Short answers, pulled from the story.
Martin Klaproth analyzed a jargoon stone from the island of Ceylon in 1789 and identified a new element within it. He named this substance Zirkonerde derived from the Persian word zargun meaning gold-like or as gold.
William Justin Kroll replaced the expensive crystal bar process in 1945 with his cheaper reduction process using magnesium to reduce zirconium tetrachloride. The original crystal bar process emerged later in 1925 when Anton Eduard van Arkel and Jan Hendrik de Boer developed the first industrial method for producing metallic zirconium.
Australia and South Africa lead global production as of 2023 together accounting for approximately half of all zircon output worldwide. Most commercial zircon comes from silicate minerals found primarily in Brazil India Russia and the United States alongside smaller deposits elsewhere.
Hafnium impurities must be removed because hafnium has a neutron absorption cross-section six hundred times greater than zirconium itself. Several separation schemes handle this including liquid-liquid extraction exploiting slight solubility differences in methyl isobutyl ketone versus water accounting for roughly two-thirds of pure production.
Zirconium-bearing compounds support many biomedical applications including dental implants crowns knee replacements hip replacements middle-ear ossicular chain reconstruction and other restorative devices. Sodium zirconium cyclosilicate treats hyperkalemia by selectively trapping potassium ions throughout the gastrointestinal tract while aluminium zirconium glycine salts function as antiperspirants since the early 1960s.