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发明公开
CN101823024A 一种自然铋矿物的选矿方法 失效 - 权利终止 转让

一种自然铋矿物的选矿方法
摘要：
一种自然铋矿物的选矿方法。其特征是将原矿磨矿到-0.074毫米占75～85％；经调浆后，加入矿浆调整剂，抑制剂，捕收剂，起泡剂，进行粗选、扫选和精选，获得混合粗精矿和混合粗精矿尾矿；混合粗精矿经脱药后磨矿至-0.043毫米占90～95％，调浆，加入调整剂、抑制剂、捕收剂进行粗选和扫选，获得铋粗精矿和铋粗精矿尾矿；铋粗精矿经调节矿浆pH值为10～11.5后，添加活化剂、捕收剂以及起泡剂进行粗选、扫选和精选，获得铋精矿和铋精矿尾矿。本发明的选矿方法获得的铋精矿铋品位为16～25％，铋回收率50～55％。本发明适用于以自然铋形式存在的铋矿物的选矿。
摘要（英）：

The invention relates to a natural bismuth mineral beneficiation method, which is characterized by grinding 75-85% of raw ore to be 0.074 mm, adding ore pulp modifier, inhibitor, collector and foaming agent after pulp conditioning to carry out roughing, scavenging and cleaning so as to obtain mixed crude concentrates and mixed crude concentrate tailings, grinding 90-95% of mixed crude concentrates after reagent removal to be 0.043 mm, conditioning the pulp, adding the modifier, the inhibitor and the collector to carry out roughing and scavenging so as to obtain bismuth crude concentrates and bismuth crude concentrate tailings, and adding activating agent, the collector and the foaming agent to carry out roughing, scavenging and cleaning after the pH value of the pulp of the bismuth crude concentrates is conditioned to be 10-11.5 so as to obtain bismuth concentrates and bismuth concentrate tailings. The bismuth grade of the bismuth concentrates obtained by the beneficiation method is 16-25%, and the recovery rate of the bismuth is 50-55%. The invention is suitable for the beneficiation of bismuth minerals existing in a natural bismuth form.

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