Forward osmosis system using coordination complexes 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
US2016016116 A1 2016-01-21 [US20160016116] / 2016-01-21
申请号/申请日
2014US-14771646 / 2014-04-07
发明人
GE QINGCHUN;CHUNG TAI-SHUNG;SU JINCAI;CUI YUE;
申请人
NATIONAL UNIVERSITY OF SINGAPORE;
主分类号
IPC分类号
B01D-061/00C02F-001/44C07F-001/08C07F-015/02C07F-015/06
摘要
(US20160016116) A forward osmosis system.  The system contains a forward osmosis membrane, a draw solution, and a feed solution.  The draw solution includes a coordination complex formed of a metal ion and an organic ligand coordinated to the metal ion.  Also disclosed are a method of separating a liquid using such a forward osmosis system and a coordination complex used in this system.
机翻摘要
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地址
代理人
代理机构
;
优先权号
2013US-61853462 2013-04-05 2014US-14771646 2014-04-07 2014WO-SG00154 2014-04-07
主权利要求
(US20160016116) What is claimed is: 1.  A forward osmosis system, comprising: a forward osmosis membrane having a first side and a second side,   a draw solution in contact with the forward osmosis membrane only on the first side and containing a coordination complex, and   a feed solution in contact with the forward osmosis membrane only on the second side and containing a liquid,    wherein the coordination complex contains a metal ion and an organic ligand that is coordinated to the metal ion. 2. The forward osmosis system of claim 1, wherein the metal ion is Ag+, Ti4+, Cr3+, Cr5+, Mn2+, Mn4+, Mn7+, Fe2+, Fe3+, Co2+, Co3+, Ni2+, Cu+, Cu2+, Zn2+, or a combination thereof, and the organic ligand is an organic compound that contains one or more carboxyl groups. 3. The forward osmosis system of claim 1, wherein the system has a reverse draw solute flux of 0.15 g/m2hr or lower and a liquid permeation flux of 10 L/m2.hr or greater, a ratio between the reverse draw solute flux and the liquid permeation flux being 0.01 g/L or lower; and the draw solution contains the coordination complex 2.5 to 75 wt % and has a osmotic pressure of 5 atm or greater. 4. The forward osmosis system of claim 1, wherein the system has a reverse draw solute flux of 0.1 g/m2.hr or lower and a liquid permeation flux of 20 L/m2.hr or greater, a ratio between the reverse draw solute flux and the liquid permeation flux being 0.005 g/L or lower; and the draw solution contains the coordination complex 20 to 55 wt % and has a osmotic pressure of 20 atm or greater. 5. The forward osmosis system of claim 1, wherein the feed solution, containing water to be purified, is brackish water, seawater, wastewater, impaired water, a mixture of oil and water, a mixture of alcohol and water, an aqueous solution containing a pharmaceutical agent, an aqueous solution containing protein, or juice. 6. The forward osmosis system of claim 1, wherein the metal ion is Fe2+, Fe3+, Co2+, Cu2+, Zn2+, or a combination thereof; and the organic ligand is citric acid, malic acid, tartaric acid, ethylenediaminetetraacetic acid, 1,3-diamino-2-hydroxypropane-N,N,N',N'-tetraacetic acid, ethylene glycol-O,O'-bis (2-aminoethyl)-N,N,N',N',-tetraacetic acid, 1,2-bis(o-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid, 1,2-diaminocyclohexane-N,N,N',N'-tetracetic acid monohydrate, N-(2-hydroxyethyl) ethylenediamine-N,N',N'-triacetic acid, 1,4,7-triazacyclononane-N,N,N''-triacetic acid, benzene-1,3,5-triacetic acid, or a combination thereof. 7. The forward osmosis system of claim 1, wherein the system has a reverse draw solute flux of 0.15 g/m2.hr or lower and a liquid permeation flux of 10 L/m2.hr or greater, a ratio between the reverse draw solute flux and the liquid permeation flux being 0.01 g/L or lower; and the draw solution contains the coordination complex 2.5 to 75 wt % and has a osmotic pressure of 5 atm or greater. 8. The forward osmosis system of claim 1, wherein the system has a reverse draw solute flux of 0.1 g/m2.hr or lower and a liquid permeation flux of 20 L/m2.hr or greater, a ratio between the reverse draw solute flux and the liquid permeation flux being 0.005 g/L or lower; and the draw solution contains the coordination complex 20 to 55 wt % and has a osmotic pressure of 20 atm or greater. 9. The forward osmosis system of claim 1, wherein the feed solution, containing water to be purified, is brackish water, seawater, wastewater, impaired water, a mixture of oil and water, a mixture of alcohol and water, an aqueous solution containing a pharmaceutical agent, an aqueous solution containing protein, or juice. 10. The forward osmosis system of claim 1, wherein the system has a reverse draw solute flux of 0.15 g/m2.hr or lower and a liquid permeation flux of 10 L/m2.hr or greater, a ratio between the reverse draw solute flux and the liquid permeation flux being 0.01 g/L or lower; and the draw solution contains the coordination complex 2.5 to 75 wt % and has a osmotic pressure of 5 atm or greater. 11. The forward osmosis system of claim 1, wherein the system has a reverse draw solute flux of 0.1 g/m2.hr or lower and a liquid permeation flux of 20 L/m2.hr or greater, a ratio between the reverse draw solute flux and the liquid permeation flux being 0.005 g/L or lower; and the draw solution contains the coordination complex 20 to 55 wt % and has a osmotic pressure of 20 atm or greater. 