recovery of copper from chalcocite

Recovery of copper from chalcocite by means of the ...

01.10.1983  Recovery of copper from natural chalcocite by means of pyridine—hydrochloric acid mixtures and pyridine solutions of pyridine hydrochloride is describ

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CA1156050A - Recovery of copper from chalcopyrite - Google ...

RECOVERING COPPER FROM CHALCOPYRITE CONCENTRATE ABSTRACT OF THE DISCLOSURE A process and system are provided for recovering copper from chalcopyrite concentrate. The chalcopyrite is ground to a mean particle size of about 1.5 - 5 microns. The ground chalcopyrite is then divided into a first stream and a second stream. The first stream is

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Laboratory Extraction of Copper from Chalcocite by ...

23.06.2019  A new process for recovering copper from chalcocite concentrate includes roasting in air (to about 0.5 percent S) followed by gaseous reduction to metal. These operations, conducted in two states of fluid-bed processing, were successful only when preceded by

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Recovery of copper from bornite and chalcopyrite by means ...

01.05.1985  As is seen, complete recovery of copper from chalcocite and bornite is reached after 2 h at 50. For dissolution of chalcopyrite an elevated temperature or prolonged time of leaching is necessary. Thus, satisfactory results should be obtained for the leaching of ores containing mainly chalcocite and bornite. The results obtained bring nearer the practical

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Recovery of copper from chalcopyrite - KENNECOTT COPPER ...

The traditional method for recovering copper from copper concentrates which are comprised principally of chalcopyrite is by smelting. In the conventional smelting of copper sulfide concentrates, a copper-iron-sulfide matte is produced in a reverberatory-type furnace. The molten matte is then transferred to converters, where, in the first step of a batch operation, the iron

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US7686866B2 - Recovery of copper from chalcopyrite ...

A process for recovering copper from chalcopyrite is disclosed. The process includes oxidising sulphur in chalcopyrite with a solution under predetermined

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US3880650A - Recovery of copper from chalcopyrite - Google ...

The salt acts as a solvent for the reaction and enables copper to be recovered economically from copper concentrate without the evolution of sulfide pollutants into

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How to Recover Copper from Slag by Flotation

03.02.2021  In addition to chalcocite, finer particles exhibiting the color and characteristics of bornite were observed in the minus 15-micron range. The extremely fine size of these particles indicated that fine grinding would not materially improve copper recovery. A 60-minute grind produced only slightly higher copper recoveries than a 10-minute grind.

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MINERALOGICAL PROFILE OF SUPERGENE SULFIDE ORE IN THE ...

recovery of copper from oxide copper and low-grade chalcocite that is not of sufficient grade for concen-trating. Morenci currently recovers copper from concentrating, heap leaching of chalcocite, and run-of-mine leaching of oxide copper and chalcocite. The reserves at Morenci total 12.1 billion pounds of recoverable copper from 664 metric tonnes of mill ore grading

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How to Recover Copper from Solution

25.03.2017  An electrolytic method for the recovery of pure copper from sulphate solutions is far preferable and will produce cheap copper. In all cases a low current density is required. Hard-lead anodes or composite anodes of hard lead and coke of uniform thickness will be used.

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Recovery of copper from chalcocite by means of the ...

01.10.1983  Recovery of copper from natural chalcocite by means of pyridine—hydrochloric acid mixtures and pyridine solutions of pyridine hydrochloride is describ

More

recovery of copper from chalcocite

Recovery of copper from natural chalcocite by means of pyridine—hydrochloric acid mixtures and pyridine solutions of pyridine hydrochloride is described. The systems were found to be effective media for leaching of chalcocite. Total copper recovery is reached after 15 minutes at 60°C. Get A Quote Recovery of copper from bornite and chalcopyrite by . 1985. 5. 1. TABLE

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「recovery of copper from chalcocite」

Recovery of copper from natural chalcocite by means of pyridinehydrochloric acid mixtures and pyridine solutions of pyridine hydrochloride is described. The systems were found to be effective media for leaching of chalcocite. Total copper recovery is reached after 15 minutes at 60°C. Nuestros servicios . Recovery of copper and cobalt inparative flotation . Chalcocite is

More

Recovery of copper from bornite and chalcopyrite by means ...

01.05.1985  As is seen, complete recovery of copper from chalcocite and bornite is reached after 2 h at 50. For dissolution of chalcopyrite an elevated temperature or prolonged time of leaching is necessary. Thus, satisfactory results should be obtained for the leaching of ores containing mainly chalcocite and bornite. The results obtained bring nearer the practical

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Hana announces recoveries of 79.9% copper from ...

Acid soluble copper represents 13% of the total contained copper. Initial locked cycle metallurgical tests on the sulphides from the Chalcocite Zone show that the mineralized material is highly amenable to conventional flotation methods resulting in a copper recovery of 79.9%. The testing also showed that conventional flotation can produce a ...

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Recovery of copper from chalcopyrite - KENNECOTT COPPER ...

