Title:
【発明の名称】銅電解スライムよりの銀の濃縮法
Document Type and Number:
Japanese Patent JPS6059975
Kind Code:
B2
Abstract:
A method of concentrating silver from anode slime which comprises reacting an intermediate product obtained by treatment of the slime, the intermediate product containing lead in sulfate form and silver in chloride form, with an aqueous solution of an alkali hydroxide or carbonate. The obtained reaction product is then subjected to solid-liquid separation, and the resulting residue is reacted with a nitric acid solution so that the lead therein may be separated into a filtrate, while the silver will remain in the residue.
Inventors:
IIO TOSHIMASA
OOKUBO TOYOKAZU
OOKUBO TOYOKAZU
Application Number:
JP9621581A
Publication Date:
December 27, 1985
Filing Date:
June 22, 1981
Export Citation:
Assignee:
SUMITOMO METAL MINING CO
International Classes:
C22B11/00; C01G5/00; C22B7/00; C22B13/00; (IPC1-7): C22B11/04; C22B7/00; C22B13/04
Attorney, Agent or Firm:
Nakamura Katsunari