Improved Fine Coal Dewatering by Ultrasonic Pretreatment and Dewatering Aids
| Autor: | Fırat Burat, G. Önal, Ayhan Ali Sirkeci |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
business.industry Mechanical Engineering technology industry and agriculture General Chemistry Polyethylene glycol Geotechnical Engineering and Engineering Geology complex mixtures Dewatering Surface tension Contact angle chemistry.chemical_compound chemistry Chemical engineering Reagent Economic Geology Coal business Water content Coal slurry |
| Zdroj: | Mineral Processing and Extractive Metallurgy Review. 36:129-135 |
| ISSN: | 1547-7401 0882-7508 |
| Popis: | The effects of ultrasonic pretreatment and surface active reagents to improve the efficiency of fine coal dewatering in high frequency vibrating screen have been carried out. The results showed that hydrophobic surface active reagents increased the contact angle and decreased surface tension of the solution reducing the moisture content of fine coal particles. Polyethylene glycol 400 monooleate (PEG-400) was found to be the most effective reagent. Furthermore, when ultrasonic pretreatment was introduced to the fine coal slurry, the residual total moisture content of the fine coal was further decreased. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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