Effect of saline water on the synergistic interaction between diesel and Triton X-100 in the flotation of oxidized coal

• Autorzy: Chang Ziyong , Diallo Lancine , Feng Bo

Identyfikatory

DOI

10.37190/ppmp/131069

• Języki publikacji: EN

Abstrakty

EN

In this study, the effect of medium saline water on the synergistic interaction between diesel and Triton X-100 in the flotation of oxidized coal was investigated. The results showed that the flotation yield of oxidized coal in saline water was higher than that in de-ionized (DI) water due to the promotion of diesel adsorption, which was attributed to the screening of electrostatic repulsion between diesel droplets and coal particles in saline water. Meanwhile, the flotation of oxidized coal could be significantly improved when Triton X-100 was added with diesel as a composite collector, and less Triton X-100 was required in saline water than that in DI water to achieve the same true flotation yield, indicating that saline water could increase the effectiveness of Triton X-100 in improving oxidized coal flotation. A mechanism study revealed that Triton X-100 was able to promote diesel adsorption on oxidized coal through emulsification, thus increasing the surface hydrophobicity of oxidized coal through hydrogen bonding between the headgroups of Triton X-100 and the oxygenated groups on coal surfaces. The non-ionic characteristic of Triton X-100 ensured its capability of enhancing oxidized coal flotation in both DI water and saline water.

Słowa kluczowe

EN

saline water; surfactants; adsorption; flotation; coal oxidation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2021
• Tom: Vol. 57, iss. 1
• Strony: 216--225
• Opis fizyczny: Bibliogr. 35 poz.

Twórcy

autor

Chang Ziyong

• University of Science and Technology Beijing
• The University of Queensland

autor

Diallo Lancine

• University of Science and Technology Beijing

autor

Feng Bo

• Jiangxi University of Science and Technology

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).