萤石浮选的新药剂和新工艺

NEW FLOWSHEET AND NEW REAGENTS FOR FLOURITE FLOTATION

以两性捕收剂６ＲＯ１２为捕收剂、具有Ｒ—ＰＯ３结构的药剂ＴＸＤ为抑制剂，采用具有特色的浮选工艺流程，浮选萤石纯矿物和天然萤石矿石。结果表明，对于含ＣａＦ２３０２５％，ＣａＣＯ３２１２％，ＳｉＯ２３６２０％，Ｆｅ２Ｏ３１０１８％的原矿，可获得含ＣａＦ２９７３５％，ＳｉＯ２１５８％，ＣａＣＯ３０４３％的萤石精矿ＣａＦ２回收率为６８６０％。

6RO12 is an amphoteric collector and TXD is a reagent with RPO3 structure. Flotation separation of pure fluorite mineral and natural flourite mineral is conducted by a special flotation flowsheet using 6RO12 as collector and TXD as depressant. The results show that fluorite concentrate containing 9735% CaF2, 158% SiO2 and 043% CaCO3 can be obtained using feed containing 3025% CaF2, 212% CaCO3, 362% SiO2 1018% Fe2O3, with a CaF2 recovery of 6860%.