A process for recovering copper from a material containing copper and sulfur, the material including a member selected from the group consisting of chalcopyrite, bornite, chalcocite, covellite, pyrite, cubanite and idaite comprising the following steps: 29. non-oxidizing, 30. molten at temperatures of 475°C or lower, 31. a solvent for the material, 32. capable of dissolving

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MINERALOGICAL PROFILE OF SUPERGENE SULFIDE ORE IN THE ...

recovery of copper from oxide copper and low-grade chalcocite that is not of sufficient grade for concen-trating. Morenci currently recovers copper from concentrating, heap leaching of chalcocite, and run-of-mine leaching of oxide copper and chalcocite. The reserves at Morenci total 12.1 billion pounds of recoverable copper from 664 metric tonnes of mill ore grading

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The leaching behavior of copper and iron recovery from ...

15.10.2021  Copper recovery rate of 82.18% was reached under optimal conditions. ... Thus, the Cu-bearing minerals were chalcopyrite, chalcocite and cuprite in R-PyC. After H 2 SO 4 leaching, spectra signals ascribed to Cu 2 O or Cu 2 S were not observed (See Fig. 12, Fig. 13), which indicated that chalcocite and cuprite were dissolved. In addition, the chalcopyrite was

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Leaching of Copper Sulphides - SAIMM

Copper at Sepon is mainly present as chalcocite with pyrite and a large component of clay mineralisation. The leach residue is subjected to flotation to recover pyrite and elemental sulphur which is subsequently fed to an oxidising autoclave.

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How to Recover Copper from Solution

25.03.2017  How to Recover Copper from Solution. Post navigation. Previous. Next. At the beginning of our investigation we seriously considered what I called the “brutal method” of leaching, namely, the manufacture of sulphuric acid, the solution of the copper from the ore with such acid, and the precipitation of the copper by metallic iron, with the resultant complete, or

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recovery of copper from chalcocite

Recovery of copper from natural chalcocite by means of pyridine—hydrochloric acid mixtures and pyridine solutions of pyridine hydrochloride is described. The systems were found to be effective media for leaching of chalcocite. Total copper recovery is reached after 15 minutes at 60°C. Get A Quote Recovery of copper from bornite and chalcopyrite by . 1985. 5. 1. TABLE

More

「recovery of copper from chalcocite」

Recovery of copper from natural chalcocite by means of pyridinehydrochloric acid mixtures and pyridine solutions of pyridine hydrochloride is described. The systems were found to be effective media for leaching of chalcocite. Total copper recovery is reached after 15 minutes at 60°C. Nuestros servicios . Recovery of copper and cobalt inparative flotation . Chalcocite is

More

Recovery of copper from chalcopyrite

A process for recovering copper from chalcopyrite is disclosed. The process includes oxidising sulphur in chalcopyrite with a solution under predetermined contact conditions and thereby releasing at least part of the copper in the chalcopyrite into the solution as copper ions. The process includes a subsequent step of reducing sulphur in a solid product from step (a) to a

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Copper and Cyanide Recovery in Cyanidation Effluents

precipitation of copper as chalcocite (Cu2S) and cyanide recovery. 1.2. Cyanide and Copper Recovery Processes . There is a growing interest for the recovery of both cop- per and cyanide from silver and gold barren solutions due to high cyanide consumption costs. William Mining Co. is also interested in reducing costs in this way. The cost of recovering and recycling cyanide

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RECOVERY OF COPPER FROM SMELTING SLAG BY SULPHATION ...

solid solution, chalcocite (Cu 2 S), covelite (CuS), pyrite (FeS 2), troilite (FeS), metallic copper, cuprite (Cu 2 O), magnetite (Fe 3 O 4), and gangue minerals. The sulphide content was 2.75%. The gangue minerals comprise fayalite glass, various dendritic ferrites and refractory aggregates. The mineral composition of these materials varies widely and is dependent on various factors

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(PDF) Development of an empirical model for copper ...

Chalcocite (Cu 2 S) has the fastest kinetics of dissolution of Cu in chlorinated media of all copper sulfide minerals. Chalcocite has been identified as having economic interest due to its ...

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MINERALOGICAL PROFILE OF SUPERGENE SULFIDE ORE IN THE ...

recovery of copper from oxide copper and low-grade chalcocite that is not of sufficient grade for concen-trating. Morenci currently recovers copper from concentrating, heap leaching of chalcocite, and run-of-mine leaching of oxide copper and chalcocite. The reserves at Morenci total 12.1 billion pounds of recoverable copper from 664 metric tonnes of mill ore grading

More

The leaching behavior of copper and iron recovery from ...

15.10.2021  Copper recovery rate of 82.18% was reached under optimal conditions. ... Thus, the Cu-bearing minerals were chalcopyrite, chalcocite and cuprite in R-PyC. After H 2 SO 4 leaching, spectra signals ascribed to Cu 2 O or Cu 2 S were not observed (See Fig. 12, Fig. 13), which indicated that chalcocite and cuprite were dissolved. In addition, the chalcopyrite was

More

Leaching of Copper Sulphides - SAIMM

Copper at Sepon is mainly present as chalcocite with pyrite and a large component of clay mineralisation. The leach residue is subjected to flotation to recover pyrite and elemental sulphur which is subsequently fed to an oxidising autoclave.

More

How to Recover Copper from Solution

25.03.2017  How to Recover Copper from Solution. Post navigation. Previous. Next. At the beginning of our investigation we seriously considered what I called the “brutal method” of leaching, namely, the manufacture of sulphuric acid, the solution of the copper from the ore with such acid, and the precipitation of the copper by metallic iron, with the resultant complete, or

More

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