Scale-up and demonstration of Recyclamet, a novel system for the closed loop recovery of metal and value added residues from waste aluminium slag and drosses

“到2025年，全球铝消费量将达到1.2亿吨，铝生产和回收是一个庞大而重要的全球产业。渣和渣滓是铝冶炼工业产生的有害残余废物；从历史上看，在金属回收处理后，残留物被填埋，但填埋不再被欧盟废物法规允许。虽然一些金属可以在专门的加工厂回收，但它非常昂贵，而且能量负担很大，需要在欧洲各地运输危险和有毒的废物，这使得回收不经济，但却是必要的。闭环加工是铝冶炼的关键驱动因素和行业战略目标，可实现最大限度的金属回收，节省成本，提高效率，更好地控制材料，最大限度地减少危险输出和减少碳足迹。该项目将扩大规模并展示由Ultromex有限公司开发并获得专利的新系统，该系统通过对渣滓进行闭环升级，从大量减少的矿渣废物中回收金属和盐，并将残余固体转化为产品级材料（水泥集料和柏油路沥青），从根本上提高从铝渣滓（铝回收的主要组成部分）中生产铝的资源效率。这是一项领先的技术，许多大型铝冶炼厂（包括项目合作伙伴Tandom Metallurgical Group）都对此表示了兴趣和需求。回收系统为该行业的废物处理挑战提供了解决方案，并从根本上提高了整个金属生产过程的经济性。该技术旨在具有相对较低的CAPEX/OPEX要求和适度的物理足迹，这将允许与冶炼厂一起在现场建造工厂。这将允许快速回收和回收90%的可用金属（已知合金）和炉盐，消除在欧盟范围内运输有害物质的需要，最大限度地减少垃圾填埋，降低运输，储存和加工成本，并为其他增值应用生产安全的固体材料（非金属颗粒- NMP）。”

"With global aluminium consumption set to reach 120M tonnes by 2025, aluminium production and recycling are large and important global industries. Slag and drosses are hazardous residual wastes from the aluminium smelting industry; historically, after treatment for metal recovery, the residue was landfilled but landfill is no longer permitted by EU waste regulations. While some metal can be recovered at specialist processing plants, it is extremely expensive with very high-energy burden and requires hazardous and toxic waste to be transported across Europe, making recovery uneconomic, but necessary. Closed-loop processing is a key driver and an industry-strategic objective of aluminium smelting, enabling maximum metal recovery, cost savings, efficiency gains, greater materials control, minimisation of hazardous outputs and a reduced carbon footprint.This project will scale up and demonstrate a novel system developed and patented by Ultromex Limited to radically improve the resource efficiency of aluminium production from aluminium dross (a major constituent of aluminium recycling) by the closed loop upgrading of dross, recovery of metal and salts from the greatly reduced volumes of slag waste and conversion of residual solids into product-grade material (cement aggregates and asphalt in tarmac). This is a front-running technology with confirmed interest and demand from many of the large aluminium smelters including project partner Tandom Metallurgical Group.The Recyclamet system offers a solution to the industry's waste disposal challenge and a radical economic enhancement of the overall metal production process. The technology is aimed to have a relatively low CAPEX/OPEX requirement and moderate physical footprint which will allow for plants to be built in situ with the smelters. This will allow for speedy recycling and recovery of \>90% of available metal (of known alloy) and furnace salts, removing the need for transporting hazardous material across the EU, minimising landfill and reducing transport, storage and processing costs, and producing safe solid materials (non-metallic particles - NMP) for other value added applications."