Abstract:The iron grade of a related sulphur-cobalt magnetite in Hebei is 40.72%, and the iron-bearing mineral is mainly magnetite and Cobalt pyrite. In order to provide technical support for the development and utilization of the ore, the following four options of ore dressing process research, scheme I (original ore ball grinding - weak magnetic separation), scheme II (original ore conventional crushing - preselected tailing - ball grinding - Weak magnetic separation), scheme III (original high pressure roller mill-preselected tailing-ball milling-weak magnetic separation) and scheme IV (original ore pre-selection tailing-self-grinding grinding-ball milling-weak magnetic separation) are adoted. The results show that the above four schemes can obtain qualified iron concentrates with more than 66% Fe grade and 87% iron recovery. The results of the flotation recovery of sulfur and cobalt in the scheme IV grinding tailings show that the qualified cobalt-containing sulfur concentrates with 42.74% sulfur grade and 0.31% cobalt grade can be obtained by one-time rough selection and three times of flotation.