Abstract:Under the background of "double carbon",a scheelite mine in Jiangxi Province has carried out beneficiation experimental study focusing on energy saving and emission reduction as well as saving land (forest) resources. By using XRT separation of coarse waste rock and spiral chute + shaker classification heavy separation of tailings,coarse waste rock and tailings can be achieved early discarding. The total yield of waste rock and tailings is 87.67%,and the grade of WO₃ is reduced to 0.04%. Coarse early discarding can reduce the energy consumption of mineral processing by about 30%,and the effect of coarse early discarding is remarkable. The flotation process was adopted for shaker concentrate and fine mud,and the beneficiation indexes (the whole ore) were obtained as follows: tungsten concentrate 1: yield 0.31%,WO₃ grade 75.20%,WO₃ recovery 56.32%. Tungsten concentrate 2: yield 0.18%,WO₃ grade 46.10%,WO₃ recovery 20.05%. The total recovery of WO₃ is 76.37%,and the beneficiation effect is good. The comprehensive utilization analysis of early discarded waste rock and tailings shows that the coarse waste rock meets the Crushed Stone for Construction and the tailings meets the extra fine sand of manufactured sand. It is estimated that the comprehensive utilization of waste rock and tailings can save about 16 hectares of land (forest) and 1684.64 tC of land carbon sink,and the "double carbon" effect is obvious.