Title:
WATER-SOLUBLE CHELATING POLYMER AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/149402
Kind Code:
A1
Abstract:
The present invention provides a water-soluble chelating polymer which is capable of quickly trapping trace amounts of heavy metal ions and reducing the amount of the heavy metal ions to the ppm level or less in a short period of time. The present invention uses a water-soluble chelating polymer wherein an anionic polymer having a carboxyl group, a sulfonic acid group and/or a sulfuric acid group and a chelating functional group having a cationic functional group are bonded to each other by an ionic bond; and this water-soluble chelating polymer contains 0.2 mmol/g to 6 mmol/g of the chelating functional group, while having a weight average molecular weight of 30,000 to 1,000,000.
Inventors:
INOUE HIROSHI (JP)
TOUGOU EIICHI (JP)
TOUGOU EIICHI (JP)
Application Number:
PCT/JP2023/002909
Publication Date:
August 10, 2023
Filing Date:
January 30, 2023
Export Citation:
Assignee:
TOSOH CORP (JP)
International Classes:
C08B37/04; B01J45/00; C02F1/42; C02F1/62; C02F1/64; C08B37/08; C08F251/00; H01M4/13; H01M4/139; H01M4/62
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Other References:
HE CHENGXIANG; GENDENSUREN BOLORMAA; KIM HYEJIN; LEE HYUNGIL; OH EUN-SUOK: "Electrochemical performance of polysaccharides modified by the introduction of SO3H as binder for high-powered Li4Ti5O12 anodes in lithium-ion batteries", JOURNAL OF ELECTROANALYTICAL CHEMISTRY, ELSEVIER, AMSTERDAM, NL, vol. 876, 1 August 2020 (2020-08-01), AMSTERDAM, NL, XP086306573, ISSN: 1572-6657, DOI: 10.1016/j.jelechem.2020.114532
OISHI, ASAKO; HORIBA, TATSUO; KUBOTA, KEI; ABE, YOSHINARI; TOGO, EIICHI; INOUE, HIROSHI; KOMABA, SHINICHI: "3I02 Electrochemical properties of 5 V-class spinel oxide with substituted alginate-based binder", LECTURE ABSTRACTS OF THE 87TH ELECTROCHEMICAL SOCIETY OF JAPAN (ECSJ) SPRING MEETING; NAGOYA, JAPAN; MARCH 17-19, 2020, vol. 87, 3 March 2020 (2020-03-03) - 19 March 2020 (2020-03-19), pages 3I02, XP009539883
MOHAMMAD NOOR; ATASSI YOMEN; TALLY MOHAMMAD: "Synthesis and swelling behavior of metal-chelating superabsorbent hydrogels based on sodium alginate-g-poly(AMPS-co-AA-co-AM) obtained under microwave irradiation", POLYMER BULLETIN, SPRINGER, HEIDELBERG., DE, vol. 74, no. 11, 7 March 2017 (2017-03-07), DE , pages 4453 - 4481, XP036316579, ISSN: 0170-0839, DOI: 10.1007/s00289-017-1967-5
LIAO HAOJIE, HE WENJIE, LIU NAN, LUO DERONG, DOU HUI, ZHANG XIAOGANG: "Facile In Situ Cross-Linked Robust Three-Dimensional Binder for High-Performance SiOx Anodes in Lithium-Ion Batteries", APPLIED MATERIALS & INTERFACES, AMERICAN CHEMICAL SOCIETY, US, vol. 13, no. 41, 20 October 2021 (2021-10-20), US , pages 49313 - 49321, XP009547865, ISSN: 1944-8244, DOI: 10.1021/acsami.1c13937
OISHI, ASAKO; HORIBA, TATSUO; KUBOTA, KEI; ABE, YOSHINARI; TOGO, EIICHI; INOUE, HIROSHI; KOMABA, SHINICHI: "3I02 Electrochemical properties of 5 V-class spinel oxide with substituted alginate-based binder", LECTURE ABSTRACTS OF THE 87TH ELECTROCHEMICAL SOCIETY OF JAPAN (ECSJ) SPRING MEETING; NAGOYA, JAPAN; MARCH 17-19, 2020, vol. 87, 3 March 2020 (2020-03-03) - 19 March 2020 (2020-03-19), pages 3I02, XP009539883
MOHAMMAD NOOR; ATASSI YOMEN; TALLY MOHAMMAD: "Synthesis and swelling behavior of metal-chelating superabsorbent hydrogels based on sodium alginate-g-poly(AMPS-co-AA-co-AM) obtained under microwave irradiation", POLYMER BULLETIN, SPRINGER, HEIDELBERG., DE, vol. 74, no. 11, 7 March 2017 (2017-03-07), DE , pages 4453 - 4481, XP036316579, ISSN: 0170-0839, DOI: 10.1007/s00289-017-1967-5
LIAO HAOJIE, HE WENJIE, LIU NAN, LUO DERONG, DOU HUI, ZHANG XIAOGANG: "Facile In Situ Cross-Linked Robust Three-Dimensional Binder for High-Performance SiOx Anodes in Lithium-Ion Batteries", APPLIED MATERIALS & INTERFACES, AMERICAN CHEMICAL SOCIETY, US, vol. 13, no. 41, 20 October 2021 (2021-10-20), US , pages 49313 - 49321, XP009547865, ISSN: 1944-8244, DOI: 10.1021/acsami.1c13937
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