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. 01, 1984
Filed:
Feb. 03, 1983
Masao Fujishige, Yatabemachi, JP;
Masayuki Dokiya, Yatabemachi, JP;
Tetsuya Kameyama, Yatabemachi, JP;
Harumi Yokokawa, Yatabemachi, JP;
Seiichi Ujiie, Yatabemachi, JP;
Kenzo Fukuda, Yatabemachi, JP;
Akihiro Motoe, Yatabemachi, JP;
Agency of Industrial Science and Technology, Tokyo, JP;
Abstract
This invention provides a method of smelting aluminum by using a blast furnace. An oxygen gas is introduced into a carbon material packed in a reactor, to burn the same to form a plurality of raceways and a high-temperature reduction region among the raceways. A mixture containing an alumina-containing starting material and a carbon material is then supplied selectively into the high-temperature reduction region while substantially preventing the mixture from contacting the raceways, to reduce the alumina to aluminum.