Abstract: In order to meet the needs of economic construction for graphite，protect the graphite resource of our country and the ecological environment in mining area，increase the social wealthy，flotation process was used to recycle graphite based on detailed property analysis of graphite tailings from Heilongjiang.The results showed that：①The particle size of graphite tailings was 89.48% passing 0.074 mm，contents of fixed carbon was 4.98%，degree of graphite liberation was 75.59%.Graphite from the samples exists in form of amorphism in mainly flaky or parallel aggregation，or monomer grain with strong heterogeneity.Graphite is mainly interlocked with mica and quartz.②Graphite concentrate with 85.65% fixed carbon，66.22% recovery was received through the process of one roughing，one cleaning-four stages grinding and five stages concentration-directly return of high grade middling + cleaning return after one scavenging concentrate of low grade middling to the process.The content of fixed carbon can reach the provision of GB3519-83 for fireproof.

Key words: Graphite tailings, Fixed carbon, Flotation, Ore grinding