Paper Title:
Organosulfur Compounds in CS2 Extractable-Fractions from Four Chinese Coals Oxidized with NaOCl
  Abstract

Four Chinese coals were oxidized with NaOCl aqueous solution under mild conditions. The reaction mixture was extracted with diethyl ether, carbon disulfide, petroleum ether, acetic ester and benzene sequentially. A series of organosulfur compounds (OSCs) were identified in the carbon disulfide fraction from the oxidized coals by GC/MS analysis but no OSCs were detected from other fractions except for 3 thiophene polycarboxylic acids found in ether-extraction. Some new types of sulfur function groups were also detected in the coal oxidation products which were not previously reported from coals. The results revealed that macromolecule OSCs in coals can be effectively degraded to water soluble small molecules with NaOCl aqueous solution, which can be enriched by carbon disulfide. Understanding the distribution of OSCs forms in coals matrix is useful in high value-added utilization of coals and coal desulphurization technologies.

  Info
Periodical
Advanced Materials Research (Volumes 236-238)
Edited by
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
Pages
888-891
DOI
10.4028/www.scientific.net/AMR.236-238.888
Citation
G. Z. Gong, X. Y. Wei, S. L. Wang, T. Yao, S. P. Liu, Z. M. Zong, "Organosulfur Compounds in CS2 Extractable-Fractions from Four Chinese Coals Oxidized with NaOCl", Advanced Materials Research, Vols. 236-238, pp. 888-891, 2011
Online since
May 2011
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