钢铁酸洗废液的回收利用研究

The study of recovery utilization of steel-pickling liquid waste

采用直接通空气法与直接通氯气法 ,将Fe2 + 氧化为Fe3 + 。探讨了最佳转化条件 ,认定以pH值 5 5、温度 80℃、常压下通空气 2 2h直接氧化为可行 ,并试制出产品铁红粉 ,回收率为 77%。

Fe 2+ is oxidized Fe 3+ by means of ventilating air and chlorine directly.This paper probes into the best transformation condition,pH 5.5,80℃,holding that it is available to ventilate 22h of air to oxidize directly for the trialproduction of iron oxide red powder.The recovery-rate is 77%.