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沉淀法回收聚苯乙烯泡沫塑料的工艺研究

Research on processes of recycling the waste foamed polystyrene plastics by precipitation method

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【作者】 宋学君孙挺武士威李国德

【Author】 Song Xuejun Sun Ting(Department of Chemistry, Northeastern University, Shenyang 110004)Wu Shiwei Li Guode(Department of Chemistry, Shenyang Normal University, Shenyang 110034)

【机构】 东北大学化学系沈阳师范大学化学系沈阳师范大学化学系 沈阳110004沈阳110004沈阳110034沈阳110034

【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%。

【Abstract】 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%.

【关键词】 溶剂回收工艺聚苯乙烯泡沫塑料
【Key words】 solventrecyclingprocessfoamed polystyrene plastics
【基金】 沈阳师范大学应用开发项目(200403)
  • 【文献出处】 环境污染治理技术与设备 ,Techniques and Equipment for Environmental Pollution Control , 编辑部邮箱 ,2005年08期
  • 【分类号】X783
  • 【被引频次】11
  • 【下载频次】439
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