C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/284, 53/292
C22B 15/00 (2006.01) C01G 3/00 (2006.01) C01G 53/00 (2006.01) C22B 3/30 (2006.01) C22B 3/32 (2006.01) C22B 3/38 (2006.01)
Patent
CA 1047258
ABSTRACT OF THE DISCLOSURE Method for treating basic salts to preferentially extract copper without using a base to maintain the required pH. The liberation of unreacted hydrogen ions during the ion exchange reaction is eliminated by partially dissolving the basic salt mixture with an amount of acid that is equivalent to the non-copper content of the basic mixture. An amount of organic ion exchange extractant is selected so that the exchangeable hydrogen ion on the extractant is equivalent to or in excess of the amount of copper in the metal bearing liquor.
237849
Natwig David L.
Skarbo Roald R.
Kennecott Copper Corporation
Na
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