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Kinetics and Catalysis

, Volume 41, Issue 2, pp 216–221 | Cite as

Dimethyl disulfide catalytic conversion into methanethiol in the presence of water

  • A. V. Mashkina1
Article

Abstract

The processes of dimethyl disulfide conversion yielding methanethiol, ethylene and hydrogen sulfide, and the disproportionation of methanethiol formed in this reaction into hydrogen sulfide and dimethyl sulfide proceed on acid-base type catalysts at 350°C in the presence of water. Catalysts with weak proton sites exhibit low activity, which increases with the increasing surface acidity. Catalysts with weak Lewis acid sites and strong basic sites are most active and selective in the reaction of methanethiol formation. The presence of water inhibits the side reaction of disproportionation, thus enhancing the methanethiol formation selectivity.

Keywords

Hydrogen Sulfide Lewis Acid Site DMDS Methanethiol Dimethyl Disulfide 
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.

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Copyright information

© MAIK “Nauka/Interperiodica” 2000

Authors and Affiliations

  • A. V. Mashkina1
    • 1
  1. 1.Boreskov Institute of Catalysis, Siberian DivisionRussian Academy of SciencesNovosibirskRussia

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