HSC Chemistry

HSC Chemistry stands for H (enthalpy), S (entropy), and Cp (heat capacity). The software combines versatile chemical, thermodynamic, and mineral-processing features in a single package with 24 calculation modules connected to 12 integrated databases. Key modules include equilibrium calculations, heat and mass balance, Eh-pH diagrams, phase stability diagrams, and mineral processing simulation.

The HSC Sim process simulation module expands capabilities to model entire processes. Each process unit is represented as an Excel file, and HSC Add-In functions convert these into small thermodynamic engines. HSC Sim supports three modeling approaches: Particle (minerals processing), Reaction (hydrometallurgy and pyrometallurgy), and Distribution — with built-in Sankey diagrams and optimisation tools including Monte Carlo, PSO, and Simplex methods. The Dynamic Simulation module enables time-dependent calculations for batch processes and process fluctuations.

HSC Sim is the main simulation tool for mineralogical and hydrometallurgical mass balance work within Metso, extensively tested with real-world flowsheets. It is widely used by metallurgists, research institutions, and engineering consultancies for flowsheet development, process design, and thermodynamic analysis across gold, copper, nickel, and base metal processing.