EP 1148155 B2 20110914 - Process for producing alkali metal and ammonium peroxide disulphate
Title (en)
Process for producing alkali metal and ammonium peroxide disulphate
Title (de)
Verfahren zur Herstellung von Alkalimetall- und Ammoniumperoxidsulfat
Title (fr)
Procédé de production de bisulfate peroxyde de métal alcalin et d'ammonium
Publication
Application
Priority
DE 10019683 A 20000420
Abstract (en)
[origin: EP1148155A2] Production of ammonium-, Na- or K-peroxodisulfate involves anodic oxidation of an aqueous electrolyte containing the corresponding sulfate and/or hydrogen sulfate in an electrolytic cell with analyte and catholyte chambers with a separator or a gas diffusion cathode. The anode comprises an electrically-conductive carrier with a diamond layer made conductive by doping with a tri- or penta-valent element. The analyte has no added promoter.
IPC 8 full level
C01B 15/08 (2006.01); C25B 1/28 (2006.01); C25B 1/30 (2006.01); C25B 11/04 (2006.01); C25B 11/06 (2006.01)
CPC (source: EP KR US)
Citation (opposition)
Opponent :
- DD 129219 A1 19780104 - THIELE WOLFGANG, et al
- P.A.MICHAUD,E.MAHÉ ET AL., ELECTROCHEMICAL AND SOLID-STATE LETTERS,3, 2000, pages 77
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1148155 A2 20011024; EP 1148155 A3 20011121; EP 1148155 B1 20050608; EP 1148155 B2 20110914; AR 027804 A1 20030409; AT E297477 T1 20050615; AU 3710001 A 20011025; BR 0101530 A 20011204; CA 2344499 A1 20011020; CA 2344499 C 20100803; CZ 20011317 A3 20020213; DE 10019683 A1 20011025; DE 50106427 D1 20050714; ES 2240269 T3 20051016; ES 2240269 T5 20120203; IL 142638 A0 20020310; JP 2002004073 A 20020109; JP 2013136842 A 20130711; JP 5259899 B2 20130807; JP 5570627 B2 20140813; KR 20010098758 A 20011108; MX PA01003938 A 20030820; PL 347119 A1 20011022; SK 5202001 A3 20020107; TW 524893 B 20030321; US 2002014418 A1 20020207; US 6503386 B2 20030107; ZA 200103205 B 20011023
DOCDB simple family (application)
EP 01109242 A 20010414; AR P010101788 A 20010417; AT 01109242 T 20010414; AU 3710001 A 20010418; BR 0101530 A 20010419; CA 2344499 A 20010419; CZ 20011317 A 20010411; DE 10019683 A 20000420; DE 50106427 T 20010414; ES 01109242 T 20010414; IL 14263801 A 20010417; JP 2001119889 A 20010418; JP 2013038806 A 20130228; KR 20010021198 A 20010419; MX PA01003938 A 20010419; PL 34711901 A 20010418; SK 5202001 A 20010417; TW 90109066 A 20010416; US 82535201 A 20010404; ZA 200103205 A 20010419