Title:
METHOD AND REACTOR SYSTEM FOR DEPOLYMERIZING A POLYMER USING A REUSABLE CATALYST
Document Type and Number:
WIPO Patent Application WO/2023/008997
Kind Code:
A3
Abstract:
A method and reactor system for depolymerizing a polymer is described. The method comprises the steps of providing the polymer and a solvent in a reactor to obtain a reaction mixture, the solvent being capable of reacting with the polymer to degrade the polymer into at least repeating units; providing a reusable catalyst in the reaction mixture being capable of catalyzing said degradation; degrading the polymer in the reaction mixture at degradation reaction conditions to obtain a depolymerized mixture comprising at least light oligomers having from 2 to 4 repeating units inclusively; removing unreacted polymer, solid particles and optionally very heavy oligomers from the depolymerized mixture after exiting the reactor; recovering at least a part of the reusable catalyst from the depolymerized mixture; and recovering the light oligomers from the depolymerized mixture. During recovery of the reusable catalyst, the depolymerized mixture comprises heavy oligomers having at least 5 repeating units.
Inventors:
FUFACHEV EGOR VASILYEVICH (NL)
WOLTERS JOOST ROBERT (NL)
DE GROOT MICHAEL JOSEF (NL)
WOLTERS JOOST ROBERT (NL)
DE GROOT MICHAEL JOSEF (NL)
Application Number:
PCT/NL2022/050440
Publication Date:
March 30, 2023
Filing Date:
July 26, 2022
Export Citation:
Assignee:
IONIQA TECH B V (NL)
International Classes:
C08J11/24
Domestic Patent References:
| WO2021089803A1 | 2021-05-14 | |||
| WO2020051665A1 | 2020-03-19 |
Foreign References:
| US10421849B2 | 2019-09-24 |
Attorney, Agent or Firm:
BROUWER, Hendrik Rogier (NL)
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