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Title:
金属精製方法及び装置、精製金属、鋳造品、金属製品及び電解コンデンサ
Document Type and Number:
Japanese Patent JP5479729
Kind Code:
B2
Abstract:

To provide a metal refining method and apparatus, etc., by which the refining efficiency can be improved and the obtained refined metal weight is increased by preventing the metal crystallized under state of high solidified speed from being exfoliated from a cooling body after growing to some extent.

In the method for refining the metal, crystallizing a high purity metal on the cooling body surface while rotating the cooling body 3 by dipping the cooling body 3 into molten metal 2 to be refined; the maximum rotating speed of the cooling body 3 at the front-half of the initial stage of the refining, is set at higher than the average rounding speed after the initial stage of the refining and the average rounding speed of the cooling body at the rear-half of the initial stage of the refining, is set at lower than the average rounding speed after the initial stage of the refining to perform the refining.

COPYRIGHT: (C)2009,JPO&INPIT


Inventors:
Yasuhisa Hagiwara
Katsuki Yoshida
Application Number:
JP2008332050A
Publication Date:
April 23, 2014
Filing Date:
December 26, 2008
Export Citation:
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Assignee:
SHOWA DENKO K.K.
International Classes:
C22B9/02; C22B21/06; C22C1/02; C22C21/00; H01G9/055
Domestic Patent References:
JP3039425A
JP4059935A
JP2008163419A
JP2004300571A
JP11124638A
JP6136470A
JP2002097528A
JP2000104128A
Attorney, Agent or Firm:
Yoshihito Shimizu
Hisayoshi Shimizu
Ken Takada