Flotation behavior and mechanism of a novel Gemini surfactant N, N'-bis(cetyldimethyl)-1,4-butane diammonium dibromide for the separation of quartz and feldspar.
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| Title: | Flotation behavior and mechanism of a novel Gemini surfactant N, N'-bis(cetyldimethyl)-1,4-butane diammonium dibromide for the separation of quartz and feldspar. |
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| Authors: | Fan, Xuyang1 (AUTHOR), Wu, Hanjun1 (AUTHOR), Pan, Zhiquan1 (AUTHOR), Dai, Dian2 (AUTHOR), Zhang, Han3 (AUTHOR), Zhou, Hong1,4 (AUTHOR) hzhouh@126.com |
| Source: | Applied Surface Science. Mar2026, Vol. 721, pN.PAG-N.PAG. 1p. |
| Subjects: | Quartz, Feldspar, Physisorption, Hydrophobic interactions, Ionic interactions, Surface active agents, Flotation, Density functional theory |
| Abstract: | [Display omitted] • A Gemini surfactant was synthesized and used for feldspar and quartz separation. • The maximum flotation difference between quartz and feldspar reaches 87.31 %. • BCBD adsorbs more on the quartz surface. • The electrostatic-hydration synergy leads to the variation in flotation behavior. • The difference in hydration barriers is the key to selective flotation separation. In this paper, a cationic Gemini surfactant N, N'-bis(cetyldimethyl)-1,4-butane diammonium dibromide (BCBD), was synthesized and used as a novel collector for the froth flotation of feldspar and quartz. Pure mineral flotation results showed optimal conditions: pH 6 and BCBD concentration of 2.4 × 10−5 mol/L, with a maximum flotation difference of 87.31 %. For artificial-mixed-ore at pH 3, the unfloated product had 17.83 % Al 2 O 3 , 11.06 % N 2 O + K 2 O, 69.97 % SiO 2 , and 73.54 % feldspar recovery; the floated product reached 92.03 % SiO 2 , 57.99 % yield, and 89.52 % quartz recovery. The flotation effect of BCBD focuses on high-quality feldspar and high SiO 2 recovery. The Zeta potential, Fourier transform infrared spectrometer (FTIR), X-ray photoelectron spectroscopy (XPS), and contact angle measurements indicate that BCBD selectively adsorbs more on the quartz surface, thereby enhancing the hydrophobicity of quartz. Density functional theory (DFT) calculations revealed that the –CH 2 N(CH 3) 2 (CH 2) 4 N(CH 3) 2 CH 2 – group of BCBD, with a high positive charge, enables easy adsorption on nucleophilic mineral surfaces. Further analysis based on the extended Derjaguin-Landau-Verwey-Overbeek (E-DLVO) theory and surface energy calculation, showing that there are thermodynamic differences in the interaction between BCBD and quartz and feldspar, mainly regulated by the electrostatic-hydration synergy. Crucially, the difference in hydration barriers between quartz and feldspar is the key to selective flotation separation. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 190273806 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Flotation behavior and mechanism of a novel Gemini surfactant N, N'-bis(cetyldimethyl)-1,4-butane diammonium dibromide for the separation of quartz and feldspar. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Fan%2C+Xuyang%22">Fan, Xuyang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Hanjun%22">Wu, Hanjun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pan%2C+Zhiquan%22">Pan, Zhiquan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dai%2C+Dian%22">Dai, Dian</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Han%22">Zhang, Han</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Hong%22">Zhou, Hong</searchLink><relatesTo>1,4</relatesTo> (AUTHOR)<i> hzhouh@126.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Surface+Science%22">Applied Surface Science</searchLink>. Mar2026, Vol. 721, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Quartz%22">Quartz</searchLink><br /><searchLink fieldCode="DE" term="%22Feldspar%22">Feldspar</searchLink><br /><searchLink fieldCode="DE" term="%22Physisorption%22">Physisorption</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrophobic+interactions%22">Hydrophobic interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Ionic+interactions%22">Ionic interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+active+agents%22">Surface active agents</searchLink><br /><searchLink fieldCode="DE" term="%22Flotation%22">Flotation</searchLink><br /><searchLink fieldCode="DE" term="%22Density+functional+theory%22">Density functional theory</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: [Display omitted] • A Gemini surfactant was synthesized and used for feldspar and quartz separation. • The maximum flotation difference between quartz and feldspar reaches 87.31 %. • BCBD adsorbs more on the quartz surface. • The electrostatic-hydration synergy leads to the variation in flotation behavior. • The difference in hydration barriers is the key to selective flotation separation. In this paper, a cationic Gemini surfactant N, N'-bis(cetyldimethyl)-1,4-butane diammonium dibromide (BCBD), was synthesized and used as a novel collector for the froth flotation of feldspar and quartz. Pure mineral flotation results showed optimal conditions: pH 6 and BCBD concentration of 2.4 × 10−5 mol/L, with a maximum flotation difference of 87.31 %. For artificial-mixed-ore at pH 3, the unfloated product had 17.83 % Al 2 O 3 , 11.06 % N 2 O + K 2 O, 69.97 % SiO 2 , and 73.54 % feldspar recovery; the floated product reached 92.03 % SiO 2 , 57.99 % yield, and 89.52 % quartz recovery. The flotation effect of BCBD focuses on high-quality feldspar and high SiO 2 recovery. The Zeta potential, Fourier transform infrared spectrometer (FTIR), X-ray photoelectron spectroscopy (XPS), and contact angle measurements indicate that BCBD selectively adsorbs more on the quartz surface, thereby enhancing the hydrophobicity of quartz. Density functional theory (DFT) calculations revealed that the –CH 2 N(CH 3) 2 (CH 2) 4 N(CH 3) 2 CH 2 – group of BCBD, with a high positive charge, enables easy adsorption on nucleophilic mineral surfaces. Further analysis based on the extended Derjaguin-Landau-Verwey-Overbeek (E-DLVO) theory and surface energy calculation, showing that there are thermodynamic differences in the interaction between BCBD and quartz and feldspar, mainly regulated by the electrostatic-hydration synergy. Crucially, the difference in hydration barriers between quartz and feldspar is the key to selective flotation separation. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.apsusc.2025.165468 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Quartz Type: general – SubjectFull: Feldspar Type: general – SubjectFull: Physisorption Type: general – SubjectFull: Hydrophobic interactions Type: general – SubjectFull: Ionic interactions Type: general – SubjectFull: Surface active agents Type: general – SubjectFull: Flotation Type: general – SubjectFull: Density functional theory Type: general Titles: – TitleFull: Flotation behavior and mechanism of a novel Gemini surfactant N, N'-bis(cetyldimethyl)-1,4-butane diammonium dibromide for the separation of quartz and feldspar. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Fan, Xuyang – PersonEntity: Name: NameFull: Wu, Hanjun – PersonEntity: Name: NameFull: Pan, Zhiquan – PersonEntity: Name: NameFull: Dai, Dian – PersonEntity: Name: NameFull: Zhang, Han – PersonEntity: Name: NameFull: Zhou, Hong IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 01694332 Numbering: – Type: volume Value: 721 Titles: – TitleFull: Applied Surface Science Type: main |
| ResultId | 1 |
