Green hydrometallurgical recycling of Zn and Mn from spent alkaline batteries as inorganic pigments for flexographic ink

Key Points

• Greener hydrometallurgical methods effectively recover zinc and manganese as useful inorganic pigments.
• Recovery rates of both metals exceed 85%, demonstrating high efficiency from spent alkaline batteries.
• Analysis focused on the extraction process, showcasing methods to utilize battery waste in ink production.
• This approach highlights potential environmental benefits, paving the way for sustainable recycling practices.