Study on the Adsorption Properties of Coal Gasification Slag to Xanthate in Mine Wastewater

CHEN Jiayi; NIU Jida; LYU Jianqiao; LI Xiaoteng; LI Lin

doi:10.3969/j.issn.1000-6532.2024.02.031

2024 No. 2

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Article navigation > Multipurpose Utilization of Mineral Resources > 2024 > 45(2): 190-200

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CHEN Jiayi, NIU Jida, LYU Jianqiao, LI Xiaoteng, LI Lin. Study on the Adsorption Properties of Coal Gasification Slag to Xanthate in Mine Wastewater[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(2): 190-200. doi: 10.3969/j.issn.1000-6532.2024.02.031

Citation:

CHEN Jiayi, NIU Jida, LYU Jianqiao, LI Xiaoteng, LI Lin. Study on the Adsorption Properties of Coal Gasification Slag to Xanthate in Mine Wastewater[J]. Multipurpose Utilization of Mineral Resources, 2024, 45(2): 190-200. doi: 10.3969/j.issn.1000-6532.2024.02.031

Study on the Adsorption Properties of Coal Gasification Slag to Xanthate in Mine Wastewater

School of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong, China

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Corresponding author: LI Lin, lilin_1983123@sdust.edu.cn

Received Date: 03 July 2023

Publish Date: 25 April 2024

Abstract

Abstract

This is an article in the field of environmental engineering. In this article, the composition, structural characteristics and surface properties of coal gasification crude slag (CGCS) and coal gasification fine slag (CGFS) were characterized by X-ray fluorescence analyzer, scanning electron microscopy, FTIR spectroscopy, specific surface area and pore size analysis, and the results showed that CGFS had a more developed pore size structure and larger specific surface area. The adsorption test results show that the adsorption of n-butyl sodium xanthate by the two coal gasification slags is consistent with the Langmuir adsorption isotherm model and is a spontaneous heat process, which conforms to the quasi-secondary kinetic model, and the adsorption rate constant CGFS > CGCS. Among them, the adsorption performance of CGFS to n-butyl sodium xantho can reach 181.95 mg/g due to CGCS.
- Environmental engineering /
- Coal gasification slag /
- Xanthate /
- Adsorption properties

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References

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