implication on flotation |
| title_short | Adsorption of bis(2-hydroxy-3-chloropropyl) dodecylamine on quartz surface and its implication on flotation |
| title_sort | adsorption of bis 2 hydroxy 3 chloropropyl dodecylamine on quartz surface and its implication on flotation |
| url | http://www.sciencedirect.com/science/article/pii/S2211379718301785 |
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