Title:
ターゲットからの金属回収方法およびターゲットの製造方法
Document Type and Number:
Japanese Patent JP4657371
Kind Code:
B1
Abstract:
A target consisting essentially of a CoCrPt-based metal or a CoCrPtRu-based metal, and one or more metal oxides selected from the group consisting of SiO2, Cr2O3, CoO, TiO2 and Ta2O5, is heated in an upper crucible of a two-level crucible that includes the upper crucible with a through hole formed in a bottom surface, and a lower crucible disposed below the through hole. The target is heated at a temperature of from 1400 to 1790° C. if the target does not contain both TiO2 and Ta2O5. The target is heated at a temperature of from 1400 to 1630° C. if the target contains TiO2 but does not contain Ta2O5. The target is heated at a temperature of from 1400 to 1460° C. if the target contains Ta2O5. The metal thereby melted is caused to flow into the lower crucible, so that the metal is separated from the metal oxide.
Inventors:
Toshiya Yamamoto
Takashi Miyashita
Kiyoshi Higuchi
Yasuyuki Goto
Takashi Miyashita
Kiyoshi Higuchi
Yasuyuki Goto
Application Number:
JP2010084634A
Publication Date:
March 23, 2011
Filing Date:
March 31, 2010
Export Citation:
Assignee:
Tanaka Kikinzoku Kogyo Co., Ltd.
International Classes:
B09B3/00; C22B7/00; B22F9/08; C22B9/02; C22B11/02; C22B23/02; C22B34/32; C23C14/34; F27B14/04; F27B14/06; F27B14/10; C22C19/07; C22C30/00
Domestic Patent References:
| JP2005023349A | ||||
| JP5171304A | ||||
| JP10310842A | ||||
| JP2002241865A | ||||
| JP10204553A | ||||
| JP2000355719A |
Attorney, Agent or Firm:
Keisuke Matsuyama
Satoshi Takaya
Tsuyoshi Makino
Takashi Fujita
Satoshi Takaya
Tsuyoshi Makino
Takashi Fujita