EP 4259405 A1 20231018 - METHOD FOR TREATING WASTE PLASTICS BY POLYMER DISSOLUTION AND ADSORPTION PURIFICATION
Title (en)
METHOD FOR TREATING WASTE PLASTICS BY POLYMER DISSOLUTION AND ADSORPTION PURIFICATION
Title (de)
VERFAHREN ZUR BEHANDLUNG VON KUNSTSTOFFABFÄLLEN DURCH REINIGUNG DURCH AUFLÖSUNG UND ADSORPTION VON POLYMEREN
Title (fr)
PROCEDE DE TRAITEMENT DE PLASTIQUES USAGES PAR DISSOLUTION DES POLYMERES ET PURIFICATION PAR ADSORPTION
Publication
Application
Priority
- FR 2013161 A 20201214
- EP 2021083873 W 20211202
Abstract (en)
[origin: CA3198542A1] Disclosed is a method for treating a plastic feedstock, the method including: (a) a dissolution step comprising bringing the feedstock into contact with a dissolution solvent, at a dissolution temperature between 100°C and 300°C and a dissolution pressure of between 1 and 20.0 MPa, the dissolution solvent having a boiling point between -50°c and 250°C, so as to obtain a crude polymer solution; (b) an adsorption step of bringing the crude polymer solution into contact with an absorbent, at a temperature of between 100 and 300°C and a pressure of between 1.0 and 20.0 MPa, so as to obtain a refined polymer solution; then (c) a step of recovering the polymers, so as to obtain at least a solvent fraction and a fraction of purified polymers.
IPC 8 full level
B29B 17/02 (2006.01); C08J 11/08 (2006.01)
CPC (source: EP IL KR US)
B29B 17/02 (2013.01 - EP IL KR US); C08J 11/08 (2013.01 - EP IL KR); B29B 2017/0217 (2013.01 - KR); B29B 2017/0224 (2013.01 - US); B29B 2017/0265 (2013.01 - KR US); B29B 2017/0293 (2013.01 - EP IL KR US); B29K 2023/06 (2013.01 - KR); B29K 2023/12 (2013.01 - KR); Y02W 30/20 (2015.05 - KR); Y02W 30/62 (2015.05 - EP IL KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3117396 A1 20220617; FR 3117396 B1 20230825; AU 2021403394 A1 20230713; AU 2021403394 A9 20240208; CA 3198542 A1 20220623; CN 116583557 A 20230811; EP 4259405 A1 20231018; IL 303666 A 20230801; JP 2023552636 A 20231218; KR 20230121092 A 20230817; MX 2023006539 A 20230616; TW 202237364 A 20221001; US 2024051186 A1 20240215; WO 2022128490 A1 20220623
DOCDB simple family (application)
FR 2013161 A 20201214; AU 2021403394 A 20211202; CA 3198542 A 20211202; CN 202180084207 A 20211202; EP 2021083873 W 20211202; EP 21831235 A 20211202; IL 30366623 A 20230612; JP 2023535664 A 20211202; KR 20237023199 A 20211202; MX 2023006539 A 20211202; TW 110146485 A 20211213; US 202118266895 A 20211202