IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v14y2022i13p7915-d851259.html
   My bibliography  Save this article

Thermodynamics of Imidazolium-Based Ionic Liquids for Inhibiting the Spontaneous Combustion of Sulfide Ore

Author

Listed:
  • Jiaxin Tian

    (College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China)

  • Kai Pan

    (College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China)

  • Zhihui Lang

    (College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China)

  • Rui Huang

    (College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China)

  • Wenrui Sun

    (College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China)

  • Hanyu Chu

    (College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China)

  • Haotong Ren

    (College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China)

  • Lingyu Dong

    (College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China)

  • Yawen Li

    (College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China)

  • Haining Wang

    (College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China)

  • Hui Liu

    (College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018, China
    State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo 454000, China)

Abstract

Spontaneous combustion of sulfide ore is one of the most common disasters in the process of ore mining, storage, and transportation, which can lead to a series of safety and environmental problems, thus affecting sustainable development in society. In this paper, four imidazolium-based ionic liquids: [BMIM][I], [BMIM][BF 4 ], [EMIM][BF 4 ], and [BMIM][NO 3 ], were selected for inhibition experiments with sulfide ores to reveal the inhibition performance of ionic liquids against spontaneous combustion. The results show that the main products from the reaction were Fe 2 O 3 and SO 2 , produced during the process of oxidation and spontaneous combustion and that the reaction moves towards a higher temperature under the action of ionic liquid, indicating that ionic liquids have a significant inhibition effect on the spontaneous combustion of sulfide ore. At the same temperature, the apparent activation energies of the samples treated with ionic liquids were all greater than those of the control samples, indicating that imidazolium-based ionic liquids can effectively reduce the spontaneous combustion tendency of sulfide ores. In addition, compared with other ionic liquids, [BMIM][NO 3 ] had a more pronounced inhibition effect, with the activation energies of both ore samples maximally increased by 8.4% and 10.2% after [BMIM][NO 3 ] treatment. This is due to the ability of [BMIM][NO 3 ] to better isolate the samples from oxygen in the air and reduce the effective collisions between active molecules, thus inhibiting and retarding the spontaneous combustion of sulfide ores.

Suggested Citation

  • Jiaxin Tian & Kai Pan & Zhihui Lang & Rui Huang & Wenrui Sun & Hanyu Chu & Haotong Ren & Lingyu Dong & Yawen Li & Haining Wang & Hui Liu, 2022. "Thermodynamics of Imidazolium-Based Ionic Liquids for Inhibiting the Spontaneous Combustion of Sulfide Ore," Sustainability, MDPI, vol. 14(13), pages 1-16, June.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:13:p:7915-:d:851259
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/14/13/7915/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/14/13/7915/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:14:y:2022:i:13:p:7915-:d:851259. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.