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化学学报
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化学学报 ›› 2002, Vol. 60 ›› Issue (4): 753-757. 上一篇    

研究论文

离子液体中聚碳酸酯光盘的降解-碳酸二苯酯的回收

顾彦龙;杨宏洲;邓友全   

  1. 中国科学院兰州化学物理研究所生态与绿色化学中心,兰州(730000)
  • 发布日期:2002-04-15

Catalytic Degradation of Polycarbonate CD in Ionic Liquids: Recovery of Diphenyl Carbonate

Gu Yanlong;Yang Hongzhou;Deng Youquan   

  1. State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Ecological and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences,Lanzhou(730000)
  • Published:2002-04-15

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被引次数

101 | 10

利用多种氯化铝离子液体和氯化铝离子液体/无机酸体系为反应介质，考察了 较温和条件下废旧聚碳酸酯光盘的降解行为。实验结果表明，在酸性的甲基丁基咪 唑盐的氯化铝离子液体/硫酸介质中，常压，100 ℃条件下，可将废旧聚碳酸酯光 盘有效地降解，主要产物为碳酸二苯酯。反应72 h后，收率为63%。

关键词: 聚碳酸酯, 降解, 催化, 碳酸酯, 咪唑 P

Degradation of waste polycarbonate compact disc (CD) powder using various chloroaluminate (III) ionic liquids and chloroaluminate (III) ionic liquid/inorganic acid systems as reaction medium was investigated under atmospheric pressure and at a temperature range from 100 to 180 ℃. It was observed that 1-n-butyl-3-methylimidazolium heptachlorodialuminate/H_2SO_4 system ([BMIM][AlCl_4], AlCl_3 = 67 mol%) was the most active catalytic medium for the degradation of waste polycarbonate compact disc powder. At 100 ℃, the main degradated product was diphenyl carbonate and a 63% of yield of diphenyl carbonate was achieved after 72 h.

Key words: POLYCARBONATE, DEGRADATION, CATALYSIS, POLYCARBONATE, GLYOXALINE P

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