C - Chemistry – Metallurgy – 01 – G
Patent
C - Chemistry, Metallurgy
01
G
23/412
C01G 9/00 (2006.01) C22B 19/32 (2006.01)
Patent
CA 1250411
SYSTEM FOR DISSOLUTION-PURIFICATION OF Zn-CONTAINING MATERIALS ABSTRACT OF THE DISCLOSURE A system for dissolution-purification of Zn-containing materials which comprises a dissolving means for dissolving the Zn-containing materials and an ion-exchanging means for separating heavy metal ions included in the solution resulting from the dissolving means. In these means, the liquid or slurry to be treated is subjected to the dissolution and ion-exchanging operation countercurrently and the treatment residue including impurities is separated from the liquid or slurry to be treated so as not to contaminate the liquid or slurry with impurities and to improve the solubility.
498628
Hashimoto Takao
Kasai Tatsushi
Niikura Tatsuo
Sato Masanori
Yamashita Akiya
Macrae & Co.
Sumitomo Metal Industries Ltd.
Tsukishima Kikai Co. Ltd.
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