WO2025261706 - METHOD FOR RECYCLING PLASTICS BY DISSOLUTION WITH SOLVENT RECOVERY, PURIFICATION AND REINTEGRATION
National phase entry is expected:
Publication Number
WO/2025/261706
Publication Date
26.12.2025
International Application No.
PCT/EP2025/064081
International Filing Date
22.05.2025
Title **
[English]
METHOD FOR RECYCLING PLASTICS BY DISSOLUTION WITH SOLVENT RECOVERY, PURIFICATION AND REINTEGRATION
[French]
PROCEDE DE RECYCLAGE DE PLASTIQUES PAR DISSOLUTION AVEC RECUPERATION, PURIFICATION ET REINTEGRATION DU SOLVANT
Applicants **
IFP ENERGIES NOUVELLES
Inventors
MANCINO, Gianluca
LEINEKUGEL LE COCQ, Damien
WEISS, Wilfried
RAVISE, Francis
NGUYEN-HONG, Duc
Priority Data
FR2406674
21.06.2024
FR
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
| * | |
| Number of Office Actions | * |
| * | |
International Searching Authority |
EPO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
|
* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2334 | |
| EPO | Filing, Examination, Granting | 9195 | |
| Japan | Filing, Examination, Granting | 2171 | |
| South Korea | Filing, Examination, Granting | 2044 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
20,484
Contact Us
Abstract[English]
The present invention relates to a method for treating a plastic feedstock, comprising: a) a step of dissolving the plastic feedstock in a dissolution solvent comprising a recycled solvent stream, to obtain a crude polymer solution, b) a step of purifying the crude polymer solution, then c) a solvent-polymer separation step to obtain a stream of purified thermoplastics, including a series of gas-liquid separation sections, each producing a liquid effluent, which comprises the targeted thermoplastics, and a gaseous effluent which comprises dissolution solvent, d) a dissolution solvent recycling step, comprising: d1) topping of at least a fraction of the gaseous effluent from the first gas-liquid separation section, and/or d2) tailing of at least a fraction of the gaseous effluent from the last gas-liquid separation section. The present invention also relates to a device for performing said treatment method.[French]
La présente invention concerne un procédé de traitement d'une charge plastique, comprenant : a) une étape de dissolution de la charge plastique dans un solvant de dissolution comprenant un flux de solvant recyclé, pour obtenir une solution polymère brute, b) une étape de purification de la solution polymère brute, puis c) une étape de séparation solvant-polymère pour obtenir un flux de thermoplastiques purifiés, mettant en œuvre une série de sections de séparation gaz-liquide, chacune produisant un effluent liquide, qui comprend les thermoplastiques visés, et un effluent gaz qui comprend du solvant de dissolution, d) une étape de recyclage du solvant de dissolution, comprenant : d1) un étêtage d'au moins une fraction de l'effluent gaz issu de la première section de séparation gaz-liquide, et/ou d2) un équeutage d'au moins une fraction de l'effluent gaz issu de la dernière section de séparation gaz-liquide. La présente invention concerne aussi un dispositif pour mettre en œuvre ledit procédé de traitement.