分离前的钢-镍混合产品其旷物成分主要是黄铜矿、镍黄铁矿、磁黄铁矿,以及少量的针硫镍矿、方黄铜矿和其他矿物。由于选矿厂中这类产品的物质组成较为复杂,为了达到选择性分离的目的,采用了精矿四次清洗脱药和两次再磨的多段选别流程。用石灰抑制含镍矿物,所加的石灰量应使矿浆中游离CaO的浓度保持在650～1000克/米~3。铜精矿中铜和镍的品位与其中所含的黄铜矿和方黄铜矿比例有关,含铜为25～30％,含镍为2％。从浮铜的尾矿中可得到四种镍精矿,其中含Ni～5％,含铜3.5％。工业条件下浮选的特点是泡沫产品产率很 The pre-separation steel-nickel hybrids are mainly composed of chalcopyrite, pentlandite, pyrrhotite, as well as small amounts of acithinite, chalcopyrite and other minerals. Due to the complexity of the material composition of these products in the concentrator, a multistage sorting process with four cleaning and two resharpening steps was adopted in order to achieve selective separation. Lime suppression of nickel-bearing minerals, the amount of lime added so that the concentration of free CaO pulp maintained at 650 ~ 1000 g / m ~ 3. The grade of copper and nickel in copper concentrates is related to the proportion of chalcopyrite and chalcopyrite contained therein, containing 25-30% copper and 2% nickel. Four nickel concentrates are available from the float copper tailings, including Ni ~ 5% and copper 3.5%. Floating under industrial conditions is characterized by foam product yield is very high