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Improved methods of heap leaching of copper ore with aqueous sulfuric acid solutions comprising a fluoroaliphatic surfactant are disclosed The fluoroaliphatic surfactant increases the amount of copper values leached and recovered
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EP0536914B1 EP92308598A EP92308598A EP0536914B1 EP 0536914 B1 EP0536914 B1 EP 0536914B1 EP 92308598 A EP92308598 A EP 92308598A EP 92308598 A EP92308598 A EP 92308598A EP 0536914 B1 EP0536914 B1 EP 0536914B1 Authority EP European Patent Office Prior art keywords aqueous fluoroaliphatic copper solution surfactant Prior art date 19911010 Legal status
Apr 14 1993 · 1 In a method for leaching of copper ore comprising the steps of A contacting a heap of low grade copper oxide ore with an aqueous leaching solution comprising sulfuric acid and allowing said solution to flow through the heap B collecting the resulting pregnant aqueous solution and C transferring copper values from the aqueous solution into an organic medium by extraction the
Patent EP0536914A1 Acid leaching of copper ore heap with Improved methods of heap leaching of copper ore with aqueous sulfuric acid solutions comprising a fluoroaliphatic surfactant are disclosed
Sulfuric acid leaching of Turkish chromite concentrate In the experiments chromite ore concentrate from Pinarbasi–Kayseri region of Turkey sulfuric acid 95–98 vol H 2 SO 4 and perchloric acid 724 vol HClO 4 were used acid leaching ep0536914a1
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Acid Leaching Ep0536914a1 Method Leaching Us8163063 gold and copper benefi ion from the copper ores Patent US8163063 Method of leaching copper sulfide ore A method of leaching copper from a copper sulfide ore to the iodide ions and leaching Get Price