Published February 23, 1990
| Version v1
Patent
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Method for ion exchange purification of sodium iodide solution from heavy metals and potassium microimpurities
Description
A method of deep ion exchange purification of sodium iodide solution from heavy metals (iron, nickel, copper, lead) and potassium microimpurities is developed. The method includes multiple sorption of microimpurities on titanium phosphate with their subsequent desorption by sorbent processing with a solution with a solution of 3-6 N nitric acid, first, and then with a neutral solution of 2 % sodium thiosulfate. The given method permits to increase the purification degree of sodium iodide solution by 25-30 %. 2 tabs
Availability note (English)
MF available from INIS under the Report Number.Files
22041568.pdf
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Additional details
Additional titles
- Original title (Russian)
- Способ ионообменной очистки раствора иодида натрия от микропримесей тяжелых металлов и калия
Publishing Information
- Imprint Pagination
- 4 p.
- IPC:
- Int. Cl. B01J 39/02; 49/00.
- IPC
- Int. Cl. B01J 39/02; 49/00.
- Patent number
- SU patent document 1544477/A1/
INIS
- Country of Publication
- USSR
- Country of Input or Organization
- USSR
- INIS RN
- 22041568
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- AQUEOUS SOLUTIONS; COPPER COMPOUNDS; DESORPTION; IMPURITIES; INORGANIC ION EXCHANGERS; ION EXCHANGE; IRON COMPOUNDS; LEAD COMPOUNDS; NICKEL COMPOUNDS; POTASSIUM COMPOUNDS; PURIFICATION; SODIUM IODIDES; TITANIUM PHOSPHATES
- Descriptors DEC
- ALKALI METAL COMPOUNDS; DISPERSIONS; HALIDES; HALOGEN COMPOUNDS; HOMOGENEOUS MIXTURES; IODIDES; IODINE COMPOUNDS; ION EXCHANGE MATERIALS; MATERIALS; MIXTURES; OXYGEN COMPOUNDS; PHOSPHATES; PHOSPHORUS COMPOUNDS; SODIUM COMPOUNDS; SOLUTIONS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Secondary number(s)
- SU patent application 4341220/31-26.