5. Zirconium tetrachloride production
5.1 Carbochlorination of zirconium silicate
Zirconium tetrachloride is obtained by carbochlorination of zircon ZrSiO 4 .
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Old process
Initially, carbochlorination was carried out in a fixed bed. Pellets consisting of zircon, graphite powder and pitch were prepared. After coking in a furnace, these pellets were red-charged into a briquetted reactor. The temperature of 800 to 900°C was maintained thanks to the enthalpy of the reaction and the thermal energy of combustion following the addition of oxygen to the excess coal.
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New process
The carbochlorination technique soon evolved by using...
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Zirconium tetrachloride production
Ferric chloride production
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