抄録
The placer chromite in Hokkaido as the valuable resource of ferro-chromium and its dressing were studied. The small grains of chromite from the present deposit contain high percentage of Cr2O3 (63% Cr2O3 in the better grade) and little impurities. An example of the total analysis is as follows: Cr2O3 54.391; FeO 24.28; Al2O3 4.14; CaO 7.21; MgO 5.37; P trace; S 2.116; SiO2 0.35% .Dressing test by means of jigs revealed excellent results.
