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EP 4 739 625 A1

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(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24838959.5 (22) Date of filing: 03.05.2024

(51) International Patent Classification (IPC):  C01B 25/45(2006.01) H01M 10/0525(2010.01) B02C 23/00(2006.01) H01M 4/58(2010.01) H01M 10/54(2006.01) (52) Cooperative Patent Classification (CPC): Y02W 30/84; Y02P 10/20; C01B 25/45; H01M 10/54; H01M 4/5825; C01B 25/375; C01P 2006/80 (86) International application number: PCT/IB2024/054305 (87) International publication number: WO 2025/012711 (16.01.2025 Gazette 2025/03)

(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: GE KH MA MD TN (30) Priority: 07.07.2023 IN 202311045805 (71) Applicant: Attero Recycling Pvt. Ltd. Roorkee, Uttarakhand 247661 (IN)

(72) Inventors: BARIK, Smruti Prakash Haridwar Uttarakhand - 247661 (IN) PRABAHARAN, G Haridwar Uttarakhand - 247661 (IN) KUMAR, Bhuvnesh Haridwar Uttarakhand - 247661 (IN) KUMAR, Nitin Haridwar Uttarakhand - 247661 (IN) KULKARNI, Amit Haridwar Uttarakhand - 247661 (IN) GUPTA, Nitin Haridwar Uttarakhand - 247661 (IN) (74) Representative: Ström & Gulliksson AB  P.O. Box 793 220 07 Lund 220 07 Lund (SE)