GB717277A - Improvements in methods of separating phosphate ions from iron ions - Google Patents

Improvements in methods of separating phosphate ions from iron ions

Info

Publication number
GB717277A
GB717277A GB13827/52A GB1382752A GB717277A GB 717277 A GB717277 A GB 717277A GB 13827/52 A GB13827/52 A GB 13827/52A GB 1382752 A GB1382752 A GB 1382752A GB 717277 A GB717277 A GB 717277A
Authority
GB
United Kingdom
Prior art keywords
ions
iron
precipitation
free
solution
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
GB13827/52A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB717277A publication Critical patent/GB717277A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration

Landscapes

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

Abstract

An aqueous solution of phosphate ions free from iron ions is prepared from a solution containing phosphate ions and iron ions by the following steps: precipitation of iron hydroxide in alkaline solution; precipitation of phosphate ions in the filtrate free from halogen ions in an acid solution by adding bismuth salts; separating the precipitated bismuth phosphate; dissolving this precipitate in aqueous hydrogen halogen acid; precipitation of bismuth ions either as the sulphide by the addition of hydrogen sulphide or as bismuthyl salt by hydrolysis, separation of the precipitate and, if necessary, evaporation of the filtrate to free the phosphoric acid solution from unwanted volatile acids. The process is particularly applicable to the production of a radioactive P32 preparation from phosphorus iron which has been bombarded by deuterons. This iron is decomposed, for example by an alkaline oxidation mixture of solid sodium hydroxide and sodium nitrate, whereafter it is lixiviated and filtered thereby removing the iron as hydroxide together with radioactive cobalt and manganese.
GB13827/52A 1951-06-05 1952-05-30 Improvements in methods of separating phosphate ions from iron ions Expired GB717277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL717277X 1951-06-05

Publications (1)

Publication Number Publication Date
GB717277A true GB717277A (en) 1954-10-27

Family

ID=19814982

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13827/52A Expired GB717277A (en) 1951-06-05 1952-05-30 Improvements in methods of separating phosphate ions from iron ions

Country Status (1)

Country Link
GB (1) GB717277A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014135404A1 (en) 2013-03-05 2014-09-12 Commissariat A L'energie Atomique Et Aux Energies Alternatives Method for tracking a target in an image sequence, taking the dynamics of the target into consideration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014135404A1 (en) 2013-03-05 2014-09-12 Commissariat A L'energie Atomique Et Aux Energies Alternatives Method for tracking a target in an image sequence, taking the dynamics of the target into consideration

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