Test of Gravity Separation Tailings Re-recovery of a Vanadium-titanium Magnetite in Westem Panzhihua
In order to recycle the titanium resources in the total tailings of an ultra-low grade vanadi-um-titanium magnetite in Westem Panzhihua,based on the study of tailings properties,the re-recovery test of gravity tailings was carried out.The test results show that the flotation sample with total iron grade of 19.07％ and TiO2 grade of 18.25％ can be obtained by high intensity magnetic separation-classification-low intensity magnetic separation process.The qualified titanium concentrate with TiO2 grade of 47.27％ and TiO2 recovery of 70.78％ can be obtained by open-circuit flotation with desulfurization-1 roughing and 3 cleaning of the ore samples entering flotation.The coarse-grained minerals after classification are subjected to gravity separation process,under the condition that the interception ratio of the concentrate and tailings of the shaking table surface is 2:8,the titanium raw material with the concentrate yield of 6.46％,the total iron grade of 13.41％ and the TiO2 grade of 8.83％ can be obtained.It can be incorporated into the main sys-tem to separate and recycle the titanium metal again,so as to obtain higher comprehensive utilization rate of titanium resources.
vanadium-titanium magnetite tailingshigh intensity magnetic separationfine particle flotationfine titanium concentrate
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