FR2457712A1 - Strongly basic, low chloride content anionic ion exchange resin - used for water purificn. in nuclear plants - Google Patents

Strongly basic, low chloride content anionic ion exchange resin - used for water purificn. in nuclear plants

Info

Publication number
FR2457712A1
FR2457712A1 FR7913559A FR7913559A FR2457712A1 FR 2457712 A1 FR2457712 A1 FR 2457712A1 FR 7913559 A FR7913559 A FR 7913559A FR 7913559 A FR7913559 A FR 7913559A FR 2457712 A1 FR2457712 A1 FR 2457712A1
Authority
FR
France
Prior art keywords
chloride
ion exchange
chloride content
strongly basic
exchange resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7913559A
Other languages
French (fr)
Other versions
FR2457712B1 (en
Inventor
G Fene
J Boutier
P Grammont
A B Pachkov
I N Medvedev
E V Zambrovskaja
V A Grigorjev
D P Solnceva
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dia Prosim
Original Assignee
Dia Prosim
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dia Prosim filed Critical Dia Prosim
Priority to FR7913559A priority Critical patent/FR2457712A1/en
Publication of FR2457712A1 publication Critical patent/FR2457712A1/en
Application granted granted Critical
Publication of FR2457712B1 publication Critical patent/FR2457712B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/26—Removing halogen atoms or halogen-containing groups from the molecule
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/016—Modification or after-treatment of ion-exchangers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

Strongly basic, low chloride ion content anionic ion exchange resins are prepd. by treating an anionic resin in ionic chloride form and contg. a structural chlorine, with a basic soln. then with a soln. of an anion which displaces the chloride ion, converting to hydroxyl form and then rinsing with demineralised water. Improvement comprises pretreating the anionic resin with an 0.5-1.5N basic soln. at 10-30 deg.C to reduce the chloride content to 10-50%, conditioning it for at least 6 months at 10-30 deg.C until complete disappearance of the structural chlorine, again treating with a 2N basic soln. at 55-65 deg.C until a chloride content of 1-5% is obtd. and subsequently displacing the chloride ions with H2SO4 solns. of decreasing concns. at 55-65 deg.C to obtain a prod. contg. less than 50 mg chloride per kg.
FR7913559A 1979-05-29 1979-05-29 Strongly basic, low chloride content anionic ion exchange resin - used for water purificn. in nuclear plants Granted FR2457712A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7913559A FR2457712A1 (en) 1979-05-29 1979-05-29 Strongly basic, low chloride content anionic ion exchange resin - used for water purificn. in nuclear plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7913559A FR2457712A1 (en) 1979-05-29 1979-05-29 Strongly basic, low chloride content anionic ion exchange resin - used for water purificn. in nuclear plants

Publications (2)

Publication Number Publication Date
FR2457712A1 true FR2457712A1 (en) 1980-12-26
FR2457712B1 FR2457712B1 (en) 1983-09-23

Family

ID=9225943

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913559A Granted FR2457712A1 (en) 1979-05-29 1979-05-29 Strongly basic, low chloride content anionic ion exchange resin - used for water purificn. in nuclear plants

Country Status (1)

Country Link
FR (1) FR2457712A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0183158A2 (en) * 1984-11-23 1986-06-04 The Dow Chemical Company Method for preparation of anion exchange resins having very low chlorine content
EP0380273A1 (en) * 1989-01-23 1990-08-01 The Dow Chemical Company Reduction of leachables from type II anion exchange resins
EP0455628A4 (en) * 1987-01-12 1991-07-23 Dow Chemical Co Method for preparation of anion exchange resins having very low chlorine content.
US5091424A (en) * 1989-01-23 1992-02-25 The Dow Chemical Company Reduction of leachables from type II anion exchange resins
EP0530478A1 (en) * 1991-07-22 1993-03-10 Mitsubishi Chemical Corporation Method for treating a strongly basic anion exchange resin
EP0808852A2 (en) * 1996-05-21 1997-11-26 The Lubrizol Corporation Low chlorine polyalkylene substituted carboxylic acylating agent compositions and compounds derived therefrom

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2669713A (en) * 1950-10-27 1954-02-16 Dow Chemical Co Method of regenerating anion exchange resins
US2723245A (en) * 1952-12-30 1955-11-08 Dow Chemical Co Method of regenerating quaternary ammonium anion exchange resins
US2999821A (en) * 1958-10-17 1961-09-12 Rohm & Haas Regeneration of anion-exchange resins
US3645921A (en) * 1970-04-20 1972-02-29 Ecodyne Corp Regeneration of anion exchange resins
FR2314213A1 (en) * 1975-06-13 1977-01-07 Rohm & Haas LOW CHLORINE ANION EXCHANGER RESINS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2669713A (en) * 1950-10-27 1954-02-16 Dow Chemical Co Method of regenerating anion exchange resins
US2723245A (en) * 1952-12-30 1955-11-08 Dow Chemical Co Method of regenerating quaternary ammonium anion exchange resins
US2999821A (en) * 1958-10-17 1961-09-12 Rohm & Haas Regeneration of anion-exchange resins
US3645921A (en) * 1970-04-20 1972-02-29 Ecodyne Corp Regeneration of anion exchange resins
FR2314213A1 (en) * 1975-06-13 1977-01-07 Rohm & Haas LOW CHLORINE ANION EXCHANGER RESINS

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0183158A2 (en) * 1984-11-23 1986-06-04 The Dow Chemical Company Method for preparation of anion exchange resins having very low chlorine content
EP0183158A3 (en) * 1984-11-23 1989-02-22 The Dow Chemical Company Method for preparation of anion exchange resins having very low chlorine content
EP0455628A4 (en) * 1987-01-12 1991-07-23 Dow Chemical Co Method for preparation of anion exchange resins having very low chlorine content.
EP0455628A1 (en) * 1987-01-12 1991-11-13 The Dow Chemical Company Method for preparation of anion exchange resins having very low chlorine content
EP0380273A1 (en) * 1989-01-23 1990-08-01 The Dow Chemical Company Reduction of leachables from type II anion exchange resins
US5091424A (en) * 1989-01-23 1992-02-25 The Dow Chemical Company Reduction of leachables from type II anion exchange resins
EP0530478A1 (en) * 1991-07-22 1993-03-10 Mitsubishi Chemical Corporation Method for treating a strongly basic anion exchange resin
EP0808852A2 (en) * 1996-05-21 1997-11-26 The Lubrizol Corporation Low chlorine polyalkylene substituted carboxylic acylating agent compositions and compounds derived therefrom
EP0808852A3 (en) * 1996-05-21 1998-02-25 The Lubrizol Corporation Low chlorine polyalkylene substituted carboxylic acylating agent compositions and compounds derived therefrom

Also Published As

Publication number Publication date
FR2457712B1 (en) 1983-09-23

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse