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Title:
METAL RECOVERY METHOD
Document Type and Number:
Japanese Patent JP2014196560
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a metal recovery method which reduces the time for metal recovery and improves the quality of a recovered metal.SOLUTION: A metal recovery method is for recovering a metal X from a raw material containing the metal X and has a metal X recovery step of recovering the metal X by forming a material containing the oxide of the metal X from the molten metal of the raw material containing the metal X and separating the material containing the oxide of the metal X, and the metal X recovery step includes a metal Y oxide containing slag charging step of charging the slag which is produced in the step of recovering the metal from the molten metal of the raw material and contains the oxide of a metal Y into the molten metal of the raw material containing the metal X. The metal X used is such that, under the temperature condition for forming the oxide of the metal X, the standard free energy of oxidation of the metal X is smaller than the standard free energy of oxidation of the metal Y.

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Inventors:
WAKAYANAGI SHUGO
TAMAUCHI HIROMI
Application Number:
JP2014044315A
Publication Date:
October 16, 2014
Filing Date:
March 06, 2014
Export Citation:
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Assignee:
DOWA METALS & MINING CO LTD
International Classes:
C22B5/02; C22B7/00; C22B9/00; C22B13/02; C22B15/00; C22B25/02; C22B30/02; C22B30/04
Domestic Patent References:
JPS63203727A1988-08-23
JP000023742C
JPH05271819A1993-10-19
JP327002559B
JP326003715B
JPS60187635A1985-09-25
JP2009510265A2009-03-12
Foreign References:
US4571260A1986-02-18
US20080250900A12008-10-16
Other References:
金属化学入門シリーズ第３巻　金属精錬工学, vol. 第５刷, JPN6017044658, 1 September 2011 (2011-09-01), pages 175 - 188
平川整四郎: "竹原精煉所における鉛精錬について", 日本鉱業会誌, vol. Vol.97, JPN6017044656, 1981, pages 732 - 736
Attorney, Agent or Firm:
Ani store Setsuo
Hitoshi Seino
Tomohiro Okuyama
Kazumasa Hashimura



 
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