Title:
DRAW SOLUTE, DRAW SOLUTION, AND FORWARD-OSMOSIS WATER TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2020/017588
Kind Code:
A1
Abstract:
Provided is a draw solute that has low viscosity, can be circulated in forward-osmosis water treatments, and gives draw solutions which have a higher osmotic pressure than seawater and in which the draw solute sediments upon heating. The draw solute comprises at least one vinyl ether polymer having an oxyethylene chain as a side chain and having a number-average molecular weight (Mn) of 13,000 or lower.
Inventors:
NISHIURA TAKAO (JP)
Application Number:
PCT/JP2019/028257
Publication Date:
January 23, 2020
Filing Date:
July 18, 2019
Export Citation:
Assignee:
MARUZEN PETROCHEM CO LTD (JP)
International Classes:
B01D61/00; C02F1/44; C08F16/18
Foreign References:
| JP2015047541A | 2015-03-16 | |||
| JP2017148724A | 2017-08-31 | |||
| JP2017148734A | 2017-08-31 | |||
| US20160074810A1 | 2016-03-17 | |||
| JP2009539584W | ||||
| US20060011544A1 | 2006-01-19 | |||
| JP2015047541A | 2015-03-16 |
Other References:
See also references of EP 3824989A4
Attorney, Agent or Firm:
THE PATENT CORPORATE BODY ARUGA PATENT OFFICE (JP)
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