mintek copper anode slimes

for recovery Hydrometallurgical

The anode slime obtained from Indian Copper Complex, Ghatsila was used for the recovery studies with the aim of developing a hydrometal-lurgical processing route The chemical analysis of the slime showed that it contained valuable metals like copper, nickel, selenium, tellurium, gold.

Recovering gold from anode slimes using a green extractant ,

Anode slime also contains large amounts of residual copper, which greatly exceed the amount of gold in the material Hence, a powerful separation technique is required to selectively recover the economically valuable gold Chloride leaching of anode slimes is generally considered as being the preferred method of gold extraction from anode slim


ANODE SLIMES PROCESSING The anode slimes collected from the bottom of the electrolytic cells are processed to recover copper, selenium, tellurium and precious metals In general, refineries employ a combination of both pyrometallurgical and hydrometallurgical techniqu Decopperisation is the first step in most anode slimes treatment plants

Pretreatment of copper anode slime with alkaline pressure ,

Apr 10, 2014· The copper anode slime used in the experiments was provided by one of the copper smelters in China Before experiments, the original copper anode slime was washed with hot water of 80 °C and then sieved with 100 mesh sieve to remove large particleAnd then slurry was vacuum filtered and dried at 120 °CThe chemical compositions of dried copper anode slime were shown in Table 1


Jul 18, 2013· Antimony- and bismuth-rich copper anodes, anode slimes and decopperized anode slimes from industrial copper electrorefineries were studied mineralogically Antimony in the anodes occurs mainly as Cu-Pb-As-Sb-Bi oxide inclusions along the copper grain boundaries; bismuth is mainly present as Cu-Pb-As-Sb-Bi oxide, Cu-Bi-As oxide, Cu-Pb-As-Bi .

Some Studies on Sulfuric Acid Leaching of Anode Slime with ,

Nov 13, 2002· The most effective hydrometallurgical processing of anode slime is based on a chlorination route However, it requires special attention with respect to pollution problems and construction materials To minimize the problems, a new hydrometallurgical approach was pursued for the recovery of valuable metals and metalloids from copper electrorefining anode slime The process ,

A Novel Process For Recovery Of Te And Se From Copper ,

Anode slimes almost invariably contain copper, tellurium, selenium, silver, gold and traces of platinum group metals In order to recover the precious metals from slimes, refineries must first complete the separation of copper, tellurium and selenium prior to refining silver and gold to pure products

Anode Slimes — Reclaim, Recycle, and Sell your Precious ,

Materials that are by-products of copper refining and smelting Anode Slimes usually contain high concentrations of silver, as well as gold, platinum, palladium and possibly rhodium; See the other forms of silver Specialty Metals accepts here Refining Rates and Fees for Anode Slim

Copper Smelting and Refining Process | Pan Pacific Copper

Dissolved copper from the anode is electrolytically deposited on the stainless steel cathode plate After about 10 days of electrolysis, the cathode is lifted out and stripped from the stainless steel plate, resulting in the completion of refined copper (with grade of 9999%) as a final product

Anode Slime - Hindustan Copper Limited

Hindustan Copper Limited (HCL), a public sector undertaking under the administrative control of the Ministry of Mines, was incorporated on 9th November 1967 It has the distinction of being the nation’s only vertically integrated copper producing company as it manufactures copper right from the stage of mining to beneficiation, smelting, refining and casting of refined copper metal into .


The processing of copper anode slimes is an additional economic driver for copper electrorefineries, due to the fact that slimes contain precious metals such as silver, gold and platinum group metals (PGMs) (eg Pt and Pd) as well as base metals like copper, nickel, selenium, tellurium and impurity elements such as lead, antimony and bismuth

Slimes and Sludges, copper electrolytic - Registration ,

Slimes and Sludges, copper electrolytic EC Number: 266-972-5 EC Name: Slimes and Sludges, copper electrolytic CAS Number: 67711-95-9 , Origin: inorganic Substance Identifiers open all close all Trade name Anodenschlamm (Anode slime) anode slime ; lead flakes Compositions Boundary Composition(s) open all close all slimes and sludges .

Leaching kinetics of selenium from copper anode slimes ,

copper anode slimes, copper sulfate is the matrix that cements the finer particles together and selenium exists in the form of Ag−Cu selenide, which appears as spherical or ring-like shape XRF analysis has been conducted on the copper anode slimes and the results are shown in Table 1 The main elements have been analyzed .

