METHOD OF CLEANING LITHIUM-7 HYDROXIDE

method of cleaning lithium hydroxide. SUBSTANCE: lithium-7 hydroxide solution is subjected to continuous three-stage sorption cleaning from toxic chemical admixtures and evaporation till ratio of solid to liquid reaches level of 1:1 which is necessary for obtaining crystals of required fractional co...

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Bibliographic Details
Main Authors AFANAS'EV V.L, ZABELIN JU.V, LOPATKIN V.A, MUKHIN V.V, SHIPUNOV N.I, KUSTOV L.V
Format Patent
LanguageEnglish
Published 27.04.2001
Edition7
Subjects
CHEMISTRY
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM
INORGANIC CHEMISTRY
METALLURGY
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Summary:method of cleaning lithium hydroxide. SUBSTANCE: lithium-7 hydroxide solution is subjected to continuous three-stage sorption cleaning from toxic chemical admixtures and evaporation till ratio of solid to liquid reaches level of 1:1 which is necessary for obtaining crystals of required fractional composition. Sorption cleaning of lithium- 7 hydroxide solution is effected at linear rate of from 1.6 to 0.8 m/h at first stage, 0.8 to 0.4 m/h at second stage and 0.4 to 0.2 m/h at third stage. EFFECT: possibility of cleaning lithium-7 hydroxide from toxic chemical admixtures, mercury inclusive and using the solution as passivating additive for loops of heavy-water nuclear reactors. 10 cl, 7 tbl
Bibliography:Application Number: RU19990121831