Title:
レアメタル含有ガラスからのレアメタルの回収方法
Document Type and Number:
Japanese Patent JP6622627
Kind Code:
B2
Abstract:
A method for collecting minor metals from minor metal-containing glass, characterized in that the method comprises heating the minor metal-containing glass to a temperature of 900-1100°C and thereby melting the minor metal-containing glass, in a closed system, in the presence of 30-500 parts by mass of a glass fluxing agent per 100 parts by mass of silicon dioxide contained in the minor metal-containing glass and 30-200 parts by mass of a heavy-metal oxide per 100 parts by mass of silicon dioxide contained in the minor metal-containing glass, cooling the resultant melt of the minor metal-containing glass to a temperature of 600-800°C while putting carbon monoxide gas into contact with the melt, and keeping the melt at said temperature so that minor metal-containing deposits settle out, and collecting the minor metal-containing deposits.
Inventors:
Takashi Okada
Apocrypha
Shin Yonezawa
Gold tiger
Apocrypha
Shin Yonezawa
Gold tiger
Application Number:
JP2016039520A
Publication Date:
December 18, 2019
Filing Date:
March 02, 2016
Export Citation:
Assignee:
National University Corporation Fukui University
International Classes:
C22B5/12; C22B3/04; C22B11/00; C22B11/02; C22B26/10; C22B30/06; C22B34/14; C22B61/00
Domestic Patent References:
| JP57205321A | ||||
| JP2014133931A |
Attorney, Agent or Firm:
Yoshihiro Akamatsu