Title:
METHOD OF RECOVERING RECLAIMED ALUMINUM MATERIAL FROM SUBSTANCES CONTAINING METALLIC ALUMINUM
Document Type and Number:
WIPO Patent Application WO/1996/018746
Kind Code:
A1
Abstract:
A method of recovering metallic aluminum with ease in a high yield at a low cost from metallic aluminum-containing wastes which are becoming more and more abundant in recent years, such as aluminum can, aluminized foil, aluminum scrap, aluminum cutting and other aluminum-containing (or bearing) substances. The method comprises treating a metallic aluminum-containing substance in a kiln in an atmosphere containing at most 10 vol.% of oxygen or comprising carbon dioxide in a temperature range of from 300 to 600 �C to carbonize the flammable components contained therein, cooling the substance thus treated, and separating the product of carbonization and iron components by sieving or magnetic separation.
Inventors:
TAKASHIMA MASARU (JP)
Application Number:
PCT/JP1995/000131
Publication Date:
June 20, 1996
Filing Date:
February 01, 1995
Export Citation:
Assignee:
AIKOH CO (JP)
TAKASHIMA MASARU (JP)
TAKASHIMA MASARU (JP)
International Classes:
C22B7/00; C22B21/00; (IPC1-7): C22B21/00
Foreign References:
| JPS60230942A | 1985-11-16 | |||
| JPH01287231A | 1989-11-17 | |||
| JP171784C |
Download PDF: