A Method of Recycling Waste Solution of Copper Plating Using Cyanidation in Laboratory
The method of recycling waste solution of copper plating using cyanidation in laboratory involves the comprehensive utilization of waste solution in the electroplating field.The method includes the following steps:first,add activated carbon into the waste to remove the organic impurities,lower the temperature of the waste with cooling fin and form sediments to remove carbonate salt in it.Add sodium sulfide,alizarin into the waste,and the containing heavy metal element Pb2+,Zn2+ and Cr3+ in it precipitate through chemical reactions.Place the waste solution in the closed container and make cyanide hydrolyze to produce non-toxic sodium formate and ammonia by adding alkali and under heat and pressure conditions.It provides an easy and convenient method,which can effectively recover resources,and reduce pollution for recycling copper cyanide waste solution in laboratory.
copper plating using cyanidation waste solution recycling
LEI Shi DESHENG Zhu
School of Materials Science and Engineering,Shandong Jianzhu University,Fengming Road,Jinan 250101,C Fire prevention division of Qingdao fire department,Qingdao,266071,China
国际会议
西安
英文
266-269
2012-06-12(万方平台首次上网日期,不代表论文的发表时间)