Structural evolution of pyrrhotite polytypes and its role in self-heating of sulphide-rich concentrates under thermal stress (2025)
Abstract
This research investigates the structural evolution of pyrrhotite polytypes in sulphide-rich concentrates under thermal stress and their role in triggering self-heating behaviour. Using in-situ synchrotron powder diffraction, the study will monitor phase transformations of pyrrhotite at elevated temperatures and identify the specific structures responsible for heat generation. By linking these structural changes to self-heating responses, the project will provide critical insights for developing temperature control and concentrate management strategies to mitigate self-heating in sulphide-rich materials, supporting safer and more efficient high-temperature processing and storage practices.
