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，铝生产和回收是全球重要的大型产业。炉渣和浮渣是炼铝工业产生的危险残余废物;历史上，在进行金属回收处理后，残余物被填埋，但欧盟废物法规不再允许填埋。虽然有些金属可以在专业加工厂回收，但成本极高，能源负担非常高，而且需要将危险和有毒废物运往欧洲各地，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力和行业战略目标，可实现最大限度的金属回收、成本节约、效率提高、更好的材料控制，该项目将扩大并展示由Ultromex有限公司开发并获得专利的新型系统，以从根本上提高从铝浮渣生产铝的资源效率。通过对浮渣进行闭环升级、从数量大大减少的矿渣废物中回收金属和盐以及将残余固体转化为产品级材料（水泥骨料和柏油碎石中的沥青），铝回收（铝回收的一个主要组成部分）正在得到进一步利用。这是一项领先的技术，包括项目合作伙伴Tandom Metallurgical Group在内的许多大型铝冶炼厂都对该技术感兴趣并有需求。该系统为行业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效益。该技术旨在具有相对较低的CAPEX/OPEX要求和适度的物理占地面积，这将允许与冶炼厂一起就地建造工厂。这将允许快速回收和回收90%以上的可用金属（已知合金）和熔盐，消除在欧盟范围内运输危险材料的需要，最大限度地减少垃圾填埋并降低运输，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."