The HEPHAESTUS project is built around a key and general objective:
Develop a set of scalable and tunable unit operations, to be built as an integrated treatment plant, characterized by the ability to treat multiple process wastes deriving from primary mineral and metallurgical flows (primary and secondary). The operations of the unit are: Cleantech electric furnace, to transform EAFD and AOD powders into metal alloys to be remelted immediately, a process supported by flows of fine by-products of primary mineral extractions (construction, aggregates and dimensional stone); EZINEX process, to extract the zinc present in oven powders; Drawing of fibers, for the production of mineral wool starting from the process slag in the molten state; Catalytic conversion of CO2 gas into methanol or formic acid; Hydrometallurgical processes based on ammonia-ammonium carbonate (AAC) and methanesulfonic acid (MSA), to produce a recyclable Fe-rich residue and to recover metals (eg ZnO) from EAF Dusts.

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