Enhancement of Flotation Performance of Oxidized Coal by the Mixture of Laurylamine Dipropylene Diamine and Kerosene
| Autor: | Muhammad Bilal, Qingshan Zhang, Chenkai Niu, Xiangning Bu, Chao Ni, Yaoli Peng |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Kerosene emulsified kerosene Clean coal business.industry Chemistry technology industry and agriculture Geology froth stability Mineralogy Geotechnical Engineering and Engineering Geology complex mixtures Surface tension Contact angle Hydrocarbon Adsorption Chemical engineering Reagent flotation of oxidized coal Coal laurylamine dipropylene diamine business coal hydrophobicity QE351-399.2 |
| Zdroj: | Minerals Volume 11 Issue 11 Minerals, Vol 11, Iss 1271, p 1271 (2021) |
| ISSN: | 2075-163X |
| DOI: | 10.3390/min11111271 |
| Popis: | Conventional hydrocarbon oil cannot adhere effectively to oxidized coal, resulting in a low yield of clean coal. In this study, a high-speed homogenizer was used to emulsify LDD (laurylamine dipropylene diamine) and kerosene, which enhanced the flotation efficiency of oxidized coal. The flotation results showed an increase from 4.12% (only kerosene) to 23.33% (emulsified oil). An increase in contact angle indicated that the mixture reagent can increase the hydrophobicity of coal particles, which is attributed to the adsorption of LDD onto the coal particle surface and the decrease of the oil droplet A lower surface tension of LDD allows it to produce a stable layer of froth than the layer generated by kerosene alone. |
| Databáze: | OpenAIRE |
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