发明名称 |
METHOD OF CLEANING LITHIUM-7 HYDROXIDE |
摘要 |
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
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申请公布号 |
RU2165886(C1) |
申请公布日期 |
2001.04.27 |
申请号 |
RU19990121831 |
申请日期 |
1999.10.19 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "NOVOSIBIRSKIJ Z;AVOD KHIMKONTSENTRATOV |
发明人 |
AFANAS'EV V.L.;ZABELIN JU.V.;KUSTOV L.V.;LOPATKIN V.A.;MUKHIN V.V.;SHIPUNOV N.I. |
分类号 |
C01D15/02;(IPC1-7):C01D15/02 |
主分类号 |
C01D15/02 |
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