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cyanidation of gold ore containing antimony

(PDF) Cyanidation of gold ores containing copper, silver

Abstract. Cyanidation tests on two ore samples from two different gold deposits are reported. The first sample contained 10.5 ppm gold with high arsenic and antimony. The second sample had a

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(PDF) Cyanidation of gold ores containing copper, silver

2010-1-1  Cyanidation of gold ores containing copper, silver, lead, arsenic and antimony. Download. Improved gold and silver extraction from a refractory antimony ore by pretreatment with alkaline sulphide leach. By Haci Deveci and ibrahim alp. Implementation of sodium hydroxide pretreatment for refractory antimonial gold and silver ores.

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Cyanidation of gold ores containing copper, silver, lead

2010-7-1  Cyanidation tests on two ore samples from two different gold deposits are reported. The first sample contained 10.5. ppm gold with high arsenic and antimony.. The second sample had a low gold content (2.5 ppm) but a high silver content (160 ppm).The first series of test work focused on the determination of conditions for extracting gold from the samples ground to − 75

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Arsenic and Antimony Sulphide Minerals in Cyanidation

2014-9-17  The successful cyanidation of gold ores containing appreciable amounts of arsenic or antimony sulphide minerals such as orpiment, realgar,

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(PDF) Determination of the Leaching Parameters for a

Determination of the Leaching Parameters for a Refractory Gold Ore Containing Aurostibite and Antimony Minerals: Part II AD Zone January 2008 Minerals

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Bio-oxidation of refractory gold ores containing stibnite

2019-8-1  Similarly the bio-oxidation by an iron- and sulphur-oxidizing bacteria accounted for 91.4% gold extraction from a pyritic ore (20% S) as compared to 73.0% observed in the direct cyanidation of the same sample (Mubarok et al., 2017). Therefore, the bio-oxidation of these gold-antimony sulphide materials was successful.

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Evaluation of leaching parameters for a refractory gold

2009-8-1  The initial response of the ore to direct cyanidation is surprising, considering that ∼56% of the gold is in the form of aurostibite and that Mintek investigation indicated that only 53% of the gold is available to direct cyanidation, an additional 7% Au can be extracted using Carbon-In-Leach and 20% Au were included in sulphide minerals (Maharaj, 2006).

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Antimony Mobilization through Two Contrasting Gold Ore

2009-4-22  Antimony, a toxic metalloid similar to arsenic, is present at variable levels in most gold-bearing rocks. Antimony is soluble in the surface environment, so antimony (Sb) mobilization in mine waters is an environmental issue around gold mines. The Reefton gold mine was originally developed in gold-bearing quartz veins; Sb concentrations were low (<100 mg/kg)

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(PDF) Cyanidation of Refractory Gold Ores: A Review

2021-11-28  In this paper, the effect of the oxidative pretreatment and lead nitrate addition on the cyanidation of Zarshuran refractory gold ore containing 3.32

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A fundamental study of the alkaline sulfide leaching of

2015-12-27  sulfur containing streams are difficult to treat using cyanidation. In the present paper, the alkaline sulfide system was studied as an alternative to cyanide for recovering gold from elemental sulfur. It was found that the dominant lixiviant for gold in this system is sulfide, and polysulfide was ascertained to be the oxidant.

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Cyanidation of gold ores containing copper, silver, lead

Abstract Cyanidation tests on two ore samples from two different gold deposits are reported. The first sample contained 10.5 ppm gold with high arsenic and antimony. The second sample had a low gold content (2.5 ppm) but a high silver content (160 ppm). The first series of test work focused on the determination of conditions for extracting gold from the samples ground to − 75

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Basic theory and optimization of gold containing

2019-1-21  Gold containing antimony ore is a type of refractory gold in which gold is intimately associated with stibnite (Guo et al., 2017). When the traditional cyanidation method is used for gold extraction, thioantimonate by stibnite decomposition reacts with oxygen to form antimony acid salt, or antimony

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Cyanidation of gold ores c.pdf Free Download PDF Ebook

2018-6-15  International Journal of Mineral Processing 95 (2010) 68–77Contents lists available at ScienceDirect International Journal of Mineral Processing j o u r n a l h o m e p a g e : w w w. e l s ev i e r. c o m / l o c a t e / i j m i n p r o Cyanidation of gold ores containing copper, silver, lead, arsenic and antimony P. Karimi a,⁎, H. Abdollahi a, A. Amini b, M. Noaparast a, S.Z. Shafaei a

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(PDF) Determination of the Leaching Parameters for a

Determination of the Leaching Parameters for a Refractory Gold Ore Containing Aurostibite and Antimony Minerals: Part II AD Zone January 2008 Minerals and Metallurgical Processing 26(2):114-120

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Antimony Mobilization through Two Contrasting Gold Ore

2009-4-22  Antimony, a toxic metalloid similar to arsenic, is present at variable levels in most gold-bearing rocks. Antimony is soluble in the surface environment, so antimony (Sb) mobilization in mine waters is an environmental issue around gold mines. The Reefton gold mine was originally developed in gold-bearing quartz veins; Sb concentrations were low (<100 mg/kg)

