Title:
【発明の名称】硫化物精鉱からの亜鉛の回収
Document Type and Number:
Japanese Patent JPH10507232
Kind Code:
A
Abstract:
There is provided a novel class of additives, specifically coals, which are useful in zinc extraction processes involving one or more pressure leach stages carried out at temperatures above the melting point of sulphur. Such processes may include those incorporating a single stage pressure leach, a process involving two stage countercurrent or cocurrent pressure leaches or a multistage leach process for recovering zinc, lead and silver from zinc bearing sulphidic materials which also contain lead and silver.
Inventors:
Corinth J. Michael
Cofflac C. Donald
Cofflac C. Donald
Application Number:
JP51492596A
Publication Date:
July 14, 1998
Filing Date:
November 07, 1995
Export Citation:
Assignee:
Sherit International Consultants, Inc.
International Classes:
B03D1/00; C22B3/08; (IPC1-7): C22B19/00; C22B3/04
Attorney, Agent or Firm:
Nobuo Tabuchi