An analysis of the carboxy reaction shows that the reaction rate is controlled by the chemical reactivity of the carbon and in-pore diffusion. An analysis of the airburn reaction shows that the rate at high temperatures is controlled by boundary layer diffusion and at low temperatures by boundary layer diffusion and in-pore diffusion. For the carboxy reaction the analysis enables benefits from optimising green mix formulation, final heat treatment temperature, etc., to be assessed. The airburn reaction is much less sensitive to carbon structure and reactivity. The analysis adapted to model the effect of cover is able to predict the reduction in the airburn rate with increasing depth of cover.
|Title of host publication||Essential Readings in Light Metals|
|Subtitle of host publication||Techonolgy for Aluminum Production|
|Editors||Alan Tomsett, John Johnson|
|Place of Publication||Hoboken, U. S. A.|
|Publication status||Published - 1 Mar 2013|
Bird, N., McEnaney, B., & Sadler, B. A. (2013). Some practical consequences of analyses of the carboxy and airburn reactions of anode carbons. In A. Tomsett, & J. Johnson (Eds.), Essential Readings in Light Metals: Techonolgy for Aluminum Production (Vol. 4, pp. 589-593). Hoboken, U. S. A.: Wiley. https://doi.org/10.1002/9781118647745.ch78