Title:
【発明の名称】鉛鉱のような金属硫化物混合物中の金属の分離および回収方法
Document Type and Number:
Japanese Patent JPS63501023
Kind Code:
A
Abstract:
The mixture of sulfides is chemically attacked with an aqueous oxidizing solution of fluosilicic acid for dissolving the metals present. From said solution, the lead, and optionally the silver, is reprecipitated to the state of sulfates which are separated from the filtrate containing the other metals. It is then possible to recover separately the different metals by treatment on the one hand of the precipitate of sulfates and on the other hand of the filtrate, by conventional processes. The attack solutions may be recycled.
Inventors:
Nour, patrick
Application Number:
JP50520386A
Publication Date:
April 14, 1988
Filing Date:
September 26, 1986
Export Citation:
Assignee:
Extra Met
International Classes:
C22B3/00; C22B3/10; C22B11/00; C22B13/00; C22B15/00; C22B19/00; C22B19/20; C22B25/00; C25C1/00; C25C1/18; (IPC1-7): C22B3/00; C22B11/04; C22B13/04; C22B15/08; C22B19/22; C22B25/04
Attorney, Agent or Firm:
Akaoka Mio