Karl-Hermann Geib

Karl-Hermann Geib (12 March 1908 – 21 July 1949) was a German physical chemist who, in 1943, developed the "dual temperature exchange sulphide process" (known as the Girdler sulfide process) which is regarded as the "most cost-effective process for producing heavy water". A parallel development of this process was achieved by Jerome S. Spevack at Columbia University and became the basis of post-World War II production of heavy water in the United States at the only remaining facilities located at Wabash River Ordnance Works, near Dana and Newport, Indiana, and the Savannah River Site.