Title of Invention

PROCESS AND PLANT FOR THE MANUFACTURE OF SULPHURIC ACID FROM GASES RICH IN SULPHUR DIOXIDE

Abstract The present invention is concerned with a process and a plant for the production of sulphuric acid wherein a sulphur dioxide-containing feed gas is converted, at least in part, with oxygen in at least two contact stage of main contacts arranged in series, to generate sulphur trioxide and wherein generated sulphur trioxide-containing gas is conducted to an absober and converted therein to sulphuric acid. In order to be able to economically process feed gases of a sulphur dioxide content of between 13 and 66% by volume to sulphuric acid, using conventional catalysts, it is suggested to withdraw from a contact stage connected upstream of the last main contact stage, a partial stream of the sulphur dioxide-and sulphur trioxide –containing gas, to mix the said partial stream with the feed gas to generate a contact gas of a sulphur dioxide content of more than 13% by volume to return the same to the first contact stage.
Full Text N/A

Documents:

302-MUMNP-2005-ASSIGNMENT(13-12-2012).pdf

302-mumnp-2005-cancelled pages(24-07-2007).pdf

302-mumnp-2005-claims(granted)-(24-07-2007).doc

302-mumnp-2005-claims(granted)-(24-07-2007).pdf

302-mumnp-2005-correspondence(04-07-2007).pdf

302-MUMNP-2005-CORRESPONDENCE(13-12-2012).pdf

302-mumnp-2005-correspondence(ipo)-(02-04-2008).pdf

302-mumnp-2005-drawings(24-07-2007).pdf

302-mumnp-2005-form 1(19-04-2005).pdf

302-MUMNP-2005-FORM 16(13-12-2012).pdf

302-mumnp-2005-form 18(12-12-2005).pdf

302-mumnp-2005-form 2(granted)-(24-07-2007).doc

302-mumnp-2005-form 2(granted)-(24-07-2007).pdf

302-mumnp-2005-form 26(01-12-2006).pdf

302-MUMNP-2005-FORM 26(13-12-2012).pdf

302-mumnp-2005-form 3(19-04-2005).pdf

302-mumnp-2005-form 5(19-04-2005).pdf

302-mumnp-2005-form-pct-isa-210(19-04-2005).pdf

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Patent Number 218462
Indian Patent Application Number 302/MUMNP/2005
PG Journal Number 19/2008
Publication Date 09-May-2008
Grant Date 02-Apr-2008
Date of Filing 19-Apr-2005
Name of Patentee OUTOKUMPU OYJ
Applicant Address RIIHITONTUNTIE 7, FIN-02200 ESPOO
Inventors:
# Inventor's Name Inventor's Address
1 SEITZ EKKEHART DANIEL-GREINER-WEG3, 64342 SEEHEIM-JUGENHEIM
2 MULLER, HERMANN AUF DEM SEFI 15, 61462 KONIGSTEIN
3 DAUM KARL- HEINZ SENEFELDER STRASSE 17, 65205 WIESBADEN, GERMANY
4 ANASTASIJEVIC NIKOLA ZUM NIDDERSTAGE 11, 63674 ALTENSTADT
PCT International Classification Number C01B17/765
PCT International Application Number PCT/EP2003/011659
PCT International Filing date 2003-10-21
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10249782.6 2002-10-24 Germany