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:
Oct. 02, 1984
Filed:
Apr. 20, 1982
Applicant:
Inventors:
William H Andrews, Mt. Waverley, AU;
David J Milne, North Balwyn, AU;
Ronald W Moyle, Templestowe, AU;
James P Peters, Surrey Hills, AU;
Assignee:
Comalco Aluminum Limited, Melbourne, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F / ;
U.S. Cl.
CPC ...
423122 ; 423111 ; 423132 ; 423150 ;
Abstract
A leaching process employing acidic chloride solutions, whereby the iron content of aluminous materials such as lower grade iron-containing bauxite ores is reduced, enabling the obtention of valuable products such as metallurgical grade alumina and refractory grade bauxite, previously obtainable only from higher grade low-iron aluminous materials.
Andrews, William. (1984). Treatment of aluminous materials (U.S. Patent No. 4474736). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4474736
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile