Real-Time Chemical Composition Analysis in Aluminum Production

This technical report discusses the implementation of real-time chemical composition analysis using liquid-phase laser-induced breakdown spectroscopy (LP-LIBS) at a secondary aluminum producer's remelt area. The report outlines the process improvements achieved through DTE's analyzers, which automate the analysis of molten aluminum, replacing manual sampling methods. The system integrates connected analyzers with the IRIS cloud platform, enabling rapid analysis and significant reductions in operator sampling time. The findings from a case study indicate potential profitability increases ranging from $43 to $260 per ton of aluminum, alongside improvements in safety and energy efficiency. The report details the precision and accuracy of DTE's analyzers, including their ability to measure dissolved elements with low detection limits and customizable configurations. Additionally, it highlights the stableLIBS technology developed to accurately quantify magnesium concentration in liquid aluminum, addressing challenges posed by external factors. The report concludes with a discussion on the advantages of DTE's analyzers in terms of standardization and reliability.