Binary Solvent Extractions of Upper Freeport Coal
| Autor: | Gary R. Dyrkacz, C. A. A. Bloomquist |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Carbon disulfide
Organic base business.industry General Chemical Engineering Extraction (chemistry) Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element Aromaticity Tetracyanoethylene Solvent chemistry.chemical_compound Fuel Technology chemistry Organic chemistry Coal business Carbon |
| Zdroj: | Energy & Fuels. 15:1409-1413 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef010036s |
| Popis: | Different organic bases, primarily with carbon disulfide as co-solvent, were used to probe the nature of the binary solvent extractions of Upper Freeport coal. The effect of tetracyanoethylene addition on extract yields was also examined. Amides and cyclic ureas where found to all be good extractants, but were not as efficient as N-methylpyrrolidone(I), with one exception. CS2/N-methylpyridone was found to be a better solvent than CS2/(I). The results suggest that solvents which have similar basicities, but have a more flattened shape, such as aromatic rings compared to saturated rings, are better extraction agents. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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