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Cyanide Leaching Chemistry & Gold Cyanidation

2015-2-6  Cyanide Leaching Chemistry & Gold Cyanidation. The reactions that take place during the dissolution of gold in cyanide solutions under normal conditions have been fairly definitely established. Most agree that the overall

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Gold Cyanidation Process 911 Metallurgist

2016-6-8  The gold cyanidation process is the most important method ever developed for extracting gold from its ores. The reasons the widespread acceptance of cyanidation are economic as well as metallurgical. It usually

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Direct cyanidation and roasting combination of a semi

2015-8-1  In this study, cyanidation experiments were carried out on a massive sulfide ore sample, whose grades of the precious metals gold and silver were found to be 4.2 g/t and 311.9 g/t, respectively. Other elements in the ore were arsenic with average grade of 1,751.6g/t; antimony, 619.7 g/t; zinc, 781.4 g/t; copper, 454.6 g/t; lead, 101.8 g/t; mercury, 324.3 g/t; and

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(PDF) Cyanidation of Refractory Gold Ores: A Review

2021-11-28  In this paper, the effect of the oxidative pretreatment and lead nitrate addition on the cyanidation of Zarshuran refractory gold ore containing 3.32 ppm Au, 1.09% As, and 0.5% sulfur were

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A fundamental study of the alkaline sulfide leaching of

2015-12-27  sulfur containing streams are difficult to treat using cyanidation. In the present paper, the alkaline sulfide system was studied as an alternative to cyanide for recovering gold from elemental sulfur. It was found that the dominant lixiviant for gold in this system is sulfide, and polysulfide was ascertained to be the oxidant.

get price

(PDF) Determination of the Leaching Parameters for a

Determination of the Leaching Parameters for a Refractory Gold Ore Containing Aurostibite and Antimony Minerals: Part II AD Zone January 2008 Minerals and Metallurgical Processing 26(2):114-120

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Gold Cyanidation Process 911 Metallurgist

2016-6-8  The gold cyanidation process is the most important method ever developed for extracting gold from its ores. The reasons the widespread acceptance of cyanidation are economic as well as metallurgical. It usually

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gold cyanide leaching Xinhai

2021-9-14  02 Ore properties. Some gold-bearing ores should not be treated by the cyanidation leaching method directly, because the higher content of copper, arsenic, antimony, bismuth and other components in the ores will greatly increase the consumption of cyanide or consume the oxygen in the pulp, and reduce the gold leaching rate.

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Direct cyanidation and roasting combination of a semi

2015-8-1  In this study, cyanidation experiments were carried out on a massive sulfide ore sample, whose grades of the precious metals gold and silver were found to be 4.2 g/t and 311.9 g/t, respectively. Other elements in the ore were arsenic with average grade of 1,751.6g/t; antimony, 619.7 g/t; zinc, 781.4 g/t; copper, 454.6 g/t; lead, 101.8 g/t; mercury, 324.3 g/t; and

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(PDF) Cyanidation of Refractory Gold Ores: A Review

2021-11-28  In this paper, the effect of the oxidative pretreatment and lead nitrate addition on the cyanidation of Zarshuran refractory gold ore containing 3.32 ppm Au, 1.09% As, and 0.5% sulfur were

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MANUAL OF CYANIDATION BY HAMILTON Archives

2021-10-3  Ores containing silver in Arsenic and Antimony combinations offer considerable difficulties in cyanidation and it has usually been considered that the removal of these compounds by concentration was the only way to deal with them. G. H. Clevenger, however, when working on the ores of the Nipissing Mining Company of Ontario, Canada, found that by

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Establishing thE ProcEss MinEralogy of gold orEs

be recovered by whole-ore cyanidation, or some combination of flotation and cyanidation. Acceptable extraction of refractory gold can only be achieved by employing a pre-oxidation process prior to cyanide leaching. Antimony, bismuth sulfide and telluride gold ores: Antimony, bismuth sulfide and telluride gold ores are often somewhat

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含锑金矿预处理脱锑技术的研究进展

2020-9-1  Antimony-bearing gold ore is a common refractory gold ore.Gold is often wrapped in antimonite and other sulfide ores,due to the presence of antimony,the extraction rate of gold is often low when leaching by the traditional cyanide method.Removal of

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GLYCINE AS A LIXIVIANT FOR THE LEACHING OF LOW

2017-9-27  processing of low grade, c omplex ore bodies that contain impurities such as copper, arsenic, antimony, nickel and zinc which are detrimental to the cyanide process. Copper-containing gold ores are an important source of both copper and gold as they are obtainable in huge deposits in many countries throughout the world.

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G. DESCHÊNES Principal Engineer, Precious metals

Thiourea was used to leach gold from ore containing 0.4% Cu and 5.6 g/t Au. The parameters studied were acid pretreatment, leaching time, pH, thiourea concentration and

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