Title:
ADSORBENT PARTICLES, METHOD FOR PRODUCING ADSORBENT PARTICLES, BASE MATERIAL PARTICLES, FILLING COLUMN, AND METHOD FOR RECOVERING RARE EARTH ELEMENT
Document Type and Number:
WIPO Patent Application WO/2022/102373
Kind Code:
A1
Abstract:
Disclosed are adsorbent particles including porous carrier particles that contain an organic polymer, polyethylenimines that have adhered to the surface of the porous carrier particles, and diglycolic acid residues that are bonded to amino groups in the polyethylenimines. The most-frequent pore diameter of the porous carrier particles exceeds 10 nm.
Inventors:
AOSHIMA MASAHIRO (JP)
ISHIKAWA YOHEI (JP)
MIYATAKE MASATO (JP)
ISHIKAWA YOHEI (JP)
MIYATAKE MASATO (JP)
Application Number:
PCT/JP2021/039082
Publication Date:
May 19, 2022
Filing Date:
October 22, 2021
Export Citation:
Assignee:
SHOWA DENKO MATERIALS CO LTD (JP)
International Classes:
B01J20/26; B01J20/28; B01J20/285; B01J20/289; B01J20/30; B01J20/34; C02F1/28; C22B59/00
Domestic Patent References:
| WO2014157225A1 | 2014-10-02 | |||
| WO2020251000A1 | 2020-12-17 | |||
| WO2020225964A1 | 2020-11-12 |
Foreign References:
| JP2013500291A | 2013-01-07 | |||
| JP2016053117A | 2016-04-14 | |||
| JP2019198801A | 2019-11-21 | |||
| JP2019141810A | 2019-08-29 | |||
| JP2021109138A | 2021-08-02 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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