Composite beneficiation inhibitor used for copper-arsenic separating flotation

The invention discloses a composite beneficiation inhibitor used for copper-arsenic separating flotation. A hydrophilic oxide film can be formed on the surface of a mineral containing arsenic and copper to selectively separate a mineral which does not contain the arsenic and the copper from the mineral containing the arsenic and the copper. The composite beneficiation inhibitor is composed of, by weight, 75-95 parts of calcium hypochlorite, 8-25 parts of sodium humate and 8-17 parts of sodium hexametaphosphate. The composite beneficiation inhibitor is prepared sequentially through the steps of mixing, grinding and remixing. 本发明公开了种用于铜砷分离浮选的复合选矿抑制剂，可在含砷铜矿物的表面形成亲水性氧化膜以实现不含砷铜矿物与含砷铜矿物的选择性分离，其由如下重量份的原料组分依次经混匀、研磨和再混匀制成：次氯酸钙75～95重量份、腐植酸钠8～25重量份和六偏磷酸钠8～17重量份。