Title:
REMELTING TREATMENT FOR METAL WASTE
Document Type and Number:
Japanese Patent JPS5558341
Kind Code:
A
Abstract:
Method of taking care of the contents of valuable metals in grindings and other waste products of superalloys. The material is led into a metallic melt, preferably by injecting it by means of a carrier gas. The charge is heated up in the inductive way. The material contains aluminium and/or tantalum, or can these elements be added separately to the charge, thus preventing an oxidation of such valuable metals as vanadium, tantalum and niobium and obtaining a high yield of these elements. After the remelting, aluminium and/or titanium can be selectively oxidized by injecting into the charge oxygen and/or water vapor, a slag having a certain oxygen potential or a metal oxide where the metal has a lower affinity to oxygen as compared with aluminium and/or titanium.
Inventors:
OUE JII TEII RARUSON
RUNE ETSUCHI RINDOSUTOROOMU
BO ERU ERU YONSON
RUNE ETSUCHI RINDOSUTOROOMU
BO ERU ERU YONSON
Application Number:
JP13650979A
Publication Date:
May 01, 1980
Filing Date:
October 24, 1979
Export Citation:
Assignee:
UDDEHOLMS AB
International Classes:
C22B7/00; C22B9/16; C22B34/22; C22B34/20; (IPC1-7): C22B7/00; C22B34/20; C22B34/30