JPS5742540A - Separation of zirconium tetrachloride from hafnium tetrachloride - Google Patents
Separation of zirconium tetrachloride from hafnium tetrachlorideInfo
- Publication number
- JPS5742540A JPS5742540A JP10530080A JP10530080A JPS5742540A JP S5742540 A JPS5742540 A JP S5742540A JP 10530080 A JP10530080 A JP 10530080A JP 10530080 A JP10530080 A JP 10530080A JP S5742540 A JPS5742540 A JP S5742540A
- Authority
- JP
- Japan
- Prior art keywords
- hfcl
- vapor
- zrcl
- mixture
- distillation
- 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.)
- Pending
Links
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
PURPOSE: To separate a mixture of ZrCl4 and HfCl4 into high-purity chlorides respectively by the less number of processes without using an expensive chemical agent, by treating the mixture through distillation including differential partical condensation under specific pressure and temperature.
CONSTITUTION: A mixture of ZrCl4 and HfCl4 is distilled under about ≥25atm. at ≥ about 450°C in the presence of a liquid phase. In the distillation, almost all prepared vapor is subjected to differential partial condensation by a cooler equipped at the top of a still and returned to the still. The HfCl4 contet in the remaining small part is raised to be in a range to meet the specification of a controlling rod for a nuclear reactor and it is recovered. The reason why the differential partial condensation method has especially improved effect is that since a vapor-liquid volume ratio under the conditions is about 15:1, much smaller than that of ordinary distillation conditions, and the viscosity of the liquid phase is considerably high, the material transfer caused only by vapor-liquid contact is insufficient. And, the reason is also considered that the ratio of vapor pressure of HfCl2 to ZrCl4 is very large, about 2.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10530080A JPS5742540A (en) | 1980-07-30 | 1980-07-30 | Separation of zirconium tetrachloride from hafnium tetrachloride |
CA000381713A CA1171664A (en) | 1980-07-30 | 1981-07-14 | Process for separation of zirconium- and hafnium tetrachlorides from a mixture comprising such chlorides and apparatus therefor |
IL6332581A IL63325A (en) | 1980-07-30 | 1981-07-15 | Process and apparatus for separation of zirconium-and hafnium tetrachlorides from a mixture comprising such chlorides |
EP81401226A EP0045270A1 (en) | 1980-07-30 | 1981-07-29 | Process for separation of zirconium- and hafnium tetrachlorides from a mixture comprising such chlorides and apparatus therefor |
BR8104889A BR8104889A (en) | 1980-07-30 | 1981-07-29 | PROCESS FOR SEPARATION OF ZIRCONIUM AND HAFNIUM TETRACLORIDE FROM A MIXTURE THAT UNDERSTANDS THESE CHLORIDES AND APPARATUS FOR SUCH |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10530080A JPS5742540A (en) | 1980-07-30 | 1980-07-30 | Separation of zirconium tetrachloride from hafnium tetrachloride |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5742540A true JPS5742540A (en) | 1982-03-10 |
Family
ID=14403834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10530080A Pending JPS5742540A (en) | 1980-07-30 | 1980-07-30 | Separation of zirconium tetrachloride from hafnium tetrachloride |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5742540A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2876369A1 (en) * | 2004-10-11 | 2006-04-14 | Cie Europ Du Zirconium Cezus S | PROCESS FOR SEPARATING ZIRCONIUM AND HAFNIUM |
-
1980
- 1980-07-30 JP JP10530080A patent/JPS5742540A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2876369A1 (en) * | 2004-10-11 | 2006-04-14 | Cie Europ Du Zirconium Cezus S | PROCESS FOR SEPARATING ZIRCONIUM AND HAFNIUM |
WO2006040458A2 (en) * | 2004-10-11 | 2006-04-20 | Compagnie Europeenne Du Zirconium-Cezus | Method for separating zirconium and hafnium |
WO2006040458A3 (en) * | 2004-10-11 | 2007-04-05 | Cezus Co Europ Zirconium | Method for separating zirconium and hafnium |
EA010421B1 (en) * | 2004-10-11 | 2008-08-29 | Компани Еропеен Дю Зиркониум - Сезюс | A method for separating zirconium and hafnium |
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