隔膜电解法净化再生镀锌钝化液的研究

Purification and Regeneration of Aged Cr-6 Solution by Electrolysis Method

采用隔膜电解法净化再生国营１５９厂的镀锌钝化液，结果表明，此法具有设备简单、技术可行、经济合理、不需要化学药品、没有二次污染等优点。其最佳工艺条件是：电流密度６Ａ／ｄｍ２，槽电压４５Ｖ，温度４０℃，电解时间为８小时。通过此方法可以使废钝化液净化再生直接回用于钝化槽。

The Aged Cr-6 Solution of No 159 Factory is purified and regenerated by the electrolysis method As a result of membrane electrolysis,it has many advantages,such as uncomplicated equipment,feasible technique,reasonable cost and no chemical reagents or repollution The optimum technological data are as follows:the current density is 6A/dm and the voltage of electrolysis tank is 4 5V at 40℃ for 8 hours So that the waste solution can be reused and electroplate products will be satisfactory