Zum Stand der Schwefelsäure-Produktion

✍ Scribed by Dr. Hans Jürgen Becker; Dr. Wilhelm Gösele; Dr. Norbert Neth; Dr. Jürgen Adlkofer

• Publisher: John Wiley and Sons
• Year: 1979
• Tongue: German
• Weight: 841 KB
• Volume: 51
• Category: Article
• ISSN: 0009-286X
• DOI: 10.1002/cite.330510806

✦ Synopsis

Abstract

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.