Multistage reduction of coals in the potassium/liquid ammonia system
Authors:
- Helena Wachowska,
- Mieczysław Kozłowski
Abstract
Two Polish coals and an anthracite were subjected to four-stage reduction in potassium/liquid ammonia. After each stage, solubility of the products in methylene chloride was studied. Extraction yield was found to increase with increasing number of stages. The highest yield of transformation to soluble products was obtained for the orthocoking coal. The 1H n.m.r. investigations proved that aromaticity of the extracts from flame coal is lower than that of the orthocoking coal extracts. The main substituents of the aromatic system of the average structural unit of the extracts from orthocoking coal are alkyl or naphthene groups. In the case of flame coal their contribution is lower and can be related to a higher contribution of oxygen groups. © 1995.
- Record ID
- UAM9339b4cae52b4a84885eb3067411f05e
- Author
- Journal series
- Fuel, ISSN 0016-2361
- Issue year
- 1995
- Vol
- 74
- Pages
- 1398-1403
- ASJC Classification
- ; ; ;
- DOI
- DOI:10.1016/0016-2361(95)00092-J Opening in a new tab
- Language
- (en) English
- Score (nominal)
- 0
- Score source
- journalList
- Publication indicators
- = 12; = 12; : 1999 = 1.117; : 2006 (2 years) = 1.358 - 2007 (5 years) =2.041
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- Uniform Resource Identifier
- https://researchportal.amu.edu.pl/info/article/UAM9339b4cae52b4a84885eb3067411f05e/
- URN
urn:amu-prod:UAM9339b4cae52b4a84885eb3067411f05e
* 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.