View in EDS HTML Full Text PDF Full Text

Application of modified diesel in long-flame coal flotation and optimization of flotation process parameters.

Saved in:
Bibliographic Details
Title: Application of modified diesel in long-flame coal flotation and optimization of flotation process parameters.
Authors: Chen, Songjiang1 (AUTHOR) chen.songjiang@xust.edu.cn, Zhou, Kexin1 (AUTHOR), Xie, Runchen1 (AUTHOR), Feng, Junhao1 (AUTHOR), Zhang, Ningning1 (AUTHOR), Zhu, Zhanglei1 (AUTHOR), Yu, Yuexian1 (AUTHOR), Li, Zhen1 (AUTHOR)
Source: International Journal of Coal Preparation & Utilization. 2026, Vol. 46 Issue 6, p1507-1527. 21p.
Subject Terms: *Flotation, *Coal, *Oxygenated diesel fuels
Abstract: Low-rank coals due to their strong surface hydrophilicity often response poorly to the flotation process with the traditional hydrocarbon oil used as collectors. In this study, a novel collector, i.e. oxidized diesel, containing oxygenated groups, was prepared via an instantaneous gasification-oxidation-condensation device for the expected enhancement of low-rank coal flotation. The FTIR and XPS analyses showed that the coal sample had rich oxygenated groups on its surface, causing extremely low floatability. The combustible matter recovery in flotation was only 67.25% even though consuming 100 kg/t of common diesel. In contrast, a combustible matter recovery of 90.52% could be obtained at a dosage of 6 kg/t of oxidized diesel, showing excellent flotation performance. Additionally, an optimization of the technological parameters, including the novel collector dosage, impeller speed, pulp concentration and aeration rate, was conducted regarding the flotation of coal sample via the software Design – Expert 12, and a function model of the combustible matter recovery was established. Finally, with the recovery model solved, an optimization scheme obtaining a combustible matter recovery of 86.64% was determined as collector dosage of 4.18 kg/t, the flotation pulp concentration of 40.00 g/L, the impeller speed of 1719 rpm, and the aeration rate of 0.02 m3/h. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: enr
DbLabel: Energy & Power Source
An: 194221850
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Application of modified diesel in long-flame coal flotation and optimization of flotation process parameters.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Songjiang%22">Chen, Songjiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chen.songjiang@xust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhou%2C+Kexin%22">Zhou, Kexin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xie%2C+Runchen%22">Xie, Runchen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Feng%2C+Junhao%22">Feng, Junhao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Ningning%22">Zhang, Ningning</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhu%2C+Zhanglei%22">Zhu, Zhanglei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Yuexian%22">Yu, Yuexian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Zhen%22">Li, Zhen</searchLink><relatesTo>1</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Coal+Preparation+%26+Utilization%22">International Journal of Coal Preparation & Utilization</searchLink>. 2026, Vol. 46 Issue 6, p1507-1527. 21p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Flotation%22">Flotation</searchLink><br />*<searchLink fieldCode="DE" term="%22Coal%22">Coal</searchLink><br />*<searchLink fieldCode="DE" term="%22Oxygenated+diesel+fuels%22">Oxygenated diesel fuels</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Low-rank coals due to their strong surface hydrophilicity often response poorly to the flotation process with the traditional hydrocarbon oil used as collectors. In this study, a novel collector, i.e. oxidized diesel, containing oxygenated groups, was prepared via an instantaneous gasification-oxidation-condensation device for the expected enhancement of low-rank coal flotation. The FTIR and XPS analyses showed that the coal sample had rich oxygenated groups on its surface, causing extremely low floatability. The combustible matter recovery in flotation was only 67.25% even though consuming 100 kg/t of common diesel. In contrast, a combustible matter recovery of 90.52% could be obtained at a dosage of 6 kg/t of oxidized diesel, showing excellent flotation performance. Additionally, an optimization of the technological parameters, including the novel collector dosage, impeller speed, pulp concentration and aeration rate, was conducted regarding the flotation of coal sample via the software Design – Expert 12, and a function model of the combustible matter recovery was established. Finally, with the recovery model solved, an optimization scheme obtaining a combustible matter recovery of 86.64% was determined as collector dosage of 4.18 kg/t, the flotation pulp concentration of 40.00 g/L, the impeller speed of 1719 rpm, and the aeration rate of 0.02 m3/h. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=194221850
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/19392699.2025.2499891
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 21
        StartPage: 1507
    Subjects:
      – SubjectFull: Flotation
        Type: general
      – SubjectFull: Coal
        Type: general
      – SubjectFull: Oxygenated diesel fuels
        Type: general
    Titles:
      – TitleFull: Application of modified diesel in long-flame coal flotation and optimization of flotation process parameters.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Chen, Songjiang
      – PersonEntity:
          Name:
            NameFull: Zhou, Kexin
      – PersonEntity:
          Name:
            NameFull: Xie, Runchen
      – PersonEntity:
          Name:
            NameFull: Feng, Junhao
      – PersonEntity:
          Name:
            NameFull: Zhang, Ningning
      – PersonEntity:
          Name:
            NameFull: Zhu, Zhanglei
      – PersonEntity:
          Name:
            NameFull: Yu, Yuexian
      – PersonEntity:
          Name:
            NameFull: Li, Zhen
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 06
              Text: 2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 19392699
          Numbering:
            – Type: volume
              Value: 46
            – Type: issue
              Value: 6
          Titles:
            – TitleFull: International Journal of Coal Preparation & Utilization
              Type: main
ResultId 1