Desulphurisation of waste gases

Details Desulphurisation of waste gases Desulphurisation of waste gases

B - Operations, Transporting

01

D

B01D 53/86 (2006.01) B01D 53/50 (2006.01) B01D 53/78 (2006.01) C01B 7/09 (2006.01) C01B 17/74 (2006.01) C01B 17/775 (2006.01)

Patent

CA 2140128

2140128 9401205 PCTABS00030 The present invention relates to a process for the removal of sulphur dioxide from waste gases which process comprises contacting a waste gas containing sulphur dioxide with an aqueous solution containing sulphuric acid, hydrogen bromide and bromide to form sulphuric acid and hydrogen bromide; catalytically oxidising in the vapour phase the hydrogen bromide formed to bromine and thereafter recycling the bromine to the first step of the process.

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