采用低温焙烧—氰化法处理含煤氧化金矿石

某矿床含金角砾岩顶部覆盖一层炭质粘土岩(风化煤层),由于长年氧化风蚀作用,使其煤层疏松剥落混入矿体,致使矿石中含碳组份增高,构成难处理类型的金矿石。采用低温氧化焙烧——氰化法提金工艺,不仅能获得较高的技术指标,还可消除炭质粘土岩混入矿体对金氰化浸出的有害影响。

To treat coal-bearing oxidized gold ore by roast in low temperature-cyanide process

In a gold mine, the top of the gold-bearing breccia was covered by a sheet of carbonaceous clay rock(weathered coal layer). Due to oxidization and wind erosion all the year round, the coal layer was loose and stripped to join the orebody causing carbonaceous component increasing and creating the gold ore refractory. By using roast in low temperature -cyanide process, not only the higher economic index was attained, but also the harmful effect on cyanide leachimg of the gold ore intruded by carbonaceous clay rock was eliminated.