✦ LIBER ✦
97/02547 Supercritical fluid extraction of a high-ash Brazilian coal extraction with pure ethanol and isopropanol and their aqueous solutions
- Publisher
- Elsevier Science
- Year
- 1997
- Weight
- 199 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0140-6701
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✦ Synopsis
The presence of aggregated structures in pyridine coal extracts are indicated by small angle neutron scattering studies of coal-extract solutions. However, no such aggregated structures exist in coal extracts with a carbon disulfide-N-methyl-2-pyrrolidane mixed solvent, which may indicate that. in a thermodynamic sense. pyridine is not such a good solvent for coal.