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# 2025 Enviromentally Friendly Leaching Solution |
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This sustainable leaching approach enables safer extraction of rare earth elements (REEs) from ion-adsorption clays. Using biodegradable organic acids instead of harsh chemicals, it selectively dissolves REEs under mild conditions while reducing toxic by-products. The process delivers more than 25% higher efficiency than conventional methods and supports urban mining and greener recovery from diverse feedstocks. Scalable and adaptable, it provides a cleaner pathway for REE producers and recyclers, helping to power the green and digital transition
Insyirah Zulkifli is a research scientist and first-semester PhD candidate at Universiti Teknologi PETRONAS (UTP), specializing in sustainable rare earth extraction and green hydrometallurgy. She is pioneering the Environmentally-friendly Leaching Solution (ELS), a biodegradable alternative to conventional ammonium leaching for ion-adsorption clays. Her work has been published in [Journal of Rare Earths, 2024], [Journal of Industrial and Engineeing Chemistry, 2025] and recognized through an intellectual property (IP) patent filing [application no: PI2023007953] for innovation in clean technology. Her goal is to reduce environmental pollution, secure critical materials, and drive a circular economy for renewable energy and advanced industries.more
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