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Kroll process information


The Kroll process is a pyrometallurgical industrial process used to produce metallic titanium from titanium tetrachloride. The Kroll process replaced the Hunter process for almost all commercial production.[1]

  1. ^ Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN 0-12-352651-5.

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Kroll process

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The Kroll process is a pyrometallurgical industrial process used to produce metallic titanium from titanium tetrachloride. The Kroll process replaced the...

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William Justin Kroll

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for inventing the Kroll process in 1940, which is used commercially to extract metallic titanium from ore. In 1909, Wilhelm Kroll graduated from Luxembourg's...

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Industrial processes

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chamber process, contact process) Titanium – (Hunter process, Kroll process) Zirconium – (Hunter process, Kroll process, van Arkel–de Boer process) A list...

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Hunter process

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when it was replaced by the more economical Kroll process which was developed in the 1940s. In the Kroll process, TiCl4 is reduced by magnesium as opposed...

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Titanium

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The metal is extracted from its principal mineral ores by the Kroll and Hunter processes. The most common compound, titanium dioxide, is a popular photocatalyst...

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Magnesium

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production of iron and steel, and the production of titanium in the Kroll process. Magnesium is used in lightweight materials and alloys. For example...

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Kroll

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William Justin Kroll (1889–1973), Luxemburger metallurgist, inventor of the Kroll process Wolfgang Kroll (1906–1992), German physicist Alex Kroll (born 1937)...

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Reactivity series

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magnesium, or less commonly other alkali metals, hydrogen or calcium in the Kroll process Manganese Mn Mn2+ reacts with acids; very poor reaction with steam smelting...

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Betts electrolytic process

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pyrometallurgical methods are preferred, such as the Parkes process followed by the Betterton-Kroll process. The process is named for its inventor Anson Gardner Betts...

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Zirconium

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reduction of the zirconium(IV) chloride with magnesium metal in the Kroll process. The resulting metal is sintered until sufficiently ductile for metalworking...

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Titanium Sponge Plant

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one roof. The material is an alloy product which is produced through Kroll process which includes leaching or heated vacuum distillation to make the metal...

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Lead smelting

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example the Betterton-Kroll process and the Betts electrolytic process. The non-lead metals are usually sold to other metal processing plants. The refined...

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List of unsolved problems in chemistry

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labor- or energy-intensive technique for titanium refinement than the Kroll process? Does nitrogen admit metastable allotropes under standard conditions...

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Joachim Kroll

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Joachim Georg Kroll (17 April 1933 to 1 July 1991) was a German serial killer, child molester, necrophile and cannibal who murdered a minimum of eight...

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Zirconium dioxide

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basis for the purification of zirconium metal and is analogous to the Kroll process. Zirconium dioxide is one of the most studied ceramic materials. ZrO2...

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Lead

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gold retrieved. De-silvered lead is freed of bismuth by the Betterton–Kroll process, treating it with metallic calcium and magnesium. The resulting bismuth...

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Titanium powder

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shaping. The traditional technique of titanium production is via the Kroll process which involves chlorination of TiO2 ore in the presence of carbon and...

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The Instigators

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Instigators is scheduled to be released by Apple TV+ on August 9, 2024. Kroll, Justin (December 8, 2022). "Matt Damon And Casey Affleck Set To Star In...

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Hydrogen assisted magnesiothermic reduction

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production of titanium metal is the formation of oxide impurities. The Kroll process, which is widely used commercially, addresses this challenge by converting...

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Hafnium

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converted to the metal by reduction with magnesium or sodium, as in the Kroll process. HfCl 4 + 2 Mg → 1100 o C Hf + 2 MgCl 2 {\displaystyle {\ce {HfCl4 +...

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Osaka Titanium Technologies

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sponge after VSMPO-Avisma. It produces titanium products using the Kroll process, and also produces silicon products. In 2010, increased demand for titanium...

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Titanium tetrachloride

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magnesium metal. This procedure is known as the Kroll process: 2 Mg + TiCl4 → 2 MgCl2 + Ti In the Hunter process, liquid sodium is the reducing agent instead...

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Boron trichloride

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3 Cl2 → 2 BCl3 + 3 CO The carbothermic reaction is analogous to the Kroll process for the conversion of titanium dioxide to titanium tetrachloride. In...

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Alkaline earth metal

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production of iron and steel,[further explanation needed] and in the Kroll process for production of titanium. Calcium is used as a reducing agent in the...

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List of inventors

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knapsack parachute, drogue parachute William Justin Kroll (1889–1973), Luxemburg/U.S. – Kroll process Alfred Krupa (1915–1989), Yugoslavia – the modern...

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