Title:
DRAW SOLUTION, WATER TREATMENT METHOD, AND WATER TREATMENT APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/153273
Kind Code:
A1
Abstract:
For the purpose of providing a draw solution containing an UCST-type polymeric compound useful as a draw solute in a forward osmosis membrane separation method for performing the membrane separation of water using a forward osmosis membrane, a water treatment method and a water treatment apparatus, the draw solution contains a polymeric compound produced using, as starting materials, a compound represented by general formula (a) and a compound represented by general formula (b) as a draw solute. [In formula (a) and formula (b), R1 and R2 each independently represent a hydrogen atom or a methyl group.]
Inventors:
NAGASAKO TADASHI (JP)
NAGAOKA HIROKAZU (JP)
TAKAHASHI TOMOKI (JP)
NAGAOKA HIROKAZU (JP)
TAKAHASHI TOMOKI (JP)
Application Number:
PCT/JP2023/003050
Publication Date:
August 17, 2023
Filing Date:
January 31, 2023
Export Citation:
Assignee:
JNC CORP (JP)
UNIV NIHON (JP)
UNIV NIHON (JP)
International Classes:
B01D61/00; C02F1/44; C08F220/42; C08F220/56
Domestic Patent References:
| WO2020188839A1 | 2020-09-24 |
Foreign References:
| JPH04351615A | 1992-12-07 | |||
| JP2015047541A | 2015-03-16 | |||
| JP2015160164A | 2015-09-07 | |||
| JP2016067989A | 2016-05-09 | |||
| JP2013194240A | 2013-09-30 | |||
| JP2022036439A | 2022-03-08 |
Other References:
BEATRIZ A. PINEDA-CONTRERAS, HOLGER SCHMALZ, SEEMA AGARWAL: "pH dependent thermoresponsive behavior of acrylamide–acrylonitrile UCST-type copolymers in aqueous media", POLYMER CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, CAMBRIDGE, vol. 7, no. 10, 1 January 2016 (2016-01-01), Cambridge , pages 1979 - 1986, XP055502089, ISSN: 1759-9954, DOI: 10.1039/C6PY00162A
BEATRIZ A. PINEDA-CONTRERAS, HOLGER SCHMALZ, SEEMA AGARWAL: "pH dependent thermoresponsive behavior of acrylamide–acrylonitrile UCST-type copolymers in aqueous media", POLYMER CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, CAMBRIDGE, vol. 7, no. 10, 1 January 2016 (2016-01-01), Cambridge , pages 1979 - 1986, XP055502089, ISSN: 1759-9954, DOI: 10.1039/C6PY00162A
BEATRIZ A. PINEDA-CONTRERAS, HOLGER SCHMALZ, SEEMA AGARWAL: "pH dependent thermoresponsive behavior of acrylamide–acrylonitrile UCST-type copolymers in aqueous media", POLYMER CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, CAMBRIDGE, vol. 7, no. 10, 1 January 2016 (2016-01-01), Cambridge , pages 1979 - 1986, XP055502089, ISSN: 1759-9954, DOI: 10.1039/C6PY00162A
Attorney, Agent or Firm:
OKUBO, Katsuyuki (JP)
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