已知,在硫化矿物浮选时,其浮选用水可用海水,浮选药剂的用量可减少,有时选别结果也较好。近年来在浮选中从低品位铁矿中选出高品位铁精矿已成必要。用胺盐做捕收剂、用淀粉做铁矿物的抑制剂选石英、硅酸盐矿物等脉石的间接浮选法,也有用水玻璃抑制硅酸盐矿物、用塔尔油和燃料油混合浮选铁矿物的直接浮选法。考虑必须用海水浮选时,先进行 It is known that in the flotation of sulphide minerals, the amount of flotation reagent used in the flotation can be reduced by seawater, and the flotation results are sometimes better. In recent years, it has become necessary to select high-grade iron concentrates from low-grade iron ore in flotation. Amines used as collector, with iron as an inhibitor of iron ore quartz, silicate minerals such as indirect flotation method, but also useful silicate inhibition of silicate minerals, mixed with tar oil and fuel oil Flotation method for direct flotation of iron minerals. Consider the need to use seawater flotation, the first