| 摘要 |
A process for the extraction of copper from a copper sulphide containing concentrate such as chalcopyrite, involves dispersing the finely divided copper sulphide containing concentrate in an aqueous sulphuric acid solution to form a slurry; providing an effective amount of a suitable surfactant such as lignosol or quebracho; reacting with agitation the slurry and surfactant with free oxygen bearing gas in a pressure vessel at an elevated temperature to extract the copper values from the concentrate to produce the final leach solution containing dissolved copper values and a solid residue; and separating the final leach solution containing the dissolved copper values from the solid residue. |
