Fusion: Practice and Applications FPA 2692-4048 2770-0070 10.54216/FPA https://www.americaspg.com/journals/show/1123 2018 2018 Faculty of computers and Informatics, Zagazig University, Zagazig, 44519, Egypt Mahmoud Ismail PROMETHEE II decision-making methodologies are integrated into a novel framework in this research. A real-world case study of lithium extraction techniques served as the basis for this investigation. Lithium extraction from brines and saltwater has become more difficult due to the limited natural resources of lithium and the worldwide desire to replace fossil fuels with clean and recyclable energy. Using a multicriteria decision-making approach, the suggested framework aids in selecting the best lithium extraction procedure from brines and saltwater. A case study of lithium extraction from brines and saltwater has been used. The findings of the study show that the suggested strategy is logical and enforceable. 2021 2021 32 40 10.54216/FPA.040104 https://www.americaspg.com/articleinfo/3/show/1123