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A selective process for extracting antimony from ...

2017-5-1  To avoid the adverse effects of antimony on gold extraction, a clean production process for removing and recovering antimony from refractory gold ore is proposed. The complete process flowsheet is shown in Fig. 2. First, the antimonial refractory gold ore is leached in alkaline sodium sulfide solution.

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Extracting antimony from high arsenic and gold

2019-6-1  Antimony extraction reached over 98%, the average extraction of Fe, As, and Au were 5.50%, 1.14%, and 0.63%, respectively. Gold and aresenic remained in the leaching residue, which was further used as a raw material for gold extraction. Thus, the separation of antimony from gold

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Selective extraction of arsenic and antimony from gold ...

2021-4-1  During the gold production process, the coexistence of arsenic and antimony will increase the consumption of CN −, OH − and O 2, and produce precipitates coated on the surfaces of gold particles so as to decrease the efficiency of gold extraction (Eisler, 2004; Yang et al., 2017).

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Treatment of Antimonial Gold Ores - ScienceDirect

2016-1-1  The association of gold and antimony in many ores provides additional complications in the gold extraction process. Improvements in mineralogical identification and understanding of the chemistry of the cyanidation process with antimony present are leading to improved treatment processes for antimonial gold ores.

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Extracting antimony from high arsenic and gold

2019-6-1  gold and arsenic were retained in the residue as a raw material for further gold extraction. The antimony content in the cathode antimony was >98%, and arsenic content was less than or equal to 0.21%. The As-Au-Sb ore consisted of stibnite (Sb2S3 ...

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Process Flow-Sheet for Gold and Antimony Recovery from ...

Despite the preliminary extraction of antimony from the flotation concentrate, gold recovery remains at a fairly low level and, according to various data, does not exceed 30-40% [ [6]].Gold ...

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Selective extraction of arsenic and antimony from gold ...

2021-1-6  In gold smelting industry, coexisting of arsenic (As) and antimony (Sb) in gold-bearing sludge is a serious issue for the smelting process. This study employed a two-stage leaching methods to selective extract arsenic and antimony from gold-bearing ...

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Improved gold and silver extraction from a refractory ...

2011-1-1  Similarly, gold extraction improved from 49% to 55–78% after the pretreatment. The highest extraction of silver (87%) was recorded to occur with 4.1 mol/L Na 2 S and 2.0 M NaOH . The extraction of silver and gold tended to improve with increasing the concentration of Na 2 S at fixed concentrations of NaOH . It can be inferred from these ...

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(PDF) Leaching of Antimony from a Refractory Precious ...

This prompted use of a noncyanide method for gold recovery using the sulfur produced. ... In addition, the antimony extraction increased from 23.73% to 43.10%. View full-text. Article.

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Cyclone Electrowinning of Antimony from Antimonic Gold ...

2018-1-6  Recently, CE was proven effective for the treatment of antimonic gold concentrates. The experimental results of cyclone electrowinning of antimony show the current efficiency increases from 43.8 to 72.2% with the increasing current density (from 254.8 to 647.3 A/m 2 ), and on the other hand, power consumption per ton antimony decreases from ...

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Extracting antimony from high arsenic and gold

2019-6-1  gold and arsenic were retained in the residue as a raw material for further gold extraction. The antimony content in the cathode antimony was >98%, and arsenic content was less than or equal to 0.21%. The As-Au-Sb ore consisted of stibnite (Sb2S3 ...

More

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 ...

More

Elaboration of Ecologically Save Technology for

2017-8-3  The technology based on vacuum-thermal processes allows not only extraction of gold but also production of associated materials—antimony sulfide (Sb2S3) and metallic antimony (Sb). The paper presents theoretical as well as applied research. Kinetics of the process of antimony sulfide extraction from the ores was studied for different fractions.

More

(PDF) Leaching of Antimony from a Refractory Precious ...

This prompted use of a noncyanide method for gold recovery using the sulfur produced. ... In addition, the antimony extraction increased from 23.73% to 43.10%. View full-text. Article.

More

US1964781A - Process for separating gold and antimony ...

US1964781A US479075A US47907530A US1964781A US 1964781 A US1964781 A US 1964781A US 479075 A US479075 A US 479075A US 47907530 A US47907530 A US 47907530A US 1964781 A US1964781 A US 1964781A Authority US United States Prior art keywords antimony mass temperature gold contained Prior art date 1930-01-27 Legal status (The legal status is an assumption and is not a

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Selection on the Process for Removing and Recovering ...

