摘要
研究沉淀法回收聚苯乙烯泡沫塑料(EPS)的工艺,利用石油裂解副产物为溶剂回收废旧聚苯乙烯泡沫塑料,以废治废,回收利用。溶剂低毒,对聚苯乙烯泡沫塑料溶解速度快,溶解量大,价廉易得。采用转式间歇投料并附加溶剂挥发分回收装置的工艺,溶剂回收率高,无二次污染,可循环使用。聚苯乙烯塑料(PS)回收率可达99%。
Processes of recycling the waste foamed polystyrene plastics by precipitation method were studied. The solvent from petroleum cracking by-product is utilized to recycle EPS in order to control pollution. The low-toxicity solvent with high solution rate and solubility is cheap and gained easily. Rotary intermittent-fed equipment with recycling unit of solvent volatile is used in order that high ratio of recovery of the used solvent is obtained and there is no secondary pollution. The solvent is recyclable. The recycling rate of PS can reach 99%.
出处
《环境污染治理技术与设备》
CAS
CSCD
北大核心
2005年第8期50-52,共3页
Techniques and Equipment for Environmental Pollution Control
基金
沈阳师范大学应用开发项目(200403)
关键词
溶剂
回收工艺
聚苯乙烯泡沫塑料
solvent
recycling
process
foamed polystyrene plastics
