An environmentally friendly method for efficient atmospheric oxidation of pyrrhotite in arsenopyrite/pyrite calcine

• Published in: Chemical engineering journal advances Vol. 7; p. 100122
• Main Authors: Li, Lin, Wang, Jingxiu, Wu, Chengqian, Ghahreman, Ahmad
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.08.2021; Elsevier
• Subjects: Calcine; Oxidation; Pyrolysis; Pyrrhotite; Sulfur balance; Thermal phase transformation; Pyrolysis; Oxidation; Thermal phase transformation; Calcine; Pyrrhotite; Sulfur balance

•The atmospheric oxidation of an iron sulfide calcine was studied for the first time.•The sulfide oxidation rate was determined by the iron sulfide thermal phase transition.•More than 95% of the calcine can be oxidized at optimal conditions without ultrafine grinding.•Elemental sulfur was the major...