Process for producing high purity zirconium and hafnium
An improved process is described for producing zirconium or hafnium. The process is of the type wherein a tetrachloride of zirconium or hafnium is reduced by magnesium and the resulting metal is subjected to a distillation treatment. The improvement comprises: introducing magnesium chloride into a combination reduction-distillation vessel. An inner liner with at least one bottom drain opening with the drain opening providing fluid communication between the vessel and the liner. The magnesium chloride is added in a quantity to fill the vessel and the inner liner to a level above the liner bottom drain opening, whereby the magnesium chloride provides a seal which prevents magnesium in the inner liner from flowing out of the inner liner.
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA
- Patent Number(s):
- US 4668287
- OSTI ID:
- 6363120
- Resource Relation:
- Patent File Date: Filed date 26 Sep 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HAFNIUM
CHEMICAL PREPARATION
ZIRCONIUM
ALUMINIUM CHLORIDES
CHEMICAL REACTORS
DISTILLATION
DISTILLATION EQUIPMENT
DRAINAGE
HAFNIUM CHLORIDES
IMPURITIES
LINERS
LITHIUM CHLORIDES
MAGNESIUM CHLORIDES
MOLTEN SALTS
POTASSIUM CHLORIDES
SODIUM CHLORIDES
VACUUM SYSTEMS
ZIRCONIUM CHLORIDES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
ELEMENTS
EQUIPMENT
HAFNIUM COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LITHIUM COMPOUNDS
LITHIUM HALIDES
MAGNESIUM COMPOUNDS
METALS
POTASSIUM COMPOUNDS
REFRACTORY METAL COMPOUNDS
SALTS
SEPARATION PROCESSES
SODIUM COMPOUNDS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
ZIRCONIUM COMPOUNDS
360101* - Metals & Alloys- Preparation & Fabrication