Cobalt Nickel and Copper Recovery With Resin-In-pulp - Download as PDF File (.pdf), Text File (.txt) or read online.
The recovery of nickel and cobalt from a sulphate bioleach solution using Dow M4195 ... which entail the removal of iron and the recovery of copper, have been described by Liebenberg et al. (2013). It was proposed that hydroxide precipitation be used to remove iron from solution, after
Cobalt sulfides occasionally occur in lead-zinc deposits in quantities sufficient to justify their recovery. Mineral processing. The most important sulfide sources, the copper-cobalt ores of Congo (Kinshasa) and Zambia, are processed in the conventional manner to produce a copper-cobalt concentrate.
Cobalt in the copper solvent extraction raffinate was recovered by (1) solvent extraction with Cyanex 272 (an alkyl phosphinic acid-type extractant), (2) stripping the loaded extract with electrolyte recycled from the cobalt electrowinning cell, and (3) returning the loaded strip liquor to the electrowinning cell for cobalt recovery.
While the leached copper was recovered effectively using traditional SX/EW technology, recovery of nickel and cobalt from the leach solution was examined, but the flow sheet was not finalized. In 2002, the scope of the Mesaba project was redefined from making refined nickel and cobalt metal
Mintek has been working on the recovery of cobalt, and the associated valuable metals, from slags, since 1988, using DC-arc furnace technology to effect selective carbothermic reduction of the oxides of cobalt, nickel, copper, (and zinc, where present), while retaining the maximum possible quantity of iron as oxide in the slag.
Copper and cobalt recovery from a copper–cobalt ore of Democratic Republic of Congo (DRC) by ammonium chloride roasting is studied. The effects of roasting temperature, roasting time, and the dosage of ammonium chloride on the leaching rate of copper and cobalt are investigated.
Copper and cobalt can be found on nickel laterite ores, and cobalt can be found also on copper ores, and many contaminants such as iron, aluminum, and magnesium are associated with these ores.
In this study, the flotation of oxidized copper ore obtained from Ergani Copper Mining Company in Turkey was performed. This ore contains 2.03% copper, 0.15% cobalt and 3.73% sulfur. An effective processing method has not been found to recover copper and cobalt from this ore, which has been stockpiled for 40-45 years in the idled plant.
Recovery from nickel-cobalt sulfide concentrates (Sherritt process) The Sherritt process is a hydrometallurgical process named for Sherritt Gordon Mines Ltd. (now Sherritt International) of Sherridon and Lynn Lake Manitoba Canada, based on the older Forward process developed by Dr. Frank Forward for the recovery of copper and nickel from those same mines.
A generalized flow sheet of the recovery of copper, cobalt, and nickel can be found below, Figure 1. Fig. 1: Generalized Flow Sheet of Copper/Cobalt/Nickel Recovery (Fisher, 2011) When designing processes for cobalt recovery, it is important to analyze and overcome some of the technical challenges that lie ahead.
The recovery of copper and cobalt from ancient copper slags from the Küre region of Turkey was investigated. A fayalitic-type of ancient copper slag containing 1.24% Cu, 0.53% Co and 53.16% Fe ...
Recovery of Cobalt and Copper From Complex Sulfide Concentrates By R. O. Dannenberg, P. C. Gardner, S. R. Crane, and D. C. Seidel u.s. Bureau of Mines Spokane Research Center ... traction to recover cobalt and copper by a method other than that of conventional precipitation.
At this point, a cobalt recovery circuit could be utilized to extract and recover cobalt from the spent copper leach solution; the barren liquor would be recycled to the leaching dump. Recovery of cobalt from spent leach solutions has significant advantages over methods for recovering cobalt …
The FS for an open pit, 1 Mtpa dense media separation (DMS) project confirmed the viability of a high grade copper and cobalt project capable of producing 19 360 tpa of contained copper and 1 507 tpa of contained cobalt (at an average recovery of 64% copper and 40% cobalt) over a seven year mine life with low capital costs (US$53.12 million ...
Recovery of cobalt from slag in a DC arc furnace at Chambishi, Zambia . ... Copper Cobalt Nickel and Zinc Recovery conference, Victoria Falls, Zimbabwe, 16-18 July 2001 . Abstract. The 20 Mt reverberatory furnace slag dump at Nkana in Zambia contains a substantial quantity of cobalt.
Feb 17, 2018· Recovery of cobalt, nickel, and copper from slags, using DC-arc . This technology is applicable to the recovery of nickel, cobalt, copper, and platinum group Slags are sometimes treated by slow cooling, milling, and flotation.
If the cobalt is found with chalcopyrite, bulk flotation can be carried out with xanthate at pH 10, and separation made at pH 4 with an amine and combinations of fatty acid to recover the cobalt minerals.
Cobalt extraction refers to the techniques used to extract cobalt from its ores and other compound ores. ... Recovery from copper-cobalt oxide concentrates. The ore is comminuted and the cobalt rich oxides are separated by froth flotation.
About 2.5 million tonnes of copper smelter slag are available in Küre, northern part of Turkey. This slag contains large amounts of metallic values such as copper and cobalt. A representative slag sample containing 0.98% Cu, 0.49% Co and 51.47% Fe was used in the experimental studies.
Nickel Recovery Nickel/Cobalt rich filtercake material is recovered by steam drying. The resulting concentrate can then be re-used or recycled. We also recover other valuable metals such as copper, tin and cobalt. Processes used include precipitation, steam stripping, sludging and steam drying.
The Zambian refinery is designed to produce between 2,000 and 4,000 tons of cobalt and more than 5,000 tons of copper per year from the slag dumps. See the references below for details on the use of DOWEX M4195 Chelating Resin in the refining of cobalt.
PROCESSING CONSIDERATIONS FOR COBALT RECOVERY 385 Introduction The increased demand for copper and cobalt together with the increase in political stability in the region, have resulted in renewed interest in developing the copper and cobalt deposits in the Katanga Province of the Democratic Republic of the Congo (DRC). A number of projects,
The effects of the equilibrium pH on the recovery of copper, cobalt, and iron are shown in Figure 3a. It is observed that when the pH increased from 0.25 to 1.25, the recovery of copper has a rapid increase from 45.4% to 98.6%. However, there is only a slight increase in the copper recovery when the pH was further increased to 2.00.