Periodic Table · element
Zirconium
Zr · Z 40
- atomic number
- 40
- atomic mass
- 91.224
- notation
- Zr
- group
- 4: Titanium
- period
- 5
- state0c
- Solid
- state20c
- Solid
- occurrence
- Primordial
- density
- 6.52
- melting pt
- 1850
- boiling pt
- 4409
- discovered
- 1789
- abundance
- 165
- ore grade
- 5000
- ore minerals
- zircon in mineral sands, with ilmenite and rutile
- mined as
- By-product
extraction
Zircon is a co-product of titanium sands, separated electrostatically. Most goes into ceramics and refractories as-is; nuclear-grade metal comes via chlorination and the Kroll process, with the hafnium — chemically almost identical — stripped out first by solvent extraction.
categories
#Transition Metal#Metal
Referenced by
machine
mine
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