Article

A study explored coal-based hydrogen-carbon coupling technology to reduce iron in iron-rich nickel slag, revealing that the reaction order decreased and the reaction rate constant increased with higher temperatures. Specifically, as the reduction temperature rose from 1200°C to 1300°C, the reaction order fell from 1.63 to 1.33, while the reaction rate constant increased from 0.031 to 0.165. The apparent activation energy for the reduction process was measured at 40.35 kJ/mol.