Abstract: The tailings of a gold mine contain 0.68 g/t gold and 4.50 g/t silver,which has high comprehensive recovery value.In order to recover useful elements,the process mineralogy and beneficiation process of a gold mine tailings were studied.The results of mineral phase analysis show that gold exists in the form of native gold and wrapped gold,of which natural gold accounts for 56.50%.The results show that under the condition of 80% of -0.074 mm,the gold concentrate with 27.68 g/t gold grade,107.311 g/t silver grade,72.18% gold recovery rate and 42.77% silver recovery rate can be obtained by using one roughing,three cleaning and one scavenging flotation process.

Key words: gold ore, gravity separation, flotation, comprehensive recovery