Title:
RECOVERY OF METAL CONSTITUENTS FROM BASIC* AQUEOUS AND AMMONIACAL LEACHING SOLUTION
Document Type and Number:
Japanese Patent JPS51112421
Kind Code:
A
Abstract:
Organic acids are added to ammoniacal leach liquors containing base metals such as copper, nickel and cobalt. Ammonia and carbon dioxide are then stripped from the leach liquor by heating the leach liquor sufficiently to drive off the ammonia and carbon dioxide. The resulting loss of ammonia and carbon dioxide causes the pH of the leach liquor to drop and enables the metal values to load onto the organic acid. Metal values are selectively stripped from the loaded organic acid.
Inventors:
JIYOSEFU POORU BEMUSURAA
JIYON KENISUTON RITSUCHIFUIIRU
JIYON KENISUTON RITSUCHIFUIIRU
Application Number:
JP2304976A
Publication Date:
October 04, 1976
Filing Date:
March 03, 1976
Export Citation:
Assignee:
KENNECOTT COPPER CORP
International Classes:
C01G3/00; C01G51/00; C01G53/00; C22B3/00; C22B3/20; C22B3/32; C22B3/38; C22B15/00; C22B23/00; C22B47/00; (IPC1-7): C22B15/10; C22B23/04; C22B47/00