Title:
METHOD FOR INCREASING PURITY OF METAL
Document Type and Number:
Japanese Patent JP3878402
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an electrolytic refining method capable of efficiently manufacturing metal of high purity by effectively utilizing electrodes and electrolyte manufactured in a plurality of electrolytic refining steps, and recycling the flow of the electrolyte in the system.
SOLUTION: This method for increasing the purity of metal comprises a step of obtaining a primary precipitated metal by performing electrolysis of raw metal by the primary electrolysis, a step of obtaining the electrolyte of higher purity for secondary electrolysis by performing electrolysis with the primary precipitated metal obtained by the primary electrolytic step as an anode, and a step of performing secondary electrolysis with the primary precipitated metal as an anode by using the electrolyte of higher purity.
Inventors:
Yuichiro Shindo
Shunichiro Yamaguchi
Shunichiro Yamaguchi
Application Number:
JP2000286494A
Publication Date:
February 07, 2007
Filing Date:
September 21, 2000
Export Citation:
Assignee:
Nikko Metal Co., Ltd.
International Classes:
C25C7/06; C25C1/00; C25C7/02; (IPC1-7): C25C7/06; C25C1/00; C25C7/02
Domestic Patent References:
| JP7003486A | ||||
| JP2185990A |
Attorney, Agent or Firm:
Isamu Ogoshi
Yohei Kinoshita
Yohei Kinoshita