利用疏水絮凝浮选工艺回收黄铁矿烧渣中微细粒金  

EXTRACTING FINE GOLD FROM PYRITE SLAG BY HYDROPHOBIC FLOCCULATION FLOTATION

作　　者：崔吉让[1] 宋少先[1] 李睿华[1] 卢寿慈[1] 

机构地区：[1]北京科技大学

出　　处：《矿冶》1997年第1期34-37,33,共5页Mining And Metallurgy

摘　　要：本文介绍了疏水絮凝浮选法回收黄铁矿烧渣中微细粒金工艺研究。通过药剂遴选试验，影响因素试验确定合理试验流程及药剂制度。试验结果表明，疏水絮凝浮选优于常规浮选，非极性油的添加可强化疏水絮凝过程，显著提高金的品位和回收率，一定强度和时间的机械搅拌是产生疏水絮凝的必要条件，过磨对疏水絮凝浮选工艺没有明显的不利影响。利用疏水絮凝浮选工艺从含金２．９４ｇ／ｔ的黄铁矿烧渣中，获得含金１２６．３ｇ／ｔ、回收率５１．３５％的金精矿。In order to extract fine gold from pyrite slag, the hydrophobic flocculation flotation was studied and compared with conventional flotation. The main parameters of affecting beneficiation such as flotation reagent, the duration of agitation and the addition of non-polar oil were investigated. It demonstrated that the hydrophobic flocculation flotation was better than the conventional flotation. The non-polar oil and the intensive agitation are key to improve the gold grade and recovery. The hydrophobic flocculation flotation was used to treat the pyrite slag, assaying gold 2.94g/t and all of which are minus 0.010mm, a gold concentrate assaying Au 126.3g/t with 51.35% recovery was obtained. A new way of extracting fine gold from pyrite slag was open by using up the flotation of hydrophobic flocculation.

关 键 词：疏水絮凝 浮选 金 回收 黄铁矿 烧渣 

分 类 号：TD926.4[矿业工程—选矿] X750.5[环境科学与工程—环境工程]