copper ore leach with hcl

(PDF) Leaching of Copper Ores: Effects of Operating Leaching of copper from a Jordanian copper ore has been studied using a stirred batch reactor with hydrochl

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copper ore leach with hcl

  • (PDF) Leaching of Copper Ores: Effects of Operating

    Leaching of copper from a Jordanian copper ore has been studied using a stirred batch reactor with hydrochloric acid as the main lixiviant, under the following conditions: temperature 25 –15/10/2009· Plots of 1 − (1 − x) 1/3 vs leaching time at different temperatures for the dissolution reactions of copper with H 2 SO 4 (a), HCl (b), HNO 3 (c) and citric acid (d) solutions From the slopes of the straight lines ( Fig 8 ) the apparent rate constants, k , were evaluatedLeaching of copper oxide with different acid solutionsBoth citric acid and HCl have shown more than 75% recovery of copper and metals like Ag, Al, Pb, Ni, and Fe in the leaching solution in 4 h and 24(PDF) Leaching of copper oxide with different acid solutions

  • Leaching of Primary Copper Sulfide Ore in Chloride

    Copper extraction from primary copper sulfide ore from a typical porphyry copper deposit from Antofagasta, Chile, was investigated after leaching with a chlorideferrous media at two temperatures The study focused on whether this chemical leaching system could be applied at an industrial scale Leaching tests were conducted in columns loaded with approximately 5023/5/2017· The flowsheet discussed in this study is for treatment of 100 tons per day oxidesulfide copper ore by the leaching process using sulfuric acidferric sulfate solvent This flowsheet would also be suitable for a larger tonnage by proper sizing of the various units of equipment The flowsheet contemplates a six to seven day leachwash cycle with one tankAcid Leaching Copper Ore Treatment Method1/1/2019· Heap leaching accounts for around 20% of the global production of copper In heap leaching coarsely crushed ore particles are contacted with an aqueous lixiviant percolating through large packed beds (heaps) of the ore particles, with the loaded solution collected at the foot of the heap for metal recovery, solution makeup and recycleHeap Leaching of Copper Ores – State of the Science

  • HCl Hydrochloric Leaching of Manganese Silicate Ore

    3/3/2018· In the first stage, a 35pctsolids slurry of ore leached in stage 2 was leached at 50° C for 3 h with a fluoridebearing leaching medium containing 100 pct of stoichiometric HCl (056 g HCl per gram of ore) and FMn mole ratio of 02 Leach solution from the first stage was sent to the second stage and contacted with fresh ore Ore was added to produce a 35pct slurryThis paper deals with the investigation of column leaching of lowgrade ores from the copper mine Cerovo, Serbia (the approximate Cu content in the ore ranges from 02 03 % with >10 % copper in the form of oxide minerals) The leaching experiments were performed using sulphuric acid solutions, whereby the kinetics of copper leaching was investigated with respect to acidLEACHING OF LOWGRADE COPPER ORES: A CASE STUDY FORAbstract−M/S Hindustan Copper Limited (HCL), India generates large amounts of lean sulfide ores of copper The current production of lean copper ores in India is 055 million tons with ~03% average copper content Heapbioleaching of the lean copper ores in 15 and 30 ton scales was undertaken at IMMT, Bhubaneswar The leaching study showed 009%Recovery of copper values from bioheap leaching of low

  • Leaching of Primary Copper Sulfide Ore in ChlorideFerrous

    Copper extraction from primary copper sulfide ore from a typical porphyry copper deposit from Antofagasta, Chile, was investigated after leaching with a chlorideferrous media at two temperatures The study focused on whether this chemical leaching system could be applied at an industrial scale Leaching tests were conducted in columns loaded with approximately 5023/5/2017· The flowsheet discussed in this study is for treatment of 100 tons per day oxidesulfide copper ore by the leaching process using sulfuric acidferric sulfate solvent This flowsheet would also be suitable for a larger tonnage by proper sizing of the various units of equipment The flowsheet contemplates a six to seven day leachwash cycle with one tankAcid Leaching Copper Ore Treatment Method3/3/2018· In the first stage, a 35pctsolids slurry of ore leached in stage 2 was leached at 50° C for 3 h with a fluoridebearing leaching medium containing 100 pct of stoichiometric HCl (056 g HCl per gram of ore) and FMn mole ratio of 02 Leach solution from the first stage was sent to the second stage and contacted with fresh ore Ore was added to produce a 35pct slurryHCl Hydrochloric Leaching of Manganese Silicate Ore

  • Heap Leaching of Copper Ores – State of the Science

    1/1/2019· Heap leaching accounts for around 20% of the global production of copper In heap leaching coarsely crushed ore particles are contacted with an aqueous lixiviant percolating through large packed beds (heaps) of the ore particles, with the loaded solution collected at the foot of the heap for metal recovery, solution makeup and recycleIn the process of the invention a slurry of finely ground copper sulfidecontaining ore or concentrate is agitated in a solution of ferric chloride and hydrochloric acid in the anode compartment of an electrolytic cell which has cathode and anode compartments separated by a diaphragm preventing the movement of solids and liquids but allowing the passage of ionsDirect recovery of metals from sulphide ores by leachingThis work investigates the effect of an agglomeration and curing pretreatment on leaching of a copper sulfide ore, mainly chalcopyrite, using minicolumns in acidnitratechloride media Ten pretreatment tests were conducted to evaluate different variables, namely the addition of nitrate as NaNO3 (117 and 233 kg/ton), chloride as NaCl (21 and 198 kg/ton), curing time (20 andAccelerating Copper Leaching from Sulfide Ores in Acid

