Abstract
ABSTRACT The effect of thermal oxidization pretreatment (TOP) on the magnetization roasting and separation of refractory iron ore was investigated. The TOP of raw samples was performed in a muffle furnace at 750°C for 30 min. The magnetization roasting and separation experiments of the raw samples and TOP samples were performed, which revealed that TOP could decrease the optimal CO concentration required during the magnetization roasting process by 10% and increase the iron recovery by about 10%. Analysis results of X-ray diffraction (XRD), scanning electron microscope (SEM) and vibrating sample magnetometer (VSM) showed that there were many pores and cracks in the TOP samples, which were advantageous to the subsequent magnetization roasting, and promoted the sufficient conversion of specularite and siderite to magnetite, increasing the iron recovery significantly.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Mineral Processing and Extractive Metallurgy Review
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
