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:
Jun. 14, 2005
Filed:
May. 16, 2002
Benny E. Raahauge, Copenhagen, DK;
Benny E. Raahauge, Copenhagen, DK;
FFE Minerals Corp., Bethlehem, PA (US);
Abstract
Disclosed is a process for the elimination of volatile, foul-smelling organic compounds which are liberated in a gas suspension calciner process utilized to manufacture alumina. The process comprises recirculating captured alumina dust on which undesirable volatile organic compounds are adsorbed to a location in the manufacturing process (1) at or upstream (based on the path of the conveying gases) from the gas suspension calciner and (2) which is operating at a temperature of about 700 ° C. or higher. The adsorbed organic compounds are stripped off the alumina dust and are subsequently directed by process air into the gas suspension calciner furnace which is operating above 1000 ° C. under oxidizing conditions. Under such conditions the organic compounds are oxidized to HO vapor and CO. It is a preferred feature that the volatilized organic compounds are adsorbed on the alumina dust in a baghouse.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile