含铜硝酸退镀液中铜的回收和硝酸的再生

发布时间：2018-07-03 10:36

  本文选题：草酸 + 硝酸铜　； 参考：《电镀与环保》2017年02期

【摘要】：用草酸铜沉淀法回收含铜硝酸退镀液中的铜并再生硝酸。研究了草酸加入系数(n_(草酸)∶n_(铜))、反应时间及反应温度等对沉淀效果的影响。确定的最佳工艺条件为:Cu~(2+) 136.52g/L,草酸加入系数0.9,搅拌速率300r/min,28℃,60min。在此工艺条件下,铜的沉淀率约为90%,草酸残留率小于1%,草酸铜产品的纯度达到98.33%。
[Abstract]:Copper was recovered and regenerated by copper oxalate precipitation method. The influence of the addition coefficient of oxalic acid (n _ (oxalic acid): n _ (Cu),) on the precipitation effect was studied. The optimum technological conditions were determined as follows: 1: Cu2 136.52 g / L, oxalic acid addition coefficient 0.9, stirring rate 300 r / min ~ 28 鈩，

本文编号：2093358