The treatment of copper refinery anode slimes | SpringerLink

There are numerous viable approaches to the treatment of anode slimes from electrolytic copper refining Of particular interest in the treatment of slimes are the behavior and recovery of selenium The understanding of the process chemistry involved in the treatment of anode slimes should be aided considerably by recent work on the formation and characterization of slim


The impure anode copper contains both base and noble metals as impuriti The base metals dissolve from the anode with copper and report to the electrolyte The noble metals do not dissolve and form anode slim The anode slimes formed can either adhere to the anode surface or fall to the bottom of the refining cell (Davenport et al 2002) The

The effect of electrolyte additives on cathode surface ,

anode slimes entrapped on the surface, as in Figures 1, 2 and 3 The nodular and dendritic growths on the cathode surface cause short circuits and decrease current efficiency (Safizadeh et al2009) The electrorefined copper cathodes also show rough surfaces that cause anode slimes and suspended solids to adhere and entrap onto the cathode surface


Processing of copper anode-slimes for extraction of metal values 127 Forty-gram samples of the decopperised slime were leached with 1 dm3 of solution containing different amounts of acidified thiourea and ferric ion as oxidant The slurry was agitated with a magnetic stirrer at various agitation speeds Various factors such

v116n12a9 Extraction of copper and gold from anode slime ,

recovery of copper and gold from anode slime by solvent extraction and leaching This process has to be carried out at the optimum operating conditions, and also economically, for possible scale-up 268542-1923$9,86!7$1 The copper anode slime of Sarcheshmeh Copper Complex was used in this study, and the reagents (sulphuric acid 88%.

Palabora Mining Company Ltd

Anode slimes product is a by-product of the electro-refining process and consists of the insoluble impurities from the anode that fall to the bottom of the refining cell The anode slimes are recovered from the refining cells, are dried in an oven and processed by a metals by-product plant

Copper Anode Slime Recovery-Copper- - Metalcess

Anode slime is a byproduct from copper or lead electro-refining process The copper/lead anode slime usually contain As, Sb, Bi and precious metals like gold and silver Smelter of anode slime is most likely divided into two groups by the two different recovery processes based on its property and treatment capacity, ie pyrometallurgy and .

Electrowinning - Wikipedia

Electrowinning, also called electroextraction, is the electrodeposition of metals from their ores that have been put in solution via a process commonly referred to as leaching Electrorefining uses a similar process to remove impurities from a metal Both processes use electroplating on a large scale and are important techniques for the economical and straightforward purification of non .

Removal of Arsenic and Antimony from Anode Slime by ,

Mar 29, 2011· Anode slime is an important material of recycling precious metals Up to now, treating the arsenic- and antimony-rich anode slime by conventional processes has the following problems: its economic and environmental effect is less than satisfactory, and the removal effect of arsenic and antimony from anode slime in present processes is not all that could be desired

MINATAUR™: the Mintek alternative technology to

anodes are cast for electrorefining to produce 9999 per cent silver granul Gold anode slimes formed during silver electrorefining are recycled to the Minataur™ leaching step for recovery Typical operating conditions and performance of the leaching step as performed at Harmony Gold Refiners1 is ,

Anode Slime Gained During Electrolysis Process of ,

cells during the refining of copper [5] The anode slime is the unsoluble portion of the anode and as fine material falls to the bottom of the cell These slimes contain significant quantities of gold and silver as well as variable amounts of Cu, Ni, Pb, As, Sb, Bi, Te and platinum group metals [2,3] .

A Novel Process For Recovery Of Te And Se From Copper ,

In pressure oxidation leaching of copper anode slimes, more than 65% of the tellurium is co-extracted during decopperizing About 10 – 15% of the selenium is also dissolved imultaneously by severe leach conditions Current operation for the treatment of the leachate is to constantly recirculate the leach solution through a bed of copper turnings

"Processing of copper refinery anode slimes" by Shrirang ,

"A study of commercial copper refinery anode slimes has been conducted to evaluate the separation of valuable metals contained in the slim The slimes contain substantial quantities of Ag, Sn, Au, Pb, and Cu The values were present principally as AgCl, SnO2, Au, PbSO4, Cu and CuSO4 A Roast-Leach-Roast-Leach (RLRL) technique solubilized up to 91 pct of the Ag and 99 pct of the Cu from raw .

Tellurium Data Sheet - Mineral Commodity Summaries 2020

from anode slimes collected from electrolytic copper refining, and the remainder was derived from skimmings at lead refineries and from flue dusts and gases generated during the smelting of bismuth, copper, and lead-zinc or Potential sources of tellurium include ,

Recovery of Silver and Gold from Copper Anode Slimes ,

Sep 11, 2014· Copper anode slimes, produced from copper electrolytic refining, are important industrial by-products containing several valuable metals, particularly silver and gold This article provides a comprehensive overview of the development of the extraction processes for recovering silver and gold from conventional copper anode slim Existing processes, namely pyrometallurgical processes .

Palabora Mining Company Ltd

19 行· Anode slimes product is a by-product of the electro-refining process and consists of the ,

Identification and Description of Mineral Processing ,

Generally, 30-80 percent of the selenium contained in copper anode slimes is recovered by commercial operations Several methods of selenium recovery may be used The two major processes for selenium recovery are smelting with soda ash and roasting with soda ash Other methods include roasting with fluxes, during which the

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