含铬固体废渣中Cr^(3+) 的氧化

Oxidation of Cr 3+ in Slag Containing Chronium

研究了ｐＨ、温度对铬渣中Ｃｒ３＋的氧化速率的影响．结果表明，在碱性条件下，空气中的氧气具有相当强的氧化性，足以将Ｃｒ３＋氧化为Ｃｒ６＋，且随ｐＨ、温度的升高而加快．

The influence of pH and temperature on oxidation speed of Cr 3+ was studied in the paper.The result showed that the oxygen in atmosphere presented quite strong oxidative ability under alkali conditions.It can oxide Cr 3+ into Cr 6+ easily,and the oxidation speed increased with the rise of pH and temperature.