GB751855A - Improvements in ion-exchange processes - Google Patents

Improvements in ion-exchange processes

Info

Publication number
GB751855A
GB751855A GB941853A GB941853A GB751855A GB 751855 A GB751855 A GB 751855A GB 941853 A GB941853 A GB 941853A GB 941853 A GB941853 A GB 941853A GB 751855 A GB751855 A GB 751855A
Authority
GB
United Kingdom
Prior art keywords
compartment
exchange material
acid
base
diaphragm
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.)
Expired
Application number
GB941853A
Inventor
Thomas Victor Arden
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.)
Permutit Co Ltd
Original Assignee
Permutit Co Ltd
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 Permutit Co Ltd filed Critical Permutit Co Ltd
Priority to GB941853A priority Critical patent/GB751855A/en
Publication of GB751855A publication Critical patent/GB751855A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • 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
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/168—Use of other chemical agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

751,855. Electrodialytic decomposition of salt solutions. PERMUTIT CO., Ltd. March 29, 1954 [April 7, 1953], No. 9418/53. Class 41. [Also in Group I] Ion exchange material is regenerated by passage of a solution of an acid in the case of cation exchange material or a base in the case of anion exchange material. The effluent regenerant, which contains a salt together with some excess of acid or base is electrolysed in a cell comprising two or more compartments, separated from one another by one or more diaphragms of ion exchange material, to produce the acid and base of the salt. The acid and/or base is or are used for regenerating further ion exchange material. The process may be carried on in batch fashion or continuously. The Figure shows a bed of cation exchange material 2, which has taken up sodium ions, being regenerated with sulphuric acid. The effluent regenerant is placed in the cathode compartment 4 of a cell 6 in which the diaphragm 8 is of anion exchange material. The anode compartment 5 contains water. Electrolysis causes sulphate ions to pass through the anion exchange diaphragm 8 into compartment 4 to form sulphuric acid and free oxygen at the anode. In compartment 5 sodium hydroxide and free hydrogen are formed at the cathode. The diaphragm 8 may be made of cation exchange material instead of anion exchange material, in which case the effluent regenerant must be placed in the anode compartment. The use of a three compartment cell is described having an anion exchange diaphragm near the anode and a cation exchange diaphragm near the cathode and wherein the effluent regenerant is placed in the centre compartment, acid being formed in the anode compartment and base in the cathode compartment. Specification 751,856 is referred to.
GB941853A 1953-04-07 1953-04-07 Improvements in ion-exchange processes Expired GB751855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB941853A GB751855A (en) 1953-04-07 1953-04-07 Improvements in ion-exchange processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB941853A GB751855A (en) 1953-04-07 1953-04-07 Improvements in ion-exchange processes

Publications (1)

Publication Number Publication Date
GB751855A true GB751855A (en) 1956-07-04

Family

ID=9871590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB941853A Expired GB751855A (en) 1953-04-07 1953-04-07 Improvements in ion-exchange processes

Country Status (1)

Country Link
GB (1) GB751855A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063924A (en) * 1957-10-11 1962-11-13 Pour Le Traitement Et L Utilis Process for removing mineral constituents from an aqueous liquid
EP0249925A1 (en) * 1986-06-20 1987-12-23 The Graver Company Method for generating acid and base regenerants and use thereof to regenerate ion-exchange resins
BE1003943A3 (en) * 1990-09-28 1992-07-22 Solvay Method and installation for the production of aqueous alkaline metalhydroxide solutions
DE4312600A1 (en) * 1993-04-17 1994-10-20 Judo Wasseraufbereitung Small desalination plant based on ion exchangers with electrolytically producible regeneration agents and process for their operation
WO1995026808A1 (en) * 1991-05-07 1995-10-12 The Graver Company Ion exchange resin regenerant waste recovery and recycling via bipolar membranes

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063924A (en) * 1957-10-11 1962-11-13 Pour Le Traitement Et L Utilis Process for removing mineral constituents from an aqueous liquid
EP0249925A1 (en) * 1986-06-20 1987-12-23 The Graver Company Method for generating acid and base regenerants and use thereof to regenerate ion-exchange resins
BE1003943A3 (en) * 1990-09-28 1992-07-22 Solvay Method and installation for the production of aqueous alkaline metalhydroxide solutions
WO1995026808A1 (en) * 1991-05-07 1995-10-12 The Graver Company Ion exchange resin regenerant waste recovery and recycling via bipolar membranes
DE4312600A1 (en) * 1993-04-17 1994-10-20 Judo Wasseraufbereitung Small desalination plant based on ion exchangers with electrolytically producible regeneration agents and process for their operation
EP0621238A2 (en) * 1993-04-17 1994-10-26 Judo Wasseraufbereitung GmbH Small desolination apparatus based on ion exchangers with electrolytically produced regenerants and process for its operating
EP0621238A3 (en) * 1993-04-17 1995-02-01 Judo Wasseraufbereitung Small desolination apparatus based on ion exchangers with electrolytically produced regenerants and process for its operating.

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