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:
Jul. 15, 1997
Filed:
May. 02, 1995
John Vincent Keogh, Camberwell, AU;
Robin John Batterham, Brighton, AU;
Barry Stuart Andrews, Glen Iris, AU;
CRA Services Limited, Melbourne, AU;
Abstract
A process and a smelt reduction vessel (1) for producing metals and metal alloys, in particular iron and iron alloys, from metal oxides and ores in a smelt reduction vessel. The process and the vessel are characterized in that loss of liquid and solids with waste gases (11) from the vessel are minimized by causing the waste gases, oxidizing gases (5) and entrained liquid and solids in the space in the vessel that is above the molten metal to rotate about a vertical axis of the vessel thereby forcing liquid and solids outwardly toward the wall of the vessel. This rotational motion may be caused by injecting some or all the oxidizing gases through tuyeres (4) positioned above the bath surface obliquely to a vertical plane through a vertical axis of the vessel. The vessel may have a substantially rotationally symmetrical shape at least in the space above the molten metal (2A).