Preparation of Basic Copper Carbonate from Waste Alkaline Etching

摘要：

The new method is that producing basic copper carbonate from waste etching solution containing copper.In the Process of leaching copper,the molar ratio of NH3 to CuO is 3:1,the molar ratio of NH4HCO2 to CuO is 1.25:1.and the reaction time is 2 hours without heating.In the Process of distilling ammonia.the reaction time is 2.5 hours under a vacuum degree of 0.06 MPa and reaction temperature 80℃～95℃.The mass fraction ofcopper in the product is 56％. The product quality excels that of this kind of the export standard.

关键词： waste etching solution basic copper carbonate comprehensive utilization

作者: ZHENG Shuaifei TONG Zhangfa CHEN Zhichuan

作者单位: School of Chemistry and Chemical Engineering Guangxi University,Nanning 530004,China Treatment Plant of Dangerous Wastes of Shenzhen,Guangdong 518049,China

会议类型: 国际会议

会议名称: The 2nd International Conference on Asian-European Environmental Technology and Knowledge Transfer(第二届亚欧环境技术及知识转化国际研讨会)

会议地点: 合肥

会议语种:英文

页码: 295-298

在线出版日期: 2008-06-05（万方平台首次上网日期，不代表论文的发表时间）