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Solubilization of coal by reductive acetylation

✍ Scribed by C.K.S. Nair; B.K. Kumari; M. Pardhasaradhi

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
217 KB
Volume
68
Category
Article
ISSN
0016-2361

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✦ Synopsis

Reductive acetylation of a low rank high volatile bituminous coal in acetic acid increased the solubiiity in pyridine from 16 to 39%. Although reduction of carbonyl groups took place, as indicated by i.r. spectra. the acetyl value did not increase markedly compared with simple acetylation. A study on model compounds indicated no scission of C-C bonds but did show the elimination of carbonyl oxygen with dimerization. The enhanced pyridine solubility of the treated coal is possibly due to a decrease in non-covalent polar interactions between the mobile and macromolecular phases of the coal structure.

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