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GB781726A - Improvements in or relating to process for removal of cations from aqueous solution - Google Patents

Improvements in or relating to process for removal of cations from aqueous solution

Info

Publication number
GB781726A
GB781726A GB1813354A GB1813354A GB781726A GB 781726 A GB781726 A GB 781726A GB 1813354 A GB1813354 A GB 1813354A GB 1813354 A GB1813354 A GB 1813354A GB 781726 A GB781726 A GB 781726A
Authority
GB
United Kingdom
Prior art keywords
resin
strontium
caesium
solution
anion exchange
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
GB1813354A
Inventor
Eugen Glueckauf
Peredur John Pennant Roberts
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB1813354A priority Critical patent/GB781726A/en
Publication of GB781726A publication Critical patent/GB781726A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J41/00Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Cations are removed from aqueous solution by bringing the solution into contact with a solid anion exchange substance, insoluble in water and having at the exchange positions anions which will form insoluble compounds with the cations. A precipitate of the insoluble compound forms on the surface of the exchange substance and may be removed by washing with aqueous acid or a complexing agent. In examples: (1) an aqueous solution containing caesium, strontium, iron, uranium, cerium, and copper in the form of nitrates is passed through an anion exchange resin in the hydroxide form; the effluent containing only caesium and strontium is passed through an anion exchange resin in the carbonate form to precipitate strontium; caesium is recovered from the remaining solution by precipitation with phosphotungstic acid; (2) anion exchange resin in the hydroxide form is contacted with solutions containing silver, copper, iron, cobalt, lead, or lanthanum; resin in the carbonate form is used to treat solutions of strontium, barium, and calcium salts; resin in the chromate form is used to treat solutions containing silver; and resin in the sulphide form is used to treat solutions containing mercury or cobalt ions; (3) a solution of uranium fission products is treated with resin in the hydroxide form to remove yttrium, lanthanum, rare earths, zirconium, cerium, ruthenium, iron, chromium, nickel, uranium, and aluminium, leaving a solution containing caesium, rubidium, strontium, and sodium.ALSO:Cations are removed from aqueous solution by bringing the solution into contact with a solid anion exchange substance, insoluble in water and having at the exchange positions anions which will form insoluble compounds with the cations. A precipitate of the insoluble compound forms on the surface of the exchange substance and may be removed by washing with aqueous acid or a complexing agent. In examples (1) an aqueous solution containing caesium, strontium, iron, uranium, cerium, and copper in the form of nitrates is passed through an anion exchange resin in the hydroxide form; the effuent containing only caesium and strontium is passed through an exchange resin in the carbonate form to precipitate strontium; caesium is recovered from the remaining solution by precipitation with phosphotungstic acid; (2) anion exchange resin in the hydroxide form is contacted with solutions containing silver, copper, iron, cobalt, lead, or lanthanum; resin in the carbonate form is used to treat solutions of strontium, barium, and calcium salts; resin in the chromate form is used to treat solutions containing silver; and resin in the sulphide form is used to treat solutions containing mercury or cobalt; (3) a solution of uranium fission products is treated with resin in the hydroxide form to remove yttrium, lanthanum, rare earths, zirconium, cerium, ruthenium, iron, chromium, nickel, uranium, and aluminium, leaving a solution containing caesium, rubidium, strontium, and sodium.
GB1813354A 1954-06-21 1954-06-21 Improvements in or relating to process for removal of cations from aqueous solution Expired GB781726A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1813354A GB781726A (en) 1954-06-21 1954-06-21 Improvements in or relating to process for removal of cations from aqueous solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1813354A GB781726A (en) 1954-06-21 1954-06-21 Improvements in or relating to process for removal of cations from aqueous solution

Publications (1)

Publication Number Publication Date
GB781726A true GB781726A (en) 1957-08-21

Family

ID=10107210

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1813354A Expired GB781726A (en) 1954-06-21 1954-06-21 Improvements in or relating to process for removal of cations from aqueous solution

Country Status (1)

Country Link
GB (1) GB781726A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094239B (en) * 1958-01-23 1960-12-08 Bayer Ag Process for the simultaneous removal of cations and anions that form sparingly soluble silver compounds from liquids
DE1095259B (en) * 1957-09-21 1960-12-22 Bayer Ag Process for the desalination of solutions which contain anions which result in compounds which are difficult to dissolve with silver ions
US3099529A (en) * 1960-01-29 1963-07-30 Dow Chemical Co Separation of nitric acid from its salts
DE1161855B (en) * 1960-04-14 1964-01-30 Wolfen Filmfab Veb Process for separating acids from salts and / or non-electrolytes
GB2167739A (en) * 1984-11-30 1986-06-04 Atomic Energy Authority Uk Preparation of dispersible cerium compounds

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1095259B (en) * 1957-09-21 1960-12-22 Bayer Ag Process for the desalination of solutions which contain anions which result in compounds which are difficult to dissolve with silver ions
DE1094239B (en) * 1958-01-23 1960-12-08 Bayer Ag Process for the simultaneous removal of cations and anions that form sparingly soluble silver compounds from liquids
US3099529A (en) * 1960-01-29 1963-07-30 Dow Chemical Co Separation of nitric acid from its salts
DE1161855B (en) * 1960-04-14 1964-01-30 Wolfen Filmfab Veb Process for separating acids from salts and / or non-electrolytes
GB2167739A (en) * 1984-11-30 1986-06-04 Atomic Energy Authority Uk Preparation of dispersible cerium compounds

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