The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2011
Filed:
Mar. 26, 2008
Chris Chapman, Fairford, GB;
Hao Ly, Zurich, CH;
David Deegan, Bampton, GB;
Tetronics Limited, Swindon, Wiltshire, GB;
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.