Journal of thermal analysis

, Volume 37, Issue 4, pp 763–768 | Cite as

Thermal analysis of bitumens from black coal, extracted successively with different solvents

  • S. Malovska
  • D. Rustschev
  • M. Angelova-Dodova


A successive extraction of bitumes from black coal was carried out using the following solvents: petroleum ether, petroleumether-benzene (1∶1), benzene, benzene-ethyl ether (1∶1), ethyl ether, ethyl ether ethanole (1∶1), ethanol. These extract organic products as follows: 0.06, 0.16, 0.11, 0.21, 0.07, 0.29 and 0.70% respectively. The obtained by the above mentioned solvents chujniuds were compounds to the thermal and IR-spectral analysis.


Polymer Ether Ethyl Benzene Petroleum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Mittels folgender Lösungsmittel wurde eine sukzessive Extraktion von Bitumen aus Steinkohle durchgeführt: Petrolether, Petrolether-Benzol (1∶1), Benzol, Benzol-Ethylether (1∶1), Ethylether, Ethylether-Ethanol (1∶1), Ethanol. In dieser Reihenfolge konnten organische Produkte zu 0.06, 0.16, 0.11, 0.21, 0.07, 0.29 bzw. 0.70 % extrahiert werden. Die durch aufgeführte Lösungsmittel erhaltenen Verbindungen wurden einer Thermound einer IR-Analyse unterzogen.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    D. Rustschev, Chemie Analytique, 45 (1963) 372.Google Scholar
  2. 2.
    D. Rustschev and S. Mihaylov, Zh. Priklad. Khimii, XXVIII (1965) 925.Google Scholar
  3. 3.
    D. Rustschev and D. Atanassov, J. Thermal Anal., 27 (1983) 439.Google Scholar
  4. 4.
    V. Zhukov, N. Trechko and Y. Tserlyukevich, Khimiya Tverdogo Topliva, 4 (1980) 85.Google Scholar
  5. 5.
    S. Zubko, V. Zhukov and E. Yurkevich, Khimiya Tverdogo Topliva, 6 (1981) 67.Google Scholar
  6. 6.
    I. Kichova, V. Minkova and D. Rustschev, Godishnik VHTI-Sofia, XXVII (1987) 137.Google Scholar
  7. 7.
    S. Malovska, D. Rustschev and M. Dodova-Angelova, National Scientific and Technical Conference on New Technologies, Raw Materials and Products in Ferrous Metallurgy (17–18 May 1990).Google Scholar

Copyright information

© Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest 1991

Authors and Affiliations

  • S. Malovska
    • 1
  • D. Rustschev
    • 1
  • M. Angelova-Dodova
    • 1
  1. 1.Higher Institute of Chemical TechnologySofiaBulgaria

Personalised recommendations