Conversion of Hydrogen Sulfide and Sulfur Dioxide to Polymeric Sulfur

Authors

  • M. Olšovský Faculty of Industrial Technologies TnUAD, Púchov
  • V. Macho Faculty of Industrial Technologies TnUAD, Púchov
  • R. Fujerík Continental Matador Rubber Púchov
  • Z. Plevák Continental Matador Rubber Púchov
  • Ľ. Jureček VUP Prievidza

Keywords:

sulphane, sulphur dioxide, cyclooctameric sulphur, polymeric sulphur, copolymeric sulphur, acidity of the aqueous-alkaline environment, curing agents

Abstract

The article deals with the conversion of hydrogen sulfide and sulfur dioxide to polymeric sulfur H2S is oxidized with SO2 at a mole ratio of 2:1 in aqueous-alcoholic H2SO4 or HCl in the presence of ethylene glycols (up to poly(ethylene glycol) or glycerol) at 6–90 °C. The total yield of S is ca. 99.7 %. The product contains 70–80 wt.% of polymeric S in a mixture with S cyclooctamer. At 20–40 °C, the content of polymeric S is 70.4–70.9 % and its thermal stability is 52–75 %. Smaller amounts of polymeric S formed when ethylene glycol or higher alcohols are used. The use of glycerol leads to a higher thermal stability of polymeric S.

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Published

2012-04-15

How to Cite

Olšovský, M., Macho, V., Fujerík, R., Plevák, Z., & Jureček, Ľ. (2012). Conversion of Hydrogen Sulfide and Sulfur Dioxide to Polymeric Sulfur. Chemické Listy, 106(4), 299–302. Retrieved from http://chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/981

Issue

Vol. 106 No. 4 (2012)

Section

Articles

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