12. The forward osmosis system of claim 1, wherein the feed solution, containing water to be purified, is brackish water, seawater, wastewater, impaired water, a mixture of oil and water, a mixture of alcohol and water, an aqueous solution containing a pharmaceutical agent, an aqueous solution containing protein, or juice. 13. A method of separating a liquid, the method comprising: providing a forward osmosis system including a forward osmosis membrane, a draw solution, and a feed solution, the forward osmosis membrane having a first side and a second side,   placing the draw solution in contact with the forward osmosis membrane only on the first side, the draw solution containing a coordination complex formed of a metal ion and an orgainc ligand that is coordinated to the metal ion, and   placing the feed solution in contact with the forward osmosis membrane only on the second side, the feed solution containing a liquid to be separated, thereby obtaining a filtrate solution as the liquid in the feed solution passes through the forward osmosis membrane into the draw solution, the filtrate solution formed of the liquid and the draw solution. 14. The method of claim 13, wherein the system has a reverse draw solute flux of 0.15 g/m2.hr or lower and a liquid permeation flux of 10 L/m2.hr or greater, a ratio between the reverse draw solute flux and the liquid permeation flux being 0.01 g/L or lower; the draw solution contains the coordination complex 2.5 to 75 wt %, and has a osmotic pressure of 5 atm or greater; the metal ion is Ag+, Ti4+, Cr3+, Cr5+, Mn2+, Mn4+, Mn7+, Fe2+, Fe3+, Co2+, Co3+, Ni2+, Cu+, Cu2+, Zn2+, or a combination thereof; and the organic ligand is an organic compound that contains one or more carboxyl groups. 15. The method of claim 14, wherein the system has a reverse draw solute flux of 0.1 g/m2.hr or lower and a liquid permeation flux of 20 L/m2.hr or greater, a ratio between the reverse draw solute flux and the liquid permeation flux being 0.005 g/L or lower; the draw solution contains the coordination complex 20 to 55 wt % and has a osmotic pressure of 20 atm or greater; the metal ion is Fe2+, Fe3+, Co2+, Cu2+, Zn2+, or a combination thereof; and the organic ligand is citric acid, malic acid, tartaric acid, ethylenediaminetetraacetic acid, 1,3-diamino-2-hydroxypropane-N,N,N',N'-tetraacetic acid, ethylene glycol-O,O'-bis (2-aminoethyl)-N,N,N',N',tetraacetic acid, 1,2-bis(o-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid, 1,2-diaminocyclohexane-N,N,N',N'-tetracetic acid monohydrate, N-(2-hydroxyethyl) ethylenediamine-N,N',N'-triacetic acid, 1,4,7-triazacyclononane-N,N',N''-triacetic acid, benzene-1,3,5-triacetic acid, or a combination thereof. 16. The method of claim 15, furthering comprising removing the liquid from the filtrate solution, the liquid being water. 17. A coordination complex for use in a draw solution of a forward osmosis system for separating a liquid, wherein the coordination complex contains a metal ion and an organic ligand that is coordinated to the metal ion. 18. The coordination complex of claim 17, wherein the metal ion is Ag+, Ti4+, Cr3+, Cr5+, Mn2+, Mn4+, Mn7+, Fe2+, Fe3+, Co2+, Co3+, Ni2+, Cu+, Cu2+, Zn2+, or a combination thereof; and the organic ligand is citric acid, malic acid, tartaric acid, ethylenediaminetetraacetic acid, 1,3-diamino-2-hydroxypropane-N,N,N',N'-tetraacetic acid, ethylene glycol-O,O'-bis (2-aminoethyl)-N,N,N',N',-tetraacetic acid, 1,2-bis(o-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid, 1,2-diaminocyclohexane-N,N,N',N'-tetracetic acid monohydrate, N-(2-hydroxyethyl)ethylenediamine-N,N',N'-triacetic acid, 1,4,7-triazacyclononane-N,N',N''-triacetic acid, benzene-1,3,5-triacetic acid, or a combination thereof. 19. The coordination complex of claim 18, wherein the metal ion is Fe2+, Fe3+, Co2+, Cu2+, Zn2+, or a combination thereof; and the organic ligand is citric acid, malic acid, tartaric acid, or a combination thereof. 20. The coordination complex of claim 17, wherein the organic ligand is an organic compound that contains one or more carboxyl groups.
法律状态
(US20160016116) LEGAL DETAILS FOR US2016016116  Actual or expected expiration date=2034-04-07    Legal state=ALIVE    Status=PENDING     Event publication date=2014-04-07  Event code=US/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=US US14771646  Application date=2014-04-07  Standardized application number=2014US-14771646     Event publication date=2015-08-31  Event code=US/AS  Event type=Change of name or address  Event type=Reassignment  Assignment OWNER: NATIONAL UNIVERSITY OF SINGAPORE, SINGAPORE  Effective date of the event=2014-05-26  ASSIGNMENT OF ASSIGNORS INTEREST ASSIGNORS:GE, QINGCHUN CHUNG, TAI-SHUNG SU, JINCAI AND OTHERS REEL/FRAME:036459/0116     Event publication date=2015-08-31  Event code=US/AS  Event type=Change of name or address  Event type=Reassignment  Assignment OWNER: NATIONAL UNIVERSITY OF SINGAPORE, SINGAPORE  Effective date of the event=2014-05-26  ASSIGNMENT OF ASSIGNORS INTEREST ASSIGNORS:GE, QINGCHUN CHUNG, TAI-SHUNG SU, JINCAI AND OTHERS REEL/FRAME:036459/0116     Event publication date=2016-01-21  Event code=US/A1  Event type=Examination events  Application published  Publication country=US  Publication number=US2016016116  Publication stage Code=A1  Publication date=2016-01-21  Standardized publication number=US20160016116
专利类型码
A1
国别省市代码
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