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Title:
METHOD FOR DISSOLVING A NICKEL- AND COBALT-CONTAINING METALLISED MATERIAL
Document Type and Number:
WIPO Patent Application WO/2000/053819
Kind Code:
A1
Abstract:
The present invention pertains to the field of hydrometallurgy and essentially relates to methods for producing sulphate solutions that contain nickel and cobalt. The method involves processing the material using a solution of sulphuric acid in the presence of a catalyst so as to produce a solution and a solid residue. The catalyst consists of a copper-containing material which is previously dissolved in the sulphuric acid, while the process is carried out at a pH of 2.0 to 4.5.

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Inventors:
KHAGAZHEEV DZHONSON TALOVICH
MIROEVSKY GENNADY PAVLOVICH
POPOV IGOR OLEGOVICH
Application Number:
PCT/RU2000/000077
Publication Date:
September 14, 2000
Filing Date:
March 10, 2000
Export Citation:
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Assignee:
OTKRYTOE AKTSIONERNOE OBSCHEST (RU)
International Classes:
C22B3/08; C22B23/00; (IPC1-7): C22B23/00
Foreign References:
DE2137374B21977-06-16
GB1067007A1967-04-26
SU1326626A11987-07-30
GB1600411A1981-10-14
Other References:
POZIN M.E. Tekhnologya mineralnykh solei: Leningradskoe otdelenie, Khimya, 1974, page 734.
Attorney, Agent or Firm:
Grunina, Alla Efimovna (RU)
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