(19)
(11) EP 4 486 821 A1

(12)

(43) Date of publication:
08.01.2025 Bulletin 2025/02

(21) Application number: 23774076.6

(22) Date of filing: 23.03.2023
(51) International Patent Classification (IPC): 
C08H 7/00(2011.01)
C05F 11/02(2006.01)
C07C 63/00(2006.01)
B01D 11/02(2006.01)
C07C 51/00(2006.01)
C07G 99/00(2009.01)
(52) Cooperative Patent Classification (CPC):
B01D 9/0054; B01D 11/0284; B01D 11/0288; C05F 11/02; C07G 99/00; C08H 6/00
(86) International application number:
PCT/HU2023/050011
(87) International publication number:
WO 2023/180780 (28.09.2023 Gazette 2023/39)
(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: 25.03.2022 HU 2200091

(71) Applicant: Draconic Technology Kft.
8100 Várpalota (HU)

(72) Inventor:
  • SOLYMOSI, Péter
    8420 Zirc (HU)

(74) Representative: Danubia Patent & Law Office LLC 
Bajcsy-Zsilinszky út 16
1051 Budapest
1051 Budapest (HU)

   


(54) PROCESS FOR THE PREPARATION OF FOOD-GRADE FULVIC ACID AND/OR HUMIC ACID