Abstract: The contrast of single magnetic separation, single gravity separation, magnetic-gravity separation was conducted with a low-grade chromite, in Sudan, based on the research process of mineralogy. Its rationable to choose spiral chute for discarding-shaking table for concentration, the concentrate of Cr₂O₃ grade is 52.20%, recovery is 87.80% was chieved, forevermore this process needs less area and has low production costs, is a feasibility technical solution for dealing with this type of ores.

Key words: Chromite, Single magnetic separation process, Single gravity separation process, Magnetic-gravity separation process