  • Selective Copper Recovery by Acid Leaching from Printed

    Selective copper leaching was achieved with all the acids studied, including HCl, HNO3, and H2SO4 The lower concentration of acid solutions resulted in a larger difference in leachabilities between Cu and Fe Among three leachates, the H 2SO4 solution performed effectively on the selective leaching of Cu and Fe Adjusting the pulp density to 4% and the H2SO4moving through the ore, leaching the copper from the ore as soluble copper sulphate The entire leaching process will take 10 minutes before your first leach solution has collected in the beaker below the ore 5Pour a few mls ofthis leach solution intoone of your sample bottles Label this sample as Leach 1 6Pour the leach solution back into the top of the tubing and repeatLEACHING THE COPPER ORE GaryTurnerScienceMD SOKIĆ et al: ACID LEACHING OF OXIDESULFIDE COPPER ORE Hem ind 69 (5) 453–458 (2015) 455 tion (25 dm3), and the time of leaching was measured The solution samples were taken in a predetermined time intervals for chemical analysis on Cu2+, Fe2+ and Zn2+ After completing the leaching process, solid resi due was filtered, than washed andAcid leaching of oxide–sulfide copper ore prior the

  • Recovery of copper values from bioheap leaching of low

    Abstract−M/S Hindustan Copper Limited (HCL), India generates large amounts of lean sulfide ores of copper The current production of lean copper ores in India is 055 million tons with ~03% average copper content Heapbioleaching of the lean copper ores in 15 and 30 ton scales was undertaken at IMMT, Bhubaneswar The leaching study showed 009%Copper extraction from primary copper sulfide ore from a typical porphyry copper deposit from Antofagasta, Chile, was investigated after leaching with a chlorideferrous media at two temperatures The study focused on whether this chemical leaching system could be applied at an industrial scale Leaching tests were conducted in columns loaded with approximately 50Leaching of Primary Copper Sulfide Ore in ChlorideFerrousThis work investigates the effect of an agglomeration and curing pretreatment on leaching of a copper sulfide ore, mainly chalcopyrite, using minicolumns in acidnitratechloride media Ten pretreatment tests were conducted to evaluate different variables, namely the addition of nitrate as NaNO3 (117 and 233 kg/ton), chloride as NaCl (21 and 198 kg/ton), curing time (20 andAccelerating Copper Leaching from Sulfide Ores in Acid

  • Heap Leaching of Copper Ores – State of the Science

    1/1/2019· Heap leaching accounts for around 20% of the global production of copper In heap leaching coarsely crushed ore particles are contacted with an aqueous lixiviant percolating through large packed beds (heaps) of the ore particles, with the loaded solution collected at the foot of the heap for metal recovery, solution makeup and recycleIn the process of the invention a slurry of finely ground copper sulfidecontaining ore or concentrate is agitated in a solution of ferric chloride and hydrochloric acid in the anode compartment of an electrolytic cell which has cathode and anode compartments separated by a diaphragm preventing the movement of solids and liquids but allowing the passage of ionsDirect recovery of metals from sulphide ores by leachingHeap leaching copper ore using sodium nitrate: : Arias: : Process for the rapid leaching of chalcopyrite in the absence of catalysts: : Pinches et al : Hydrometallurgical copper extraction process: : Jones: : Hydrometallurgical recovery of metal values from cooper containing sulphide materials: : Sawyer et alChloride heap leaching BHP Billiton SA Limited

  • LEACHING THE COPPER ORE GaryTurnerScience

    moving through the ore, leaching the copper from the ore as soluble copper sulphate The entire leaching process will take 10 minutes before your first leach solution has collected in the beaker below the ore 5Pour a few mls ofthis leach solution intoone of your sample bottles Label this sample as Leach 1 6Pour the leach solution back into the top of the tubing and repeatacid during the leaching of such ores, which can make the process uneconomical (Habashi, 1970, 1980; YouCai et al, 2013) Table 1 shows the acid consumption and estimated time to complete the dissolution of major carbonaceous materials in 10 g/L sulfuric acid solutions It can be seen that for acid leaching, each ton of carbonate mineral (egAn investigation into the leaching behaviour of copperA copper oxide ore leaching method that does not utilize sulfuric acid, which comprises an aqueous solution of tricarboxylic acid mixed in water (the acidity in the mixture varies between pH 10 and 50) A step of impregnating the copper ore with an organic nonpolluting leachate, a step of obtaining copper citrate, and optionally washing the impregnated copper ore again with anJPA Copper oxide leaching method replacing

  • Leaching of Copper Sulphides SAIMM

    Ore feed Leach residence time Number of leach reactors Effective volume per leach reactor 3 Agitation power (with oxygen) 165 t/h 8 h 8 350 m 14 kW/m3 Installed motor size Solids concentration Copper leach extraction Leach temperature Oxygen supply 500 kW 500 – 550 g/L ~ 92% 90°C 98% pure Sepon Copper Plant Copper at Sepon is mainly present as chalcocite

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