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All Journal Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya
Muhandis Akbar Winaji
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering

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ANALYSIS OF MnO2 RECOVERY STUDY FROM DRYCELL BATTERY WASTE: A REVIEW Erwan Adi Saputro; Muhandis Akbar Winaji; Muchammad Fahrizal Hanif; Ardika Nurmawati; Ely Kurniati; Caecilia Pujiastuti
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 8 No. 1 (2026): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v8i1.6498

Abstract

Global demand for manganese dioxide (MnO₂) materials is increasing rapidly as the battery and catalyst industry develops, while the availability of primary ores continues to decline. Waste dry cell batteries contain high amounts of MnO₂, making them potentially a secondary source of economically valuable manganese metals. This study systematically discusses various microwave-assisted hydrometallurgy-based hydrometallurgy approaches for the recovery of MnO₂ from waste batteries. The literature study was conducted by examining 50 current scientific references covering three main aspects: extraction methods, the influence of heating methods, and purification strategies. The core conclusion of this review is that microwave-assisted leaching represents the most efficient extraction approach, delivering recovery rates up to 95.1% that significantly surpassing conventional methods (82–85%) while reducing reaction times and energy consumption by up to 40%. Furthermore, this study concludes that chemical oxidation using KMnO4​ is the superior purification strategy, capable of producing MnO2​ with purity exceeding 98%. Consequently, this review establishes that the integrated system of microwave-assisted leaching and selective KMnO4​ oxidation offers the most robust, economical, and environmentally friendly blueprint for implementing a circular economy in the metals industry
Co-Authors Ardika Nurmawati Caecilia Pujiastuti Ely Kurniati Erwan Adi Saputro Muchammad Fahrizal Hanif