废旧光盘化学处理工艺探讨及优化  

The craft discussion and optimization of chemical treatment for waste compact disc

作　　者：郑吕哲 杨莉[1] 

机构地区：[1]南昌航空大学环境与化学工程学院,江西南昌330063

出　　处：《江西化工》2014年第2期145-147,共3页Jiangxi Chemical Industry

摘　　要：针对废旧光盘的化学法处理,配制了次氯酸钠和氢氧化钠混合碱式盐洗脱液,剥离了印刷层、保护层,利用1,2-二氯乙烷溶解聚碳酸酯基盘,再用乙醇反沉淀,在1,2-二氯乙烷和乙醇混合废液中加入等体积水,将1,2-二氯乙烷和乙醇分离回收。实验表明:次氯酸钠和氢氧化钠质量比为6:4,洗脱液浓度为15%时洗脱效果较好,洗脱时间约35min。1,2-二氯乙烷溶解时间为5h,聚碳酸酯粗颗粒的回收率为75.4%,1,2-二氯乙烷回收率为75%。In view of chemical treatment of waste compact disc, we compounded the sodium hypochlorite and the sodium hy- droxide mixed salt eluent, stripped the printing level, the protector, used 1,2 - dichloroethane to dissolve the polymerization disc, the ethyl alcohol counterprecipited, joined water into 1,2 - dichloroethane and ethyl alcohol mixed waste liquid, to scparate 1,2 - dichloroethane from ethyl alcohol. The experiment indicated that the effect of eluention was better at ritio of 6：4 of sodium hypochlorite and the sodium hydroxide, which the eluent density was 15% in elution time of 35min approximately. The dissolution time was 5h, which the percent recovery was 75.4% with 1,2 - dichloroethane of 75 %.

关 键 词：废旧光盘 化学洗脱 1 2-二氯乙烷 

分 类 号：TQ59[化学工程—精细化工]