综合利用聚酯废液的新方法

A new route on comprehensive utilization of polyester waste liquid

从涤纶厂生产聚酯切片的废液中蒸馏回收甲醇与乙二醇,余下的固体废渣经水洗、过滤、干燥和粉碎后可代替价格昂贵的酚醛树脂或虫胶漆片作为烟花产品的原料,既降低了烟花产品成本,又获得了较大的经济效益,为综合治理聚酯废液开辟了新途径。

According to thd new route on comprehensive utilization of polyester waste liquid, methanol and ethylene glycol can be recovered by distilling the polyester chip waste liquid, and the residues can be used to replace the expensive phenolic resin or shellac as raw materials in producing fireworks through washing , filtering, drying and crushing. The cost of fireworks is reduced, and great economic benefits can thereby be obtained.