Three Dispersants Enhance Dispersion Behavior and Mechanism of Fine Dolomite

SHI Jingyang; LUO Na; TANG Jiayan

doi:10.13779/j.cnki.issn1001−0076.2023.01.009

2023 Vol. 43, No. 1

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SHI Jingyang, LUO Na, TANG Jiayan. Three Dispersants Enhance Dispersion Behavior and Mechanism of Fine Dolomite[J]. Conservation and Utilization of Mineral Resources, 2023, 43(1): 92-97. doi: 10.13779/j.cnki.issn1001−0076.2023.01.009

Citation:

SHI Jingyang, LUO Na, TANG Jiayan. Three Dispersants Enhance Dispersion Behavior and Mechanism of Fine Dolomite[J]. Conservation and Utilization of Mineral Resources, 2023, 43(1): 92-97. doi: 10.13779/j.cnki.issn1001−0076.2023.01.009

Three Dispersants Enhance Dispersion Behavior and Mechanism of Fine Dolomite

1.
School of Mining and Coal, Inner Mongolia University of Science and Technology, Baotou 014010, China
2.
Key Laboratory of Mining Engineering of Inner Mongolia, Inner Mongolia University of Science and Technology, Baotou 014010, China

Received Date: 01 July 2022

Publish Date: 15 February 2023

Abstract

Abstract

In order to study the dispersion behavior of fine dolomite pulp system, through the single mineral sedimentation experiment, solution pH and dispersant type (ZSC, ZSS, ZSP-1, ZSP-2, ZSP-3) and dosages on the influence of dolomite dispersion. In this study, the effect of dispersant on the Zeta potential, infrared spectrum analysis and wetting contact angle measurement of fine dolomite were investigated. Results indicated that the pH value had a great influence on the dispersion of the system without adding dispersant. The dispersion rate of alkaline conditions (20%) was about 15% higher than that of acidic conditions (5%). The order of dispersing ability of dispersant to dolomite minerals was ZSP-1>ZSP-2>ZSP-3>ZSS>ZSC. The analysis showed that different kinds of dispersants mainly acted together in the form of physical adsorption and chemical adsorption on the surface of fine dolomite. The dispersant increased the electrostatic repulsion of the fine dolomite, while enhanced the hydrophobicity of the fine dolomite, thereby improving the dispersion of dolomite.
- micro-fine /
- dolomite /
- dispersion behavior /
- dispersant

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References

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