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Smart Clean Aluminium Material Processing - Digital Sorting, Intelligent Pre-treatment, and Advanced Melt Refining

Project description

Advanced materials science for aluminium recycling optimisation

Aluminium recycling is vital for sustainable metallurgy, but current methods face issues related to hazardous fluxing agents, chemical cleaning, and emissions of particulates, VOCs, dioxins, and salt slag waste. The EU-funded CLEANMAT project is optimising aluminium recycling by integrating digitalisation and advanced materials science. It connects scrap sorting, pre-treatment, melt refining, and alloy qualification for improved efficiency. The resulting technologies aim to ensure feedstock purity and reduce flux usage by up to 97 % while maintaining alloy quality. Evaluations will assess environmental and economic benefits, with validation provided by industry partners. This project seeks to establish a sustainable pathway for producing high-performance alloys from challenging scrap, strengthening Europe’s leadership in low-emission aluminium recycling.

Objective

Aluminium recycling is a cornerstone of sustainable metallurgy, yet current processes remain constrained by hazardous fluxing agents, chemical cleaning, and high emissions of particulates, VOCs, dioxins, and salt slag waste. The CLEANMAT project develops an end-to-end optimisation pathway to address these challenges, integrating digitalisation, advanced materials science, and sustainable process engineering. A Digital Thread interlinks scrap sorting, pre-treatment, melt refining, and downstream alloy qualification, enabling AI-driven optimisation and traceability across the full value chain. Multi-sensor characterisation technologies will identify residual contaminants that evade conventional sorting, ensuring feedstock purity. Closed-loop heat pre-treatment and cleaning will safely eliminate organic coatings and residues. At the refining stage, two complementary approaches will be advanced: near-zero flux processing for induction furnaces, and ultra-low flux retrofits for rotary, reverberatory, and crucible furnaces, employing MHD flow, vacuum distillation, LiME, and HSMC conditioning. These processes will reduce flux use by up to 97%, while maintaining alloy quality and yield. Rigorous LCA, techno-economic, and occupational safety assessments will benchmark environmental and economic benefits. Industrial validation with automotive and recycling partners will demonstrate scalability and compliance with EN standards. CLEANMAT will deliver a replicable pathway to high-performance alloys from challenging scrap streams, establishing Europe’s global leadership in safe, low-emission, and circular aluminium recycling

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-RIA - HORIZON Research and Innovation Actions

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Call for proposal

(opens in new window) HORIZON-CL4-2025-01

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Coordinator

BRUNEL UNIVERSITY LONDON
Net EU contribution
€ 1 067 646,50
Address
KINGSTON LANE
UB8 3PH UXBRIDGE
United Kingdom
Region
London Outer London — West and North West Harrow and Hillingdon
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data

Participants (16)