Van Arkel–de Boer process
Process for the commercial production of pure titanium and zirconium / From Wikipedia, the free encyclopedia
The van Arkel–de Boer process, also known as the iodide process or crystal-bar process, was the first industrial process for the commercial production of pure ductile titanium, zirconium and some other metals. It was developed by Anton Eduard van Arkel and Jan Hendrik de Boer in 1925.[1] Now it is used in the production of small quantities of ultrapure titanium and zirconium. It primarily involves the formation of the metal iodides and their subsequent decomposition to yield pure metal.
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This process was superseded commercially by the Kroll process.