Progress of Dispersants for Coal Water Slurry
Dispersants, serving as an essential raw material in the formulation of coal water slurry, offer an economical and convenient solution for enhancing slurry concentration, thus stimulating significant interest in the development of novel and efficient dispersants. This paper intends to illuminate the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-11-01
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| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/28/23/7683 |
| _version_ | 1797399827897647104 |
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| author | Xiaotian Liu Shan Wang Ning Liu Bo Wei Tian An |
| author_facet | Xiaotian Liu Shan Wang Ning Liu Bo Wei Tian An |
| author_sort | Xiaotian Liu |
| collection | DOAJ |
| description | Dispersants, serving as an essential raw material in the formulation of coal water slurry, offer an economical and convenient solution for enhancing slurry concentration, thus stimulating significant interest in the development of novel and efficient dispersants. This paper intends to illuminate the evolution of dispersants by examining both the traditional and the newly conceived types and elaborating on their respective mechanisms of influence on slurry performance. Dispersants can be classified into anionic, cationic, amphoteric, and non-ionic types based on their dissociation properties. They can be produced by modifying either natural or synthetic products. The molecular structure of a dispersant allows for further categorization into one-dimensional, two-dimensional, or three-dimensional structure dispersants. This document succinctly outlines dispersants derived from natural products, three-dimensional structure dispersants, common anionic dispersants such as lignin and naphthalene, and amphoteric and non-ionic dispersants. Subsequently, the adsorption mechanism of dispersants, governed by either electrostatic attraction or functional group effects, is elucidated. The three mechanisms through which dispersants alter the surface properties of coal, namely the wetting dispersion effect, electrostatic repulsion effect, and steric hindrance effect, are also explained. The paper concludes with an exploration of the challenges and emerging trends in the domain of dispersants. |
| first_indexed | 2024-03-09T01:46:43Z |
| format | Article |
| id | doaj.art-34cafea820e041c489b853c07b95c1f1 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T01:46:43Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-34cafea820e041c489b853c07b95c1f12023-12-08T15:22:01ZengMDPI AGMolecules1420-30492023-11-012823768310.3390/molecules28237683Progress of Dispersants for Coal Water SlurryXiaotian Liu0Shan Wang1Ning Liu2Bo Wei3Tian An4Key Laboratory of Coal Clean Conversion & Chemical Engineering Process, Xinjiang Uygur Autonomous Region, School of Chemical Engineering, Xinjiang University, Urumqi 830046, ChinaKey Laboratory of Coal Clean Conversion & Chemical Engineering Process, Xinjiang Uygur Autonomous Region, School of Chemical Engineering, Xinjiang University, Urumqi 830046, ChinaKey Laboratory of Coal Clean Conversion & Chemical Engineering Process, Xinjiang Uygur Autonomous Region, School of Chemical Engineering, Xinjiang University, Urumqi 830046, ChinaKey Laboratory of Coal Clean Conversion & Chemical Engineering Process, Xinjiang Uygur Autonomous Region, School of Chemical Engineering, Xinjiang University, Urumqi 830046, ChinaKey Laboratory of Coal Clean Conversion & Chemical Engineering Process, Xinjiang Uygur Autonomous Region, School of Chemical Engineering, Xinjiang University, Urumqi 830046, ChinaDispersants, serving as an essential raw material in the formulation of coal water slurry, offer an economical and convenient solution for enhancing slurry concentration, thus stimulating significant interest in the development of novel and efficient dispersants. This paper intends to illuminate the evolution of dispersants by examining both the traditional and the newly conceived types and elaborating on their respective mechanisms of influence on slurry performance. Dispersants can be classified into anionic, cationic, amphoteric, and non-ionic types based on their dissociation properties. They can be produced by modifying either natural or synthetic products. The molecular structure of a dispersant allows for further categorization into one-dimensional, two-dimensional, or three-dimensional structure dispersants. This document succinctly outlines dispersants derived from natural products, three-dimensional structure dispersants, common anionic dispersants such as lignin and naphthalene, and amphoteric and non-ionic dispersants. Subsequently, the adsorption mechanism of dispersants, governed by either electrostatic attraction or functional group effects, is elucidated. The three mechanisms through which dispersants alter the surface properties of coal, namely the wetting dispersion effect, electrostatic repulsion effect, and steric hindrance effect, are also explained. The paper concludes with an exploration of the challenges and emerging trends in the domain of dispersants.https://www.mdpi.com/1420-3049/28/23/7683coal water slurry dispersantdispersant typethree-dimensional structure dispersantadsorption performancedispersion mechanism |
| spellingShingle | Xiaotian Liu Shan Wang Ning Liu Bo Wei Tian An Progress of Dispersants for Coal Water Slurry Molecules coal water slurry dispersant dispersant type three-dimensional structure dispersant adsorption performance dispersion mechanism |
| title | Progress of Dispersants for Coal Water Slurry |
| title_full | Progress of Dispersants for Coal Water Slurry |
| title_fullStr | Progress of Dispersants for Coal Water Slurry |
| title_full_unstemmed | Progress of Dispersants for Coal Water Slurry |
| title_short | Progress of Dispersants for Coal Water Slurry |
| title_sort | progress of dispersants for coal water slurry |
| topic | coal water slurry dispersant dispersant type three-dimensional structure dispersant adsorption performance dispersion mechanism |
| url | https://www.mdpi.com/1420-3049/28/23/7683 |
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