Antimony Ore Beneficiation Tests In Saudi Arabia. Jan 24 2012 Beneficiation test of the graphite ore. graphite beneficiation plant. A series of crushing milling and benchscale flotation tests was performed on a 300 kg sample of graphite ore merih 1991. The head sample had a grade of 17. If you are interested in our products or want to visit the nearby production site, you can click the .