加强预氧化提高金银氰化浸出率的试验研究

Experimental Research on IncreasingCyanide Leaching Rates of Au and Agby Strengthening Pre onidation

对含有磁黄铁矿和白铁矿的金矿石加强预氧化处理，部分避免了易氧化杂质对氰化过程的有害影响，提高了金银的氰化浸出率。在适宜的工艺条件下，金银浸出率分别达到９８％和９２％。

To strengthen pre oxidation was employed in treating a gold ore contained pyrrhotite and marcasite to avoid harmful influnce of oxidable impurity on cyanide leaching process,and increased leaching rates of Au and Ag.Under the appropriate condition,the leaching rates of Au and Ag can reach 98% and 92%.