Abstract:
The Bijigou vanadium-titanium magnetite deposit in Yangxian country, Shaanxi province is a polymetallic deposit, among which the associated scandium grade reaches 59.65×10
-6, which can be used for comprehensive recovery and utilization. The occurrence state of scandium element was researched by microscope, chemical analysis, electron probe micro-analyzer(EPMA), mineral liberation analyser(MLA) and EDS maps image, etc. The research provided important basis of science evaluation and comprehensive utilization of scandium. The results showed that there was no independent scandium mineral in the ore. The scandium occured in augite, hornblende, actinolite, actinolite-uralite, hypersthene, magnetite and ilmenite in the form of isomorphism. The distribution rate of scandium accounted for 84.36% in non-metallic minerals such as augite and hornblende, while 15.64% in magnetite and ilmenite. The research achievements reveal that augite and hornblende separation technology is the key to extract scandium from vanadium-titanium magnetite.