Method for treating spent pot liner
AssigneeTetronics Limited
InventorsChris Chapman, Hao Ly, David Deegan
Life of this patent
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Abstract
The present invention relates to a method for treating spent pot liner material (SPL) containing carbon and/or an inorganic material, the method comprising: providing a plasma furnace having first and second electrodes for generating plasma and a crucible having a non-electrically conductive inner surface, heating the SPL material in the crucible in the presence of a flux material and an oxidant by passing an arc between the first and second electrodes via the SPL material to form a molten slag material and convert at least some of the carbon in the SPL material to CO and/or CO2 and/or incorporate at least some of the inorganic material into the molten slag material.
Claims13
A method for treating spent pot liner material (SPL) containing carbon and/or an inorganic material, the method comprising:
- providing a plasma furnace having first and second electrodes for generating plasma and a crucible having a non-electrically conductive inner surface,
- heating the SPL material in the crucible in the presence of a flux material and an oxidant by passing an arc between the first and second electrodes via the SPL material to form a molten slag material and convert at least some of the carbon in the SPL material to CO and/or CO2 and/or incorporate at least some of the inorganic material into the molten slag material.
Dependencies are inferred from the claim text.