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:
May. 23, 2000
Filed:
Apr. 03, 1997
John M Floyd, Upper Beaconsfield, AU;
Carl P Jeppe, Shoreham, AU;
Robert W Matusewicz, West Footscray, AU;
Kenneth R Robilliard, Upwey, AU;
Ausmelt Limited, Dandenong, AU;
Abstract
A process for treating carbon-containing material contaminated with toxic elements utilises smelting of the material in a top-submerged lancing reactor. The material has its carbon content present as elemental or free carbon. Smelting is conducted so as to form, or in the presence of, a fluid slag. In the course of smelting, free-oxygen-containing gas is injected into the slag by top-submerged injection, to combust the carbon content of the material. Volatilizable toxic elements are discharged in reactor off-gas, while non-volatilizable elements are substantially fully incorporated into the slag.