recovery gold copper ore contain gold copper

Copper extraction - Wikipedia

contains 25.7% copper, 28.1% ... Processing of gold ores has become a site-specific choice of techniques and processes, depending upon mineralogical, chemical, physical, and …

recovery gold copper ore contain gold copper

Jan 01, 2016· Today, flotation is commonly used in the processing of primary copper–gold ores to produce a copper concentrate containing gold as a co-product, where the gold is recovered as a byproduct of copper smelting and refining (La Brooy, 1992). The gold is usually discrete and either free, associated with copper sulfides or associated with iron ...

Size dependent gold deportment in the products of copper ...

Jan 21, 2016· The high copper content of the ores makes it difficult to extract gold from them by direct cyanidation. An analysis of the literature data indicated that ammoniacal leaching might be one solution to this problem. It is shown that the use of ammonia compounds in the cyanidation cycle makes it possible to obtain high indices for gold recovery ...

A Review of the Recovery of Gold and Silver From Copper ...

contains 25.7% copper, 28.1% ... Processing of gold ores has become a site-specific choice of techniques and processes, depending upon mineralogical, chemical, physical, and metallurgical factors ...

Gold-Copper Ores - ScienceDirect

Commercial porphyry copper ores usually contain copper grades between 0.5% and 2%1. Minor amounts of gold are often present in these orebodies2. The concentration of gold in the majority of large-scale copper/gold ores is low, typically around 1-2 g/t3,4. Flotation is the principal method of pre-concentration for copper and gold5,6. Thus ...

A review of copper cyanide recovery technologies for the ...

GOLD RECOVERY FROM COPPER-RICH ORES EMPLOYING THE PUROLITE S992 GOLD-SELECTIVE ION EXCHANGE RESIN 2 INTRODUCTION A typical flowsheet[1,5,8] that incorporates the SART process to recover copper from gold/copper ores after cyanidation, is illustrated in Figure 1 as Current Flowsheet . This type of process was

USA - Method for recovery of precious metals from ...

CYANIDATION OF COPPER CONTAINING GOLD ORES Due to the dwindling resources of simple cyanide extractable gold deposits, a large proportion of the gold processed in the 21st century will be recovered from complex gold ores, many of which will contain copper minerals. It has been estimated that about 20 % of all gold deposits have significant

A Review of the Recovery of Gold and Silver From Copper ...

Precious metals such as gold and silver are recovered from difficult-to-treat ores, particularly those containing manganese, by lixiviating using an ammonium thiosulfate leach solution containing copper, sufficient ammonia to maintain a pH of at least 7.5, and at least 0.05% sulfite ion.

(PDF) Treatment of a Copper-Rich Gold Ore by Ammonia ...

Commercial porphyry copper ores usually contain copper grades between 0.5% and 2%1. Minor amounts of gold are often present in these orebodies2. The concentration of gold in the majority of large-scale copper/gold ores is low, typically around 1-2 g/t3,4. Flotation is the principal method of pre-concentration for copper and gold5,6. Thus ...

Copper ores - Danafloat

Sep 28, 2020· Gold recently hit all-time highs of $2,000 per ounce, which may help some B.C. copper miners, since many of the copper deposits here also contain some gold and silver. Copper miners can sell off ...

A REVIEW OF COPPER CYANIDE RECOVERY FOR THE …

GlyCat™ is the application of Glycine with cyanide to mixed base metal and precious metal ores. The presence of copper minerals in with gold is known to lead to many challenges during the cyanidation of gold ores, such as high consumption of cyanide with low gold extraction and undesirable impacts on gold recovery during the downstream processes.

Gold-copper ores - ScienceDirect

In the early stages of the operation the overall gold recovery achieved averaged 61% and copper recovery was 74%. The plant was experiencing problems in the leach, adsorption, elution and electrowinning sections mainly as a result of the presence of copper in the ore.

(PDF) Recovering gold from copper concentrate via the ...

In the early stages of the operation the overall gold recovery achieved averaged 61% and copper recovery was 74%. The plant was experiencing problems in the leach, adsorption, elution and electrowinning sections mainly as a result of the presence of copper in the ore.

Size dependent gold deportment in the products of copper ...

Dai, X. and Simons, A. and Breuer, P. 2012. A review of copper cyanide recovery technologies for the cyanidation of copper containing gold ores.

Gold Recovery : 8 Steps (with Pictures) - Instructables

Gold ores containing high levels of cyanide-leachable copper minerals, such as covellite, chalcocite, bornite, malachite, azurite, and cuprite have traditionally been difficult to treat economically.

Leaching Stubborn Oxidized Gold Ores That Contain Copper ...

Precious metals such as gold and silver are recovered from difficult-to-treat ores, especially those containing manganese and/or copper, by lixiviating the ores using copper-ammonium thiosulfate in which the pH of the lixiviating solution is maintained at a minimum level of 9.5 in order to inhibit the action of metallic iron and its ferric salts that are present in the solution and …

Recovering Gold from Copper Concentrate via the ...

Jan 01, 2012· 1. Cyanidation of copper containing gold ores. Due to the dwindling resources of simple cyanide extractable gold deposits, a large proportion of the gold processed in the 21st century will be recovered from complex gold ores, many of which will contain soluble copper minerals.

Continuous Vat Leaching (CVL) & Glycine Leaching ...

Gold ores containing high levels of cyanide-leachable copper minerals, such as covellite, chalcocite, bornite, malachite, azurite, and cuprite have traditionally been difficult to …

Gold cyanidation - Wikipedia

Pregnant leach solutions (PLSs) obtained from cyanide leaching of gold/silver ores often contain gold as well as other impurities such as copper (Bas et al., 2012 and 2015). The selectivity of …

Copper rally could prompt Mount Polley restart - MINING

Precious metals such as gold and silver are recovered from difficult-to-treat ores, especially those containing manganese and/or copper, by lixiviating the ores using copper-ammonium thiosulfate in which the pH of the lixiviating solution is maintained at a minimum level of 9.5 in order to inhibit the action of metallic iron and its ferric salts that are present in the solution and which ...

(PDF) Cyanidation of gold ores containing copper, silver ...

A typical copper sulphide ore contains various levels of iron sulphide types that generally include pyrite (FeS2) and pyrrhotite (Fe1-xS). Often gold and silver are present which may either be associated with the sulphides or are free. The gangue particles can consist of a …

A review of copper cyanide recovery technologies for the ...

From a gold ore containing copper, the study selected four samples containing 0.22%, 0.55%, 1.00% and 1.36% of copper. For direct cyanidation of the ore without pre-treatment, copper extraction by ...

17 - Flotation of Gold Ores

Jul 01, 2010· Cyanidation of gold ores containing copper, silver, lead, arsenic and antimony ... The results showed that cyanidation method was efficient with 95.21% gold recovery with following conditions: d80 ...

A review of copper cyanide recovery technologies for the ...

Jul 01, 2010· Cyanidation of gold ores containing copper, silver, lead, arsenic and antimony. ... R.W. Lawrence, A. BruynesteynBiological pre-oxidation to enhance gold and silver recovery from refractory ores and concentrates. CIM Bulletin, 76 (857) (1983), pp. . Google Scholar.