Extraction of polybrominated diphenyl ethers from plastic solution by supercritical carbon dioxide anti-solvent
A new recycling process on supercritical CO2 extraction of PBDEs from waste HIPS plastic was developed in this paper,the influence laws of temperature,pressure,volume of supercritical CO2 and deca-BDE concentration on the separating efficiency were investigated,the measures for reducing the effect of deca-BDE concentration on the separating efficiency were proposed.The experimental results showed that the suitable supercritical condition was 65 ℃,20MPa,the optimum volume ratio of supercritical CO2 to HIPS solution was 2∶1,and the deca-BDE particles can be removed by a centrifuge process at speed of 10000 r/min and at 30℃.It was found that over 97 % of PBDEs was successfully removed and the concentration of PBDEs residual in HIPS was reduced to lower than 0.1% (dry) by this recycling process
Supercritical carbon dioxide anti-solvent high-impact polystyrene decabromodiphenyl ether
Shaohong Peng Sha Liang Mei Yu
Institute of Chemical and Environmental Technology ,Guangdong University of Petrochemical Technology Institute of Chemical and Environmental Technology ,Guangdong University of Petrochemical Technology
国际会议
The Seventh International Conference on Waste Management and Technology(第七届固体废物管理与技术国际会议(ICWMT7))
北京
英文
327-334
2012-09-05（万方平台首次上网日期，不代表论文的发表时间）