【摘要】 微波辐照下活性炭能够迅速升温，并对不吸波的粉末三氧化二铁进行还原，可制取粉末铁粉或氧化亚铁粉末。活性炭微粒大小及用量对还原反应有较大的影响，微粒越细，反应时间越短，所需活性碳量也少。并存在发生还原反应所需活性炭量的临界极小值。更多还原

【Abstract】 Activated carbon can be heated to hight temperature, and was used to reduce ferric oxidepowder to make iron powder or ferrous powder. The size of carbon granule and the amount of activatedcarbon have great effect on reducing, The smaller the size is, the shorter the reducing time is, and thesmaller the amount of activated carbon needed in reducing is. But there is a minium amount of activatedcarbon.更多还原