FR2402623A1 - PROCESS FOR REMOVING CHROMATE IONS FROM AQUEOUS CHLORATE SOLUTIONS - Google Patents

PROCESS FOR REMOVING CHROMATE IONS FROM AQUEOUS CHLORATE SOLUTIONS

Info

Publication number
FR2402623A1
FR2402623A1 FR7826193A FR7826193A FR2402623A1 FR 2402623 A1 FR2402623 A1 FR 2402623A1 FR 7826193 A FR7826193 A FR 7826193A FR 7826193 A FR7826193 A FR 7826193A FR 2402623 A1 FR2402623 A1 FR 2402623A1
Authority
FR
France
Prior art keywords
chromate ions
solutions
aqueous solutions
chlorates
aqueous chlorate
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
FR7826193A
Other languages
French (fr)
Other versions
FR2402623B1 (en
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.)
Pennwalt Corp
Original Assignee
Pennwalt Corp
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 Pennwalt Corp filed Critical Pennwalt Corp
Publication of FR2402623A1 publication Critical patent/FR2402623A1/en
Application granted granted Critical
Publication of FR2402623B1 publication Critical patent/FR2402623B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B01J47/02—Column or bed processes
    • B01J47/04—Mixed-bed processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Detergent Compositions (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)

Abstract

L'invention concerne un procédé pour éliminer les ions chromate de solutions aqueuses d'un chlorate. Les ions chromate présents dans des solutions aqueuses riches en chlorates sont à peu près totalement éliminés par passage desdites solutions à travers un lit formé d'un mélange d'une résine d'échange anionique sous la forme chlorure et d'une résine d'échange cationique faiblement acide sous une forme hydrogène conditionnée. Application par exemple au traitement de solutions aqueuses riches en chlorates provenant de l'électrolyse de solutions de chlorure de sodium.The invention relates to a method for removing chromate ions from aqueous solutions of a chlorate. Chromate ions present in aqueous solutions rich in chlorates are almost completely eliminated by passing said solutions through a bed formed from a mixture of an anion exchange resin in the chloride form and an exchange resin. weakly acidic cationic hydrogen form. Application for example to the treatment of aqueous solutions rich in chlorates originating from the electrolysis of sodium chloride solutions.

FR7826193A 1977-09-13 1978-09-12 PROCESS FOR REMOVING CHROMATE IONS FROM AQUEOUS CHLORATE SOLUTIONS Granted FR2402623A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83286677A 1977-09-13 1977-09-13

Publications (2)

Publication Number Publication Date
FR2402623A1 true FR2402623A1 (en) 1979-04-06
FR2402623B1 FR2402623B1 (en) 1983-03-25

Family

ID=25262810

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7826193A Granted FR2402623A1 (en) 1977-09-13 1978-09-12 PROCESS FOR REMOVING CHROMATE IONS FROM AQUEOUS CHLORATE SOLUTIONS

Country Status (20)

Country Link
JP (1) JPS5450488A (en)
AR (1) AR219127A1 (en)
AU (1) AU522562B2 (en)
BE (1) BE870214A (en)
BR (1) BR7805948A (en)
CA (1) CA1112379A (en)
DD (1) DD138303A5 (en)
DE (1) DE2839894A1 (en)
DK (1) DK157360C (en)
FI (1) FI67494C (en)
FR (1) FR2402623A1 (en)
GB (1) GB2004262B (en)
HU (1) HU182557B (en)
IT (1) IT1107755B (en)
MX (1) MX150616A (en)
NL (1) NL187051C (en)
NO (1) NO151999C (en)
PL (1) PL112445B1 (en)
SE (1) SE431440B (en)
YU (1) YU216578A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176056A (en) * 1978-04-27 1979-11-27 Pennwalt Corporation Cyclic operation of a bed of mixed ion exchange resins
US4259297A (en) * 1979-09-04 1981-03-31 Olin Corporation Chromate removal from concentrated chlorate solution by chemical precipitation
CA1247761A (en) * 1983-12-13 1988-12-28 Robert Kunin Method for treating aqueous solutions with weakly acidic cation exchange resins
US4547291A (en) * 1983-12-13 1985-10-15 The Graver Company Method for treating aqueous solutions with weakly acidic cation exchange resins
AU2005216070B2 (en) 2004-02-20 2012-01-19 University Of Florida Research Foundation, Inc. System for delivering conformal radiation therapy while simultaneously imaging soft tissue

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB760524A (en) * 1954-05-21 1956-10-31 Permutit Co Ltd Improvements relating to the recovery of chromic or phosphoric acid
US3835001A (en) * 1973-04-30 1974-09-10 Penn Olin Chem Co Ion exchange removal of dichromates from electrolytically produced alkali metal chlorate-chloride solutions
US3980751A (en) * 1974-11-20 1976-09-14 Huron Chemicals Limited Ion exchange chromate removal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972810A (en) * 1974-07-15 1976-08-03 Chemical Separations Corporation Removal of chromium, chromate, molybdate and zinc
JPS5148563A (en) * 1974-10-24 1976-04-26 Kurita Water Ind Ltd Kuromuganjuhaisuino shoriho
JPS5290164A (en) * 1976-01-23 1977-07-28 Kurita Water Ind Ltd Method for treating water containing 6 valment chromium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB760524A (en) * 1954-05-21 1956-10-31 Permutit Co Ltd Improvements relating to the recovery of chromic or phosphoric acid
US3835001A (en) * 1973-04-30 1974-09-10 Penn Olin Chem Co Ion exchange removal of dichromates from electrolytically produced alkali metal chlorate-chloride solutions
US3980751A (en) * 1974-11-20 1976-09-14 Huron Chemicals Limited Ion exchange chromate removal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/64 *

Also Published As

Publication number Publication date
CA1112379A (en) 1981-11-10
DK157360C (en) 1990-05-21
JPS5450488A (en) 1979-04-20
AU3897678A (en) 1980-02-21
DD138303A5 (en) 1979-10-24
NL187051C (en) 1991-05-16
NO783088L (en) 1979-03-14
MX150616A (en) 1984-06-11
FI782748A (en) 1979-03-14
GB2004262B (en) 1982-03-24
NL7808907A (en) 1979-03-15
AU522562B2 (en) 1982-06-17
NL187051B (en) 1990-12-17
BE870214A (en) 1979-01-02
DK398878A (en) 1979-03-14
NO151999C (en) 1985-07-17
PL209536A1 (en) 1979-06-04
PL112445B1 (en) 1980-10-31
DK157360B (en) 1989-12-27
SE7809547L (en) 1979-03-14
YU216578A (en) 1982-08-31
DE2839894A1 (en) 1979-03-22
AR219127A1 (en) 1980-07-31
JPH0140761B2 (en) 1989-08-31
SE431440B (en) 1984-02-06
FI67494B (en) 1984-12-31
HU182557B (en) 1984-02-28
FI67494C (en) 1985-04-10
DE2839894C2 (en) 1988-07-21
FR2402623B1 (en) 1983-03-25
NO151999B (en) 1985-04-09
BR7805948A (en) 1979-05-02
IT7851044A0 (en) 1978-09-11
GB2004262A (en) 1979-03-28
IT1107755B (en) 1985-11-25

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