Effect of the oxygen-containing functional group on the adsorption of hydrocarbon oily collectors on coal surfaces

• Autorzy: Wan He , Hu Xianglin , Luukkanen Saija , Qu Juanping , Zhang Chonghui , Xue Jiwei , Li Hui , Yang Wei , Yang Shenghong , Bu Xianzhong

Identyfikatory

DOI

10.37190/ppmp/149937

• Języki publikacji: EN

Abstrakty

EN

The oxygen-containing functional groups (OCFG) on the coal surface affect the adsorption effect of hydrocarbon oily collectors (HOC). An investigation of the interaction between the HOC and OCFG in the absence and presence of water is conducive to understanding the effect of OCFG type on the adsorption of HOC on the coal surface. In this paper, FTIR analysis was used to analyze the OCFG type of coal surface. The adsorption behavior of HOC on different OCFG surfaces was investigated using molecular dynamics simulation. The results indicated the presence of OCFG such as -OH, -COOH, -C=O, and -COCH₃ on the coal surface. In conditions without water, the effect of OCFG on HOC adsorption capability follows the order -COOH > -C=O > -OH > -COCH₃. In an aqueous solution, the effect of OCFG on HOC adsorption capability follows the order -C=O>-COCH₃>-OH>-COOH. Moreover, the hydrophilicity of OCFG is the key factor that affects the adsorption effect of HOC. In other words, the adsorption effect of HOC on the coal surface in an aqueous solution does not depend on the strength of the interaction between the OCFG and HOC in the absence of water, but on the hydrophilicity of the OCFG. The -COOH and -OH on the coal surface are not conducive to the adsorption of HOC onto the coal surface. Masking the -COOH and -OH of the coal surface is beneficial in improving the coal flotation performance with HOC as a collector.

Słowa kluczowe

EN

oxygen-containing functional groups; hydrocarbon oily collectors; molecular dynamics simulation; coal surfaces; adsorption

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2022
• Tom: Vol. 58, iss. 4
• Strony: art. no. 149937
• Opis fizyczny: Bibliogr. 51 poz., rys., wykr.

Twórcy

autor

Wan He

• School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
• Oulu Mining School, University of Oulu, Oulu, FI-90014, Finland

autor

Hu Xianglin

• School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

autor

Luukkanen Saija

• Oulu Mining School, University of Oulu, Oulu, FI-90014, Finland

autor

Qu Juanping

• School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

autor

Zhang Chonghui

• School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

autor

Xue Jiwei

• School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

autor

Li Hui

• College of Resource and Civil Engineering, Northeastern University, Shenyang, 110819, China

autor

Yang Wei

• School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

autor

Yang Shenghong

• Oulu Mining School, University of Oulu, Oulu, FI-90014, Finland

autor

Bu Xianzhong

• School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).