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公开(公告)号：US20230250252A1
公开(公告)日：2023-08-10
申请号：US18012988
申请日：2020-12-29
发明人： Huan CHANG , Nanbiao YE , Cheng LI , Wohua ZHOU , Xinxin LIU , Xiumei ZHU , Yujun SU , Lei TANG , Xianbo HUANG
CPC分类号： C08J11/08 , C08G69/48 , C08J2377/00
摘要： A recycling process for a polyamide waste material includes the following steps: adding a polyamide waste material into a mixed solvent to obtain a solution, heating the solution to 50° C. to a reflux temperature of the solution, conducting stirring for dissolution, and then conducting decolorization treatment and filtration to obtain a polyamide solution; and adding the polyamide solution into water, precipitating polyamide as a solid in deionized water, and conducting separation to obtain recycled polyamide. The mixed solvent includes, in parts by weight, 10-30 parts of phenol and 15-40 parts of toluene.
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