(METH)acrylic polymer regeneration device, method for regenerating (METH)acrylic polymer, and method for producing monomer having (METH)acrylic group

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The (meth)acrylic polymer recycling device addresses inefficiencies in energy utilization and corrosion by using pyrolysis gas heat in a recycling process to dry materials and treat residues, enhancing efficiency and reducing costs.

WO2025238913A1 Publication Date: 2025-11-20SUMITOMO CHEM CO LTD

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Patent Information

Application Number: PCT/JP2024/045686
Authority / Receiving Office: WO · WO
Patent Type: Applications
Current Assignee / Owner
Priority Date: 2024-05-13
Filing Date: 2024-12-24
Publication Date: 2025-11-20

Application Information

Patent Timeline

13 May 2024

Priority

24 Dec 2024

Application

PCT/JP2024/045686

20 Nov 2025

Publication

WO2025238913A1

IPC: C08J11/12

CPC: Y02W30/62; C07C67/00; C07C69/54; C08J11/12

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Application Domain

Organic compound preparation Carboxylic acid esters preparation

Technology Topics

Methacrylate Polymer science

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AI Technical Summary

Technical Problem

Existing (meth)acrylic polymer recycling methods are inefficient in utilizing energy consumed during the recycling process, leading to increased energy costs and potential equipment corrosion due to liquid and halogen-based compound contamination.

Method used

A (meth)acrylic polymer recycling device equipped with a pyrolysis section, heat exchange section, and transfer line that utilizes heat from pyrolysis gas to heat media, which is then used to dry raw materials, treat residues, and process pyrolysis gas, enhancing energy efficiency and reducing corrosion.

Benefits of technology

The device improves energy utilization efficiency in the recycling process, reduces energy consumption, and minimizes equipment corrosion by effectively drying raw materials and treating residues and gases, thereby optimizing the chemical recycling of (meth)acrylic polymers.

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Abstract

The present invention addresses the problem of providing: a (meth)acrylic polymer regeneration device having excellent utilization efficiency of energy consumed in recycling treatment; a (meth)acrylic polymer regeneration treatment method; and a method for producing a (meth)acrylic acid ester.　The present invention relates to a (meth)acrylic polymer regeneration device comprising a thermal decomposition unit that thermally decomposes a (meth)acrylic polymer to obtain pyrolysis gas, a heat exchange unit that transfers heat from the pyrolysis gas to a heat medium, and a transfer line that transfers the heat medium.

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