Nanobubble Enhances Rutile Flotation Separation in Styrene Phosphoric Acid System
Due to the weak hydrophobicity of styrene phosphoric acid (SPA), the amount used as a collector for rutile flotation is too large, resulting in high beneficiation costs. In this study, SPA was modified by nanobubbles to enhance its hydrophobicity. In this paper, the modification of SPA by nanobubble...
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| Format: | Article |
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MDPI AG
2023-04-01
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| Series: | Separations |
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| Online Access: | https://www.mdpi.com/2297-8739/10/4/243 |
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| author | Yonghai Wang Wei Xiao Wenqing Qin |
| author_facet | Yonghai Wang Wei Xiao Wenqing Qin |
| author_sort | Yonghai Wang |
| collection | DOAJ |
| description | Due to the weak hydrophobicity of styrene phosphoric acid (SPA), the amount used as a collector for rutile flotation is too large, resulting in high beneficiation costs. In this study, SPA was modified by nanobubbles to enhance its hydrophobicity. In this paper, the modification of SPA by nanobubbles and the adsorption mechanism of SPA on rutile surface before and after modification were studied by means of nanoparticle tracking analysis, micro-bubble flotation test, contact angle test, zeta potential test, etc. The results show that SPA can significantly increase the concentration of bulk nanobubbles, increase the flotation recovery of rutile from 55% to 69%, and reduce the dosage of SPA from 101 mg/L to 70 mg/L. Nanobubbles interact with SPA in the form of water drainage, significantly reducing the zeta potential of the rutile surface and increasing the solid–liquid interface contact angle of rutile surface. A model of the interaction between nanobubbles, SPA, and rutile surface is established, which is helpful to understand the process mechanism of nanobubble flotation. |
| first_indexed | 2024-03-11T04:32:17Z |
| format | Article |
| id | doaj.art-abff51c9ca4345b99a994117a5cfca22 |
| institution | Directory Open Access Journal |
| issn | 2297-8739 |
| language | English |
| last_indexed | 2024-03-11T04:32:17Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
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| spelling | doaj.art-abff51c9ca4345b99a994117a5cfca222023-11-17T21:20:30ZengMDPI AGSeparations2297-87392023-04-0110424310.3390/separations10040243Nanobubble Enhances Rutile Flotation Separation in Styrene Phosphoric Acid SystemYonghai Wang0Wei Xiao1Wenqing Qin2School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, ChinaSchool of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Minerals Processing & Bioengineering, Central South University, Changsha 410083, ChinaDue to the weak hydrophobicity of styrene phosphoric acid (SPA), the amount used as a collector for rutile flotation is too large, resulting in high beneficiation costs. In this study, SPA was modified by nanobubbles to enhance its hydrophobicity. In this paper, the modification of SPA by nanobubbles and the adsorption mechanism of SPA on rutile surface before and after modification were studied by means of nanoparticle tracking analysis, micro-bubble flotation test, contact angle test, zeta potential test, etc. The results show that SPA can significantly increase the concentration of bulk nanobubbles, increase the flotation recovery of rutile from 55% to 69%, and reduce the dosage of SPA from 101 mg/L to 70 mg/L. Nanobubbles interact with SPA in the form of water drainage, significantly reducing the zeta potential of the rutile surface and increasing the solid–liquid interface contact angle of rutile surface. A model of the interaction between nanobubbles, SPA, and rutile surface is established, which is helpful to understand the process mechanism of nanobubble flotation.https://www.mdpi.com/2297-8739/10/4/243nanobubblesrutile flotationtargeted modificationselective adsorption |
| spellingShingle | Yonghai Wang Wei Xiao Wenqing Qin Nanobubble Enhances Rutile Flotation Separation in Styrene Phosphoric Acid System Separations nanobubbles rutile flotation targeted modification selective adsorption |
| title | Nanobubble Enhances Rutile Flotation Separation in Styrene Phosphoric Acid System |
| title_full | Nanobubble Enhances Rutile Flotation Separation in Styrene Phosphoric Acid System |
| title_fullStr | Nanobubble Enhances Rutile Flotation Separation in Styrene Phosphoric Acid System |
| title_full_unstemmed | Nanobubble Enhances Rutile Flotation Separation in Styrene Phosphoric Acid System |
| title_short | Nanobubble Enhances Rutile Flotation Separation in Styrene Phosphoric Acid System |
| title_sort | nanobubble enhances rutile flotation separation in styrene phosphoric acid system |
| topic | nanobubbles rutile flotation targeted modification selective adsorption |
| url | https://www.mdpi.com/2297-8739/10/4/243 |
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