PROCESS FOR RECOVERING AND RECYCLING POLYAMIDE FROM CARPET WASTE

摘要

The present invention relates to a process for treating polyamide-containing carpet waste by extracting the polyamide from the carpet waste with an extraction agent containing an aliphatic alcohol. The separated polyamide can then be recovered from the extract and recycled for further use. In addition, carpet waste containing two types of polyamides can be treated in accordance with the present invention so as to separately recover each type of polyamide. The process according to the present invention provides a high yield of the polyamide. The presence of other constituents normally present in carpets does not interfere with the separating and recycling of the polyamide.