(19)

(11)

EP 4 445 085 A1

(12)

(43) Date of publication: 16.10.2024 Bulletin 2024/42 (21) Application number: 22834521.1 (22) Date of filing: 07.12.2022

(51) International Patent Classification (IPC):  F27B 1/00(2006.01) F27B 1/16(2006.01) F27B 9/14(2006.01) F27D 17/00(2006.01) F27B 1/08(2006.01) F27B 9/06(2006.01) F27D 11/12(2006.01) C21B 13/02(2006.01) (52) Cooperative Patent Classification (CPC): F27B 1/08; F27B 1/005; F27B 1/16; F27B 9/062; F27B 9/142; F27D 11/12; F27D 17/004; C21B 13/02; C21B 13/026; C21B 2100/66; C21B 2100/80; C21B 13/0033; C21B 13/0073; C22B 7/04; C22B 19/00; C21B 13/0086; C21B 3/04; C22B 5/14 (86) International application number: PCT/EP2022/084781 (87) International publication number: WO 2023/104881 (15.06.2023 Gazette 2023/24)

(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: 07.12.2021 NL 2030051 (71) Applicant: Pronovation B.V. 2371 DG Roelofarendsveen (NL)	(72) Inventor: PRONKER, Wiebe Feije 2371 DG Roelofarendsveen (NL) (74) Representative: EP&C  P.O. Box 3241 2280 GE Rijswijk 2280 GE Rijswijk (NL)