2017-2-7  Abstract. It is well known that the gold ores containing a high content of arsenic and antimony are very refractory. In this paper, the adverse effect of antimony on the extraction of gold by pretreatment-cyanide leaching was discussed in detail.

More

Cyclone Electrowinning of Antimony from Antimonic Gold ...

2018-1-6  Recently, CE was proven effective for the treatment of antimonic gold concentrates. The experimental results of cyclone electrowinning of antimony show the current efficiency increases from 43.8 to 72.2% with the increasing current density (from 254.8 to 647.3 A/m 2 ), and on the other hand, power consumption per ton antimony decreases from ...

More

LEACHING OF ANTIMONY-GOLD SLAGS Gold Refining

2012-10-6  I'm a slag leaching gold cyanide containing much antimony. The analysis of the solution give 0.265 g / lt. 3grs/lt gold and antimony. Antimony interferes with gold precipitation of zinc powder or the use of activated carbon. I think you could help me by suggesting a way to precipitate the antimony before precipitating gold.

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Antimony Recovery from End-of-Life Products and

2016-2-8  Antimony has become an increasingly critical element in recent years, due to a surge in industrial demand and the Chinese domination of primary production. Antimony is produced from stibnite ore (Sb2O3) which is processed into antimony metal and

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The Chemistry of the Extraction of Gold - SAIMM

2011-5-29  The Chemistry of the Extraction of Gold M.J. Nicol, C.A. Fleming and R.L. Paul 1S.1 General Principles 15.1.1 The chemistry of gold compounds Gold is the most noble of all the metals and this .is the key to both its eternal romance and its many practical uses in industry. It is the only metal, for

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A selective process for extracting antimony from ...

The SE selectively leached antimony, while gold and arsenic were retained in the residue as a raw material for further gold extraction. The antimony content in the cathode antimony was >98%, and ...

More

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 ...

More

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

More

Elaboration of Ecologically Save Technology for

2017-8-3  The technology based on vacuum-thermal processes allows not only extraction of gold but also production of associated materials—antimony sulfide (Sb2S3) and metallic antimony (Sb). The paper presents theoretical as well as applied research. Kinetics of the process of antimony sulfide extraction from the ores was studied for different fractions.

More

(PDF) Leaching of Antimony from a Refractory Precious ...

This prompted use of a noncyanide method for gold recovery using the sulfur produced. ... In addition, the antimony extraction increased from 23.73% to 43.10%. View full-text. Article.

More

Selection on the Process for Removing and Recovering ...

2017-2-7  Abstract. It is well known that the gold ores containing a high content of arsenic and antimony are very refractory. In this paper, the adverse effect of antimony on the extraction of gold by pretreatment-cyanide leaching was discussed in detail.

More

Cyclone Electrowinning of Antimony from Antimonic Gold ...

2018-1-6  Recently, CE was proven effective for the treatment of antimonic gold concentrates. The experimental results of cyclone electrowinning of antimony show the current efficiency increases from 43.8 to 72.2% with the increasing current density (from 254.8 to 647.3 A/m 2 ), and on the other hand, power consumption per ton antimony decreases from ...

More

LEACHING OF ANTIMONY-GOLD SLAGS Gold Refining

2012-10-6  I'm a slag leaching gold cyanide containing much antimony. The analysis of the solution give 0.265 g / lt. 3grs/lt gold and antimony. Antimony interferes with gold precipitation of zinc powder or the use of activated carbon. I think you could help me by suggesting a way to precipitate the antimony before precipitating gold.

More

(PDF) Gold Extraction and Recovery Processes For Internal ...

Gold Extraction and Recovery Processes Wong Wai Leong Eugene and Arun S. Mujumdar Minerals, Metals and Materials Technology Centre (M3TC) Faculty of Engineering, National University of Singapore Mar 2009 For Internal Use Only Not for General Distribution MINERALS, METALS AND MATERIALS TECHNOLOGY CENTRE (M3TC) NATIONAL UNIVERSITY OF SINGAPORE M3TC Report GOLD

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The Chemistry of the Extraction of Gold - SAIMM

2011-5-29  The Chemistry of the Extraction of Gold M.J. Nicol, C.A. Fleming and R.L. Paul 1S.1 General Principles 15.1.1 The chemistry of gold compounds Gold is the most noble of all the metals and this .is the key to both its eternal romance and its many practical uses in industry. It is the only metal, for

More

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