Multistage butylation of coals in a potassium-liquid ammonia system
Authors:
- Helena Wachowska,
- Mieczysław Kozłowski
Abstract
The reductive butylation of different rank coals was investigated using metallic potassium and butyl iodide in liquid ammonia. Multistage butylation was carried out until a high conversion of coal organic substance to products soluble in methylene chloride was reached. The extractability of butylated coals depended on the rank of coal. The best results were obtained for orthocoking coal. The degree of coal conversion to products soluble in methylene chloride after the four-stage butylation reached 93 wt%. The extracts were characterized by means of i.r. and
1
H n.m.r. spectroscopy, molecular weight determination and elemental analysis. On the basis of the n.m.r. spectra, changes in structural parameters of extracts occurring in the course of reductive butylation were determined. © 1993.
- Record ID
- UAMbab1daa10b43421ab9ab9488948ff92a
- Author
- Journal series
- Fuel, ISSN 0016-2361
- Issue year
- 1993
- Vol
- 72
- Pages
- 435-442
- ASJC Classification
- ; ; ;
- DOI
- DOI:10.1016/0016-2361(93)90067-C opening in a new tab
- Language
- en English
- Score (nominal)
- 40
- Score source
- journalList
- Publication indicators
- = 21; : 1999 = 1.117; : 2006 = 1.358 (2) - 2007=2.041 (5)
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- Uniform Resource Identifier
- https://researchportal.amu.edu.pl/info/article/UAMbab1daa10b43421ab9ab9488948ff92a/
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perishopening in a new tab system.