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Title:
METHOD FOR COLLECTING MINOR METALS FROM MINOR METAL-CONTAINING GLASS
Document Type and Number:
WIPO Patent Application WO/2017/150659
Kind Code:
A1
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:
OKADA Takashi (3-9-1 Bunkyo Fukui-sh, Fukui 07, 〒9108507, JP)
XU Zhanglian (3-9-1 Bunkyo Fukui-sh, Fukui 07, 〒9108507, JP)
YONEZAWA Susumu (3-9-1 Bunkyo Fukui-sh, Fukui 07, 〒9108507, JP)
KIM JaeHo (3-9-1 Bunkyo Fukui-sh, Fukui 07, 〒9108507, JP)
Application Number:
JP2017/008259
Publication Date:
September 08, 2017
Filing Date:
March 02, 2017
Export Citation:
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Assignee:
UNIVERSITY OF FUKUI (3-9-1 Bunkyo, Fukui-shi Fukui, 07, 〒9108507, JP)
International Classes:
C22B5/12; C22B3/04; C22B11/00; C22B11/02; C22B26/10; C22B30/06; C22B34/14; C22B61/00
Attorney, Agent or Firm:
AKAMATSU Yoshihiro (12-15 Nishinakajima 3-chome, Yodogawa-ku, Osaka-sh, Osaka 11, 〒5320011, JP)
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