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    • 3. 发明公开
    • A PROCESS FOR RECOVERING POLYESTER FROM POLYESTER/ WOOL BLEND
    • VERFAHREN ZURRÜCKGEWINNUNGVON POLYESTER AUS EINER POLYESTER / WOLLMISCHUNG
    • EP3092270A4
    • 2017-08-16
    • EP15733231
    • 2015-01-06
    • RELIANCE IND LTD
    • RANGASWAMY VIDHYASRIVASTAVA ANURAGBALACHANDRAN VIJAIJOSHI HARSHVARDHAN
    • C08J11/14C08J11/04C08L67/02C08L89/00
    • C08J11/105C08J11/04C08J11/14C08J11/16C08J2367/02C08J2401/02C08J2401/24D06M16/003Y02P20/143Y02W30/70
    • The present disclosure relates to a process for recovering a polyester component and products of a non-polyester component from an article containing a polyester blend. The polyester blend consists of a polyester component and a non-polyester component. Particularly, the polyester component of the present disclosure is polyethylene terephthalate and the non-polyester component is at least one selected from the group consisting of cotton and viscose. The process of the present disclosure includes hydrolyzing the article using at least one hydrolyzing agent having pH ranging from 7 to 14 to obtain a first mixture containing the polyester component, the non-polyester component, optionally, products of the non-polyester component and the hydrolyzing agent. This is followed by incubating the first mixture using at least one enzyme selected from the group consisting of cellulose and pectinase to further convert the non-polyester component into products of the non-polyester component thereby releasing the polyester component.
    • 本公开涉及从含有聚酯共混物的制品中回收聚酯组分和非聚酯组分的产物的方法。 聚酯共混物由聚酯组分和非聚酯组分组成。 特别地,本公开的聚酯组分是聚对苯二甲酸乙二醇酯,非聚酯组分是选自棉和粘胶纤维中的至少一种。 本公开的方法包括使用pH为7-14的至少一种水解剂水解所述制品以获得第一混合物,所述第一混合物包含所述聚酯组分,所述非聚酯组分,任选地所述非聚酯组分的产物和 水解剂。 接着用至少一种选自纤维素和果胶酶的酶将第一混合物温育以进一步将非聚酯组分转化成非聚酯组分的产物,由此释放聚酯组分。