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Zum Stand der Schwefelsäure‐Produktion
Author(s) -
Becker Hans Jürgen,
Gösele Wilhelm,
Neth Norbert,
Adlkofer Jürgen
Publication year - 1979
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.330510806
Subject(s) - catalysis , vanadium , pentoxide , raw material , sulfur , chemistry , combustion , metal , waste management , inorganic chemistry , materials science , organic chemistry , engineering
Sulphuric acid production – state of the art. Apart from pyrites and other metal sulfides, sulphur is mainly used today as raw material for the production of sulphuric acid. The oxidation of roaster gases or sulphur combustion gases is performed almost exclusively in multistage reactors over catalysts containing vanadium pentoxide. SO 2 conversions of more than 99.5% are achieved by intermediate absorption of SO 3 (“double catalysis”) and by using efficient catalysts. To further improve the economics of the manufacturing process, new technologies are being tried out, and attempts are being made to develop even more active catalysts. Although there is still some uncertainty regarding the kinetics of SO 2 oxidation, empirical findings can be explained quite satisfactorily with existing models.