公开(公告)号：US20250100974A1

公开(公告)日：2025-03-27

申请号：US18832297

申请日：2023-01-27

Applicant: CAP III B.V.

Inventor： Jasper Verduyckt ,  Marijke Hilde Leen Groothaert ,  Anna Dite Cuiper ,  Wenjing Fu ,  Johan Thomas Tinge

IPC: C07D223/10

Abstract: The present invention provides an improved process for the recovery of ε-caprolactam from Nylon 6 comprising multi-component material, in particular multi-layered film. Further, the invention provides a plant configured to carry out the process of the invention, and the recovered e-caprolactam obtainable by the process of the invention that has a product carbon footprint of less than 2.5 kg CO2 equivalent per kg purified e-caprolactam (based on data originating from ecoinvent version 3.7.1; location: Europe).

公开(公告)号：US20250136547A1

公开(公告)日：2025-05-01

申请号：US18832305

申请日：2023-01-27

Applicant: CAP III B.V.

Inventor： Jasper Verduyckt ,  Peter Roos ,  Kate Emily Murphy ,  Henricus Anna Christiaan Baur ,  Wenjing Fu ,  Johan Thomas Tinge

IPC: C07D201/16 ,  B09B3/40 ,  B09B3/70 ,  B09B3/80 ,  B09B101/75

Abstract: The present invention provides a process and a plant for recovering purified-caprolactam from polyamide 6 comprising fishing nets, wherein the plant comprises a depolymerization section [B], a recovery section [C], and a purification section [D]. The present invention also provides purified ε-caprolactam that has a particularly low product carbon footprint and is obtained via depolymerization of polyamide 6 from fishing nets.