Title:
CATALYST FOR DECOMPOSING POLYESTER-BASED RESIN, METHOD FOR PRODUCING SAME, AND METHOD AND APPARATUS FOR DECOMPOSING POLYESTER-BASED RESIN USING CATALYST
Document Type and Number:
WIPO Patent Application WO/2022/211581
Kind Code:
A1
Abstract:
Provided are a catalyst for decomposing a polyester-based resin, a method for producing same, and a method and apparatus for decomposing a polyester-based resin using the catalyst. The catalyst for decomposing the polyester resin includes a core as a support and a catalyst layer provided on the surface of the core, and thus, can catalyze a glycolysis reaction of the polyester resin on the surface. The core has paramagnetism, and thus, it is easy to separate or remove by an external magnet. Accordingly, the process of recovering the catalyst from the reaction product after the reaction is simplified or a separate process therefor is not required. In addition, even if it is recovered and reused after the completion of the reaction, the conversion rate of the catalyst can be maintained for a long time, thereby improving the economic feasibility of the decomposition and regeneration process of waste polyester-based resins.
Inventors:
KIM YONG HWAN (KR)
HWANG JEONG WOOK (KR)
HWANG JEONG WOOK (KR)
Application Number:
PCT/KR2022/004724
Publication Date:
October 06, 2022
Filing Date:
April 01, 2022
Export Citation:
Assignee:
DAE IL CORP (KR)
International Classes:
B01J37/00; B01J23/78; B01J35/00; B01J37/08; B03C1/005; C08J11/16
Foreign References:
| KR20100120904A | 2010-11-17 | |||
| KR101167288B1 | 2012-07-23 | |||
| KR20150004213A | 2015-01-12 | |||
| KR20020041829A | 2002-06-03 | |||
| JP2012187565A | 2012-10-04 |
Attorney, Agent or Firm:
TW INTERNATIONAL PATENT AND LAWFIRM (KR)
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