Title:
【発明の名称】揮発性金属の回収方法
Document Type and Number:
Japanese Patent JPS6050852
Kind Code:
B2
Abstract:
A method of reducing and recovering volatile metal from metal oxides comprising the steps of injecting metal oxide-containing material into a shaft reactor, simultaneously injecting reducing agent into said reactor, continuously maintaining said reactor substantially filled with coke, supplying thermal energy to the reactor, preferably by means of a plasma burner, such that at least some of the metal oxides are reduced to metal and melted or volatilized depending upon whether the metal is volatile. The melted metal is removed from the bottom of the reactor while the volatilized metal is permitted to flow upwardly through the shaft reactor in the form of metal vapor together with a gas flow. The coke in the shaft reactor through which the volatilized metal passes is maintained at a temperature in excess of 1000 DEG C., thus screening the upper portion of the shaft reactor and the reactor top by means of the coke so as to prevent condensation of the volatilized metal.
Inventors:
SUBEN SANTEN
Application Number:
JP17020080A
Publication Date:
November 11, 1985
Filing Date:
December 02, 1980
Export Citation:
Assignee:
SKF STEEL ENG AB
International Classes:
C22B13/02; C22B4/00; C22B5/02; C22B5/10; C22B5/12; C22B5/16; C22B7/02; C22B9/20; C22B9/22; C22B19/04; C22B26/10; (IPC1-7): C22B5/16
Attorney, Agent or Firm:
Asamura Akira