GB1428207A - Process for the demineralisation of water by ion exchange - Google Patents

Process for the demineralisation of water by ion exchange

Info

Publication number
GB1428207A
GB1428207A GB2575173A GB2575173A GB1428207A GB 1428207 A GB1428207 A GB 1428207A GB 2575173 A GB2575173 A GB 2575173A GB 2575173 A GB2575173 A GB 2575173A GB 1428207 A GB1428207 A GB 1428207A
Authority
GB
United Kingdom
Prior art keywords
temperature
adsorption
water
ion exchange
weak base
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
GB2575173A
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.)
Commonwealth Scientific and Industrial Research Organization CSIRO
Orica Ltd
Original Assignee
Commonwealth Scientific and Industrial Research Organization CSIRO
ICI Australia 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 Commonwealth Scientific and Industrial Research Organization CSIRO, ICI Australia Ltd filed Critical Commonwealth Scientific and Industrial Research Organization CSIRO
Publication of GB1428207A publication Critical patent/GB1428207A/en
Expired 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
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • B01J49/40—Thermal regeneration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

1428207 Demineralization of water by ion exchange ICI AUSTRALIA Ltd and COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION 30 May 1973 [30 May 1972] 25751/73 Heading C1C An improvement in the known process for demineralizing water containing a mixture of mono and divalent cations by a bed of ion exchange resins containing mixed weak acid and weak base groups consists of the adsorption temperature being at ambient or supply temperature and the temperature of elution being above 95‹ C. and below the temperature at which the resin either decomposes or deforms. The bed is regenerated by eluting it with water or a saline solution at a temperature exceeding that employed during adsorption; the said weak acid having a titration curve at the temperature of the adsorption stage such that some portion of it falls within the area defined by the titration curves of the weak base at the temperatures of the adsorption and elution stages respectively and said weak base having a titration curve with an almost steady pH value over a major portion of the titration curve, which curve is displaced to a more acid position by elevation of the temperature.
GB2575173A 1972-05-30 1973-05-30 Process for the demineralisation of water by ion exchange Expired GB1428207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPA914972 1972-05-30

Publications (1)

Publication Number Publication Date
GB1428207A true GB1428207A (en) 1976-03-17

Family

ID=3765085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2575173A Expired GB1428207A (en) 1972-05-30 1973-05-30 Process for the demineralisation of water by ion exchange

Country Status (2)

Country Link
AU (1) AU472508B2 (en)
GB (1) GB1428207A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2368296A1 (en) * 1976-10-19 1978-05-19 Rohm & Haas IMPROVEMENTS IN METHODS AND DEVICES, FOR ION EXCHANGE, USING THERMALLY REGENERABLE RESINS
FR2392938A1 (en) * 1977-05-31 1978-12-29 Rohm & Haas PROCESS FOR REMOVING DISSOLVED SALTS FROM AQUEOUS SOLUTIONS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2368296A1 (en) * 1976-10-19 1978-05-19 Rohm & Haas IMPROVEMENTS IN METHODS AND DEVICES, FOR ION EXCHANGE, USING THERMALLY REGENERABLE RESINS
FR2392938A1 (en) * 1977-05-31 1978-12-29 Rohm & Haas PROCESS FOR REMOVING DISSOLVED SALTS FROM AQUEOUS SOLUTIONS

Also Published As

Publication number Publication date
AU472508B2 (en) 1976-05-27
AU5555873A (en) 1974-11-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee