William Justin Kroll

William Justin Kroll
William Justin Kroll
Born	24 November 1889; Esch-sur-Alzette, Luxembourg
Died	30 March 1973 (aged 83); Brussels, Belgium
Known for	Kroll process; Betterton–Kroll process
Awards	Francis J. Clamer Medal (1954); Albert Sauveur Achievement Award (1955); Perkin Medal (1958); Castner Medal (1960); National Inventors Hall of Fame (2000)

See also German classic philologist, Wilhelm Kroll (philologist) (1869–1939).

William Justin Kroll (born Guillaume Justin Kroll; November 24, 1889 – March 30, 1973) was a Luxembourgish metallurgist. He is best known for inventing the Kroll process in 1940, which is used commercially to extract metallic titanium from ore.^[1]

^ Kroll, W.J. (1955). "How commercial titanium and zirconium were born". Journal of the Franklin Institute. 260 (3): 169. doi:10.1016/0016-0032(55)90727-4.

[kroll55-1] Kroll, W.J. (1955). "How commercial titanium and zirconium were born". Journal of the Franklin Institute. 260 (3): 169. doi:10.1016/0016-0032(55)90727-4.

[1]

William Justin Kroll
Born	(1889-11-24)24 November 1889 Esch-sur-Alzette, Luxembourg
Died	30 March 1973(1973-03-30) (aged 83) Brussels, Belgium
Known for	Kroll process Betterton–Kroll process
Awards	Francis J. Clamer Medal (1954) Albert Sauveur Achievement Award (1955) Perkin Medal (1958) Castner Medal (1960) National Inventors Hall of Fame (2000)