Method for treating spent pot liner

Details Method for treating spent pot liner Method for treating spent pot liner

2008-03-26

2011-11-22

Bos, Steven (Department: 1736)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

C075S010460, C075S010210, C588S311000, C588S410000

Reexamination Certificate

active

08062616

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.

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International Search Report, PCT/GB2008/001037, dated Sep. 17, 2008, 3 pages.
Written Opinion, PCT/GB2008/001037, dated Sep. 17, 2008, 6 pages.

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