碱式碳酸铜制备实验的探索

The exploration of preparation of the basis carbonate copper

以废杂铜为原料,用浓硝酸浸出硝酸铜溶液,利用可控的封闭装置处理生成的NO2,减少其对大气的污染。用碳酸钠与硝酸铜溶液进行反应,反应温度为60～80℃,反应终点的pH=8.5左右,漂洗3次。通过元素分析、红外光谱分析、XRD等手段确定了该方法制备出高纯度的碱式碳酸铜。

The copper nitrate was prepared with concentrated nitric acid and scrap as raw materials. The generating NO2 was handled by using the closure controlled device. The basis carbonate copper was synthesized by sodium carbonate and copper nitrate solution. The experiment conditions were determined that the reaction temperature was 60 - 80 ℃, final pH of the solution was 8.5, rinse 3 times. By elemental analysis, IR, XRD, high purity basic copper carbonate was prepared.