铜蚀刻废液制备氧化铜  

Preparation of Copper Oxide from Copper Etching Liquid Waste

作　　者：张晃初 龚俊 潘湛昌[2] 肖楚民[2] 胡光辉[2] 魏志钢[2] 

机构地区：[1]胜宏科技(惠州)有限公司,广东惠州516000 [2]广东工业大学轻工化工学院,广东广州510006

出　　处：《化学与生物工程》2012年第3期79-81,共3页Chemistry & Bioengineering

基　　金：广东省科技计划资助项目(2011B031000013);广东工业大学-胜宏科技(惠州)有限公司产学研资助项目

摘　　要：采用沉淀法分别以酸性蚀刻废液、酸性和碱性混合蚀刻废液制取氧化铜,并优化了工艺条件。结果表明,酸性蚀刻废液和混合蚀刻废液中铜离子沉淀的最佳pH值分别为9和4.3,氢氧化铜沉淀的最佳分解温度和时间分别为500℃和30min,采用自来水洗3次、纯净水洗3次的洗涤方式,可有效去除沉淀中的杂质氯离子和铵离子。In this paper, the copper oxide was prepared by precipitation method from acidic copper etching liquid waste alone or the mixture of acidic and alkaline copper etching liquid waste. And the preparation process was optimized. The optimum pH value was 9 and 4. 3 for copper hydroxide precipitation and basic copper chlo- ride precipitation,respectively. The decomposition temperature and time of precipitate Cu（OH）2 was 500 °C and 30 min. The best washing mode was washing for three times by water and then washing for three times by pure water.

关 键 词：氧化铜 铜蚀刻废液 沉淀法 印刷电路板 

分 类 号：X781.1[环境科学与工程—环境工程]