recover cobalt copper sulfide concentrates

Recover Cobalt & Copper from Sulfide Concentrates

2018-2-27 · In 1979, the Bureau undertook laboratory research to develop a process to recover cobalt and copper from a concentrate supplied by Noranda. The supplied concentrate had a 10-fold higher copper concentration

Recovery of Cobalt and Copper From Complex Sulfide ...

RECOVERY OF COBALT AND COPPER FROM COMPLEX SULFIDE CONCENTRATES By R. O. Dannenberg,1 P. C. Gardner/ S. R. Crane/ and D. C. SeideP ABSTRACT The Bureau of Mines conducted laboratory investigations with the objective of developing an alternative process for recovering cobalt and copper from complex sulfide concentrates. Processes currently used de­

Recovery of cobalt and copper from complex sulfide ...

2021-7-13 · "The Bureau of Mines conducted laboratory investigations with the objective of developing an alternative process for recovering cobalt and copper from complex sulfide concentrates. Processes currently used depend largely upon precipitation techniques to remove impurities and recover cobalt from sulfate liquors prepared by oxidative pressure ...

NIOSHTIC-2 Publications Search - 10006031 - Recovery of ...

The Bureau of Mines conducted laboratory investigations with the objective of developing an alternative process for recovering cobalt and copper from complex sulfide concentrates. Processes currently used depend largely upon precipitation techniques to remove impurities and recover cobalt from sulfate liquors prepared by oxidative pressure leaching of the sulfide concentrates.

Recovery of copper, nickel and cobalt from acidic pressure ...

Recovery of copper, nickel and cobalt from the acidic pressure leaching solutions of Jinbaoshan (YN Province, PRC) low-grade sulfide flotation concentrates was investigated. The proposed technique includes four major steps: (1) the acidity adjustment of the acidic pressure leaching solutions; (2) ...

Recovery of copper, nickel and cobalt from acidic pressure ...

Recovery of copper, nickel and cobalt from the acidic pressure leaching solutions of Jinbaoshan (YN Province, PRC) low-grade sulfide flotation concentrates was investigated.

Recovery of copper, nickel and cobalt from acidic pressure ...

2007-6-1 · Based on the data listed in Table 3, it was calculated that the percent copper extraction by XD 5640 reached 99.9%, and its percent stripping recovery reached 95.5%.The total recovery of copper in the process reaches 95% or more. It is also indicated that the co-extraction rate of nickel and cobalt was near to 0%, with no loses in the process.

RECOVERY OF COBALT AND NICKEL BY ATMOSPHERIC

2014-9-8 · The analysis of metals leaching exhibited a very strong relationship between nickel, cobalt and copper recovery. It was found, that both the Ni and Co leaching rate and leaching recovery depend on copper leaching recovery value. Cobalt and nickel start to leach very rapidly when about 90 – 95% of copper is leached out. This suggests, that Co and Ni sulfides are disseminated in the matrix of copper minerals and leaching solution has a very limited access to them at the beginning of the process. It is expected, that enhancing the copper leaching rate will have a positive effect on the leaching recoveries of cobalt and nickel as the Co and Ni bearing minerals will be faster exposed to the leaching solution. Figure 3 presents the relationship between Co and Ni recovery vs. Cu recovery for one of the leaching

CESL Publication Nickel Cobalt Recovery Bulk Copper

2015-11-20 · The mineralogy of the Mesaba ore makes it challenging to produce a marketable Cu concentrate at reasonable recoveries due to the fact that the Cu frequently occurs as the Cu-poor sulphide mineral, cubanite, (CuFe2S3), which can yield a theoretical maximum grade of only 23% Cu. In addition the cubanite is often tightly interlocked with the main Ni mineral, pentlandite, thus further reducing the Cu grade and introducing a deleterious impurity for the Cu smelter. Ni recovery to a marketable concentrate is virtually impossible for similar reasons. Some of the Cu does occur as chalcopyrite and therefore Teck is investigating the limited production of a marketable Cu concentrate at modest Cu

Cobalt and Nickel Recovery From Missouri Lead Belt ...

2016-6-7 · in the copper concentrates (fig. 1). At the present time, no effort is being made to recover any of the cobalt, and only a small portion of the nickel is being recovered during copper elec­ trorefining. Because the Nation is almost totally dependent on foreign

Recovery of copper, nickel and cobalt from acidic pressure ...

Recovery of copper, nickel and cobalt from the acidic pressure leaching solutions of Jinbaoshan (YN Province, PRC) low-grade sulfide flotation concentrates was investigated. The proposed technique includes four major steps: (1) the acidity adjustment of the acidic pressure leaching solutions; (2) ...

Recovery of copper, nickel and cobalt from acidic pressure ...

Recovery of copper, nickel and cobalt from the acidic pressure leaching solutions of Jinbaoshan (YN Province, PRC) low-grade sulfide flotation concentrates was investigated.

Recovery of cobalt, nickel, and copper from slags, using ...

2012-2-7 · This technology is applicable to the recovery of nickel, cobalt, copper, and platinum group metals from furnace or converter slags emanating from copper or nickel smelters treating sulphide concentrates. Pilot-plant testwork at Mintek has demonstrated recoveries of 98% for nickel and over 80% for cobalt, at power levels of up to 600 kW.

Recovery of Nickel and Copper from Polymetallic Sulfide ...

The leaching results of nickel, copper, iron and cobalt was analyzed by ICP methods. Process possibility of polymetallic sulfide concentrates through a three-step procedure (oxidation roasting — chlorination — water leaching) was suggested. Ammonium chloride could react with nickel/copper oxides to produce intermediate complexes.

Recovery of Nickel and Copper from Polymetallic Sulfide ...

