黔西南某高砷金矿中金的氰化实验研究

摘要

黔西南某高砷金矿中金的品位为3 g/t～ 30 g/t,砷的质量分数在8%～18%范围变化.金呈细粒和微细粒的形式存在,部分金为硫化物,脉石矿物包裹.金的氰化浸出率为50%～60%.砷金矿与催化溶液参与化学反应后,在选择条件下,金的氰化反应浸出率为82%～91%.使得金矿有较好的经济效益和社会效益.%The content of gold of a certain gold ore containing high content of arsenic is 3 g/t ~ 30 g/t, and the gold ore contains 8% ~ 18% arsenic in Qianxinan. The most gold is exists as fine particales and micro - fine particales, the other is wrapped in sulphide and gangue minerals. The gold cyanide leaching rate was 50% ~60%. If adding auxiliary ageng in gold ore containing high content of arsenic, the gold cyanide leaching rate is 82% -91%. It makes the gold ore have great economic benefits and social benefits.