(19)
(11) EP 4 519 479 A1

(12)

(43) Date of publication:
12.03.2025 Bulletin 2025/11

(21) Application number: 23725151.7

(22) Date of filing: 04.05.2023
(51) International Patent Classification (IPC): 
C23G 1/36(2006.01)
C23G 3/02(2006.01)
B01D 61/58(2006.01)
C23G 1/08(2006.01)
B01D 61/14(2006.01)
B01D 63/06(2006.01)
(52) Cooperative Patent Classification (CPC):
C23G 1/36; C23G 1/081; C23G 3/027; B01D 61/147; B01D 63/06; B01D 2325/42; B01D 61/58; B01D 71/261; B01D 2311/06
(86) International application number:
PCT/EP2023/061752
(87) International publication number:
WO 2023/213923 (09.11.2023 Gazette 2023/45)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 06.05.2022 EP 22172132

(71) Applicant: John Cockerill UVK GmbH
56410 Montabaur (DE)

(72) Inventor:
  • ZOELLNER, Andreas
    40878 Ratingen (DE)

(74) Representative: Kutzenberger Wolff & Partner 
Waidmarkt 11
50676 Köln
50676 Köln (DE)

   


(54) METHOD OF TREATING A PICKLING SOLUTION FOR A PICKLING PROCESS