Method of treating water with resin bound ionic silver 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
US5366636 A 1994-11-22 [US5366636] / 1994-11-22
申请号/申请日
1994US-08210876 / 1994-03-18
发明人
MARCHIN GEORGE L;LAMBERT JACK L;
申请人
KANSAS STATE UNIVERSITY RESEARCH FOUNDATION;
主分类号
IPC分类号
A01N-059/16B01J-045/00C02F-001/50C02F-001/76
摘要
(US5366636) A method is provided for treating drinking water for disinfecting and/or removing iodide.  The method utilizes resin bound silver ions.  For performing the disinfection or iodide removal with minimal release of silver ions into the water being treated, a chelating resin having iminodiacetic acid chelating groups is employed, and the resin is loaded with not over 0.5 mol of silver ion per mol of iminodiacetate.
机翻摘要
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地址
代理人
代理机构
;
优先权号
1994US-08210876 1994-03-18
主权利要求
(US5366636) We claim: 1.  A method of treating drinking water for disinfecting and/or removing iodide, comprising contacting the drinking water with porous granules of a chelating resin having iminodiacetate acid chelating groups bonded to silver ions, said resin containing not over 0.5 mol of silver ion per mol of iminodiacetate, and separating the treated water from the granules. 2. The method of claim 1 in which the drinking water contains iodide ions which are removed therefrom by said contacting. 3. The method of claim 1 in which the water contains microorganism that are killed by said contacting. 4. The method of any one of claims 1, 2 or 3 in which said chelating resin is a gel-type resin. 5. The method of treating drinking water to kill microorganisms therein in which the water to be disinfected is initially contacted with porous granules of a polyiodide anion exchange resin resulting in the release of iodide ions into the treated water, wherein the improvement comprises contacting the treated iodide-containing water with porous granules of a chelating resin, said granules containing bound silver ions which react with the iodide ions to form substantially insoluble silver iodide, said chelating resin having iminodiacetate acid chelating groups and containing not over 0.5 mol of silver ion per mol of iminodiacetate.
法律状态
(US5366636) LEGAL DETAILS FOR US5366636  Actual or expected expiration date=2002-12-26    Legal state=DEAD    Status=LAPSED     Event publication date=1994-03-18  Event code=US/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=US US08210876  Application date=1994-03-18  Standardized application number=1994US-08210876     Event publication date=1994-03-18  Event code=US/EXMR  Event type=Administrative notifications  USPTO Examiner Name Primary Examiner: MCCARTHY, NEIL    Event publication date=1994-03-18  Event code=US/ART  Event type=Administrative notifications  USPTO Art Group  ART=1308     Event publication date=1994-03-18  Event code=US/DK  Event type=Examination events  Attorney Docket Number Docket Nbr: KSURFML4    Event publication date=1994-03-18  Event code=US/SMALL  Event type=Administrative notifications  Appl Has Filed a Verified Statement of Micro to Small Entity Status Business Entity Status: SMALL    Event publication date=1994-03-18  Event code=US/AIA  Event type=Administrative notifications  First Inventor File Indicated:  AIA=No     Event publication date=1994-04-21  Event code=US/DOCK  Event indicator=Pos  Event type=Examination events  Case Docketed to Examiner    Event publication date=1994-05-26  Event code=US/AS  Event type=Change of name or address  Event type=Reassignment  Assignment  Effective date of the event=1994-05-24  ASSIGNMENT OF ASSIGNORS INTEREST ASSIGNORS:MARCHIN, GEORGE L. LAMBERT, JACK L. REEL/FRAME:006997/0259     Event publication date=1994-06-13  Event code=US/IDS  Event type=Examination events  Event type=OAI  Information Disclosure Statement Filed    Event publication date=1994-06-23  Event code=US/EXIN  Event type=Examination events  Event type=OAO  Event type=INT  Examiner Interview Summary Record (PTOL - 413)    Event publication date=1994-06-23  Event code=US/NOAM  Event indicator=Pos  Event type=Examination events  Event type=OAO  Mail Notice of Allowance    Event publication date=1994-06-23  Event code=US/EXAC  Event type=Examination events  Event type=OAO  Examiner's Amendment Communication    Event publication date=1994-08-18  Event code=US/ANA  Event type=Corrections  Event type=OAI  Amendment after Notice of Allowance (Rule 312)    Event publication date=1994-09-02  Event code=US/N271  Event type=Examination events  Event type=OAO  Response to Amendment under Rule 312    Event publication date=1994-10-17  Event code=US/ISSM  Event indicator=Pos  Event type=Examination events  Event type=OAO  Event type=Restitution or restoration  Issue Notification Mailed    Event publication date=1994-11-22  Event code=US/A  Event indicator=Pos  Event type=Event indicating In Force  Patents Granted before 2001-04-15  Publication country=US  Publication number=US5366636  Publication stage Code=A  Publication date=1994-11-22  Standardized publication number=US5366636     Event publication date=1997-11-25  Event code=US/NMFP  Event type=Payment or non-payment notifications  Publication of First Notice of Maintenance Fees Payable. PAYMENT NOTICE YEAR:  Year of payment of annual fees=3     Event publication date=1998-04-13  Event code=US/FPAY  Event indicator=Pos  Event type=Event indicating In Force  Event type=Payment or non-payment notifications  Fee payment recorded   Annual fees payment date=1998-04-13     Year of payment of annual fees=4     Event publication date=1999-10-26  Event code=US/NMFP  Event type=Payment or non-payment notifications  Publication of First Notice of Maintenance Fees Payable. PAYMENT NOTICE YEAR:  Year of payment of annual fees=3     Event publication date=2001-12-04  Event code=US/NMFP  Event type=Payment or non-payment notifications  Publication of First Notice of Maintenance Fees Payable. PAYMENT NOTICE YEAR:  Year of payment of annual fees=7     Event publication date=2002-06-11  Event code=US/REMI  Event type=Administrative notifications  Maintenance fee reminder mailed    Event publication date=2002-11-22  Event code=US/FP  Event indicator=Neg  Event type=Event indicating Not In Force  Event type=Payment or non-payment notifications  Expired due to failure to pay maintenance fee  Effective date of the event=2002-11-22     Event publication date=2002-11-22  Event code=US/LAPS  Event indicator=Neg  Event type=Event indicating Not In Force  Event type=Payment or non-payment notifications  Lapse for failure to pay maintenance fees    Event publication date=2002-12-26  Event code=US/FP  Event indicator=Neg  Event type=Event indicating Not In Force  Event type=Payment or non-payment notifications  Expired due to failure to pay maintenance fee    Event publication date=2002-12-26  Event code=US/EXP  Event indicator=Neg  Event type=Event indicating Not In Force  Patent expired    Event publication date=2005-12-06  Event code=US/NMFP  Event type=Payment or non-payment notifications  Publication of First Notice of Maintenance Fees Payable. PAYMENT NOTICE YEAR:  Year of payment of annual fees=11
专利类型码
A
国别省市代码
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