2016-2-3 · The leaching results of nickel, copper, iron and cobalt was analyzed by ICP methods. Process possibility of polymetallic sulfide concentrates through a three-step procedure (oxidation roasting - chlorination - water leaching) was suggested. Ammonium chloride could react with nickel/copper oxides to produce intermediate complexes.

Recovery of copper and cobalt in the comparative

2020-4-16 · copper recovery with a yield of 99.63%. At pH=11, the concentrate was found at 16.1% copper recovery with a yield of 99.05%. For the recovery of cobalt, DANA (105 g/t) was found better as the collector at natural pH producing a concentrate at 0.51% cobalt recovery yield of 76.48%. At pH=11, PAX (105 g/t) was found better as the collector.

copper cobalt ore processing - disi.pl

Copper Cobalt Ore Processing - gkz-noris.de. Sulfide Ore Treatment Gold Silver Copper Cobalt. A procedure was developed for recovering gold silver cobalt copper and zinc from a massive sulfide ore by a hydrometallurgical process the procedure consists of 1 oxygen pressure leaching 2 iron arsenic and copper removal from the leach solution by precipitation 3 selective extraction of cobalt and ...

US3773494A - Smelting of copper sulphide concentrates

In smelting ores and concentrates of copper or nickel, matte fall is obtained by recycle of ferrous sulfate which is produced when the matte is leached with sulfuric acid. The residue from leaching then contains the copper, nickel or cobalt values in concentrated form. In this method the ferrous sulfate is reduced to ferrous sulfide at elevated temperatures.

SMELTING OF COPPER SULPHIDE CONCENTRATES WITH

In smelting ores and concentrates of copper or nickel, matte fall is obtained by recycle of ferrous sulfate which is produced when the matte is leached with sulfuric acid. The residue from leaching then contains the copper, nickel or cobalt values in concentrated form. In this method the ferrous sulfate is reduced to ferrous sulfide at elevated ...

Cobalt, copper: DRC bans export of copper and cobalt ...

2021-5-28 · Yesterday, Fastmarkets reported that an order sent to miners in the Democratic Republic of Congo (DRC), on Wednesday 26 May, has banned the export of copper and cobalt concentrates. Fastmarkets confirmed with three companies operating copper and cobalt mines that they all received the notice. At present, trucks carrying copper and cobalt concentrates can still pass through the border,

Recovery of cobalt, nickel, and copper from slags, using ...

2012-2-7 · This technology is applicable to the recovery of nickel, cobalt, copper, and platinum group metals from furnace or converter slags emanating from copper or nickel smelters treating sulphide concentrates. Pilot-plant testwork at Mintek has demonstrated recoveries of 98% for nickel and over 80% for cobalt, at power levels of up to 600 kW.

Why the world is demanding more cobalt, and why new ...

2017-9-29 · Copper-cobalt (oxides and sulfides) have a more complex series of steps that are followed to purify cobalt. Copper-cobalt ores are primarily found in Zambia and the DRC, where the cobalt is recovered from copper flotation concentrates, using a roast

Cobalt Recovery Through Sulphating Roast of Cu/Co ...

Abstract. In 2006, Hatch was awarded a contract to supply fluidized bed technology for the Katanga Mining Limited (KML) copper-cobalt processing project in D.R. Congo [1]. The new roaster and the associated solids and off-gas treatment plants are part of the revitalization of an existing facility, which was historically one of the largest ...

copper cobalt ore processing - disi.pl

Copper Cobalt Ore Processing - gkz-noris.de. Sulfide Ore Treatment Gold Silver Copper Cobalt. A procedure was developed for recovering gold silver cobalt copper and zinc from a massive sulfide ore by a hydrometallurgical process the procedure consists of 1 oxygen pressure leaching 2 iron arsenic and copper removal from the leach solution by precipitation 3 selective extraction of cobalt and ...

Selective recovery of copper from copper-nickel sulfide ...

Copper can be selectively segregated from roasted copper-nickel sulfide concentrates. Conditions are reported for desulfurizing-roasting followed by segregation treatment to selectively reduce and segregate copper without nickel contamination. A process is described which is applicable for treating low grade sulfide concentrates such as are produced in Botswana (4.6 pct Cu, 3.1 pct Ni) and ...

Sulfate roasting copper-cobalt sulfide concentrates ...

2017-11-25 · This is the story of the successful application of fluidized bed technique to a series of reactions taking place within narrow ranges of operating conditions, and the steps by which Union Miniere passed from laboratory to full-scale operation.

Cobalt and Nickel Recovery From Missouri Lead Belt ...

2016-6-7 · in the copper concentrates (fig. 1). At the present time, no effort is being made to recover any of the cobalt, and only a small portion of the nickel is being recovered during copper elec­ trorefining. Because the Nation is almost totally dependent on foreign

LEACHING OF COPPER CONCENTRATES

2020-4-2 · copper oxides have been in common use for some time. Prior to the development of the Sherritt-Gordon process for nickel and cobalt in which copper is recovered as high grade copper sulfide, copper sulfides were economically recovered in a hydrometallurgical process only during the leaching of waste dumps. . Need for Hydrometallurgical Processes

ABSTRACT - Orway

2014-10-1 · copper sulfide concentrates supplied (and copper concentrates in general) can be loosely grouped into two categories, i.e. secondary and primary. Examples of these are given in . Figure 1. The major elements of concentrate types A and B are given in Table 5. Examples of t. he

Copper sulfide concentrates — Determination of copper ...

Copper sulfide concentrates — Determination of copper content — Titrimetric methods 1 Scope This document specifies two titrimetric methods for the determination of the copper content of copper sulfide concentrates in the range 15 % (m/m) to 50 % (m/m), using sodium thiosulfate after separation

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