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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％。
The pre-oxidation treatment of gold ore containing pyrrhotite and white iron ore partially avoids the harmful influence of easily oxidized impurities on the cyanidation process and improves the cyanide leaching rate of gold and silver. Under suitable process conditions, the leaching rates of gold and silver reach 98% and 92% respectively.