Where gold is associated with arsenic, antimony, tellurium, and certain other minerals, it is often only partly soluble in cyanide solution. The difficulty is usually more of a physical than a chemical one but special methods of treatment may be required. ... Gold Extraction from Carbonaceous Ore. The so-called "graphite" or carbonaceous ...
Orogenic antimony-gold deposits contribute significantly to the global antimony resource base. China's orogenic antimony-gold deposits are primarily in southern Tibet. Investigations indicate that antimony combines and migrates with sulfur hydroxides in ore-forming fluids. Previous research on fluid inclusions in orogenic …
To eliminate the adverse effect of antimony on extracting of gold in matte smelting process from Sb-bearing refractory gold ores, the sodium sulfide leaching method was proposed to selectively remove antimony in advance. ... It has been testified by some practice process that this type of arsenic-antimony gold ore can be efficiently treated in ...
The main objective of this experimental work — conducted at laboratory scale — was to develop an innovative process, involving an alkaline chemical pretreatment and a conventional treatment for gold extraction from refractory Sb 2 S 3 ores, using cyanide as lixiviant w6,7,13x used in a standard procedure Žcyanidation, gold ...
The pretreatment of an antimonial refractory gold and silver ore was investigated using alkaline sulphide leaching. The ore assayed 20 g/t Au and 220 g/t Ag and contained predominantly quartz/clay and barite, and to a lesser extent, sulphides such as pyrite, stibnite, sphalerite, zinkenite (Pb 9 Sb 22 S 42) and andorite (Sb 3 PbAgS …
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 …
Hydrochloric acid concentration system of ozone leaching refractory gold ore is a kind of efficient and environmentally protection clean metallurgy process. ... High antimony extraction (93.75% ...
a sequential approach, starting with the removal of antimony materials followed by the gold extraction [7,8]. However, gold–antimony ores often exhibit a refractory behavior due to the association of gold with sulfides, such as antimonite (Sb2S3), pyrite (FeS2), and arsenopyrite (FeAsS). The presence of fine gold in rock …
Antimony is a strategic critical mineral that is used in all manner of military applications, including the manufacture of armor piercing bullets, night vision goggles, infrared sensors, precision ...
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 ...
Preparation of Antimony Sulfide and Enrichment of Gold by Sulfuration–Volatilization from Electrodeposited Antimony. Electrodeposited antimony …
However, antimony extraction was still low due to solid product formation. Muravyov (2019) conducted a two-stage (ferric leaching and bioleaching by Sulfobacillus bacteria) dissolution process for extracting gold from sulfidic minerals such as stibnite. The results showed that the final oxidation levels of arsenopyrite and sulfidic sulfur were ...
The Consolidated Murchison ore contains antimony which, during gold extraction, is thought to act as an oxygen scavenger (Monhemius, 1987), while increasing both cyanide and lime consumption.
An integrated two-stage metallurgical process has been developed to process concentrates from the Olimpiadinskoe deposit, which contain high levels of antimony and arsenic. The optimal parameters for the alkaline sulfide leaching process of the initial concentrate from the Olimpiadinskoe deposit were determined to achieve the maximum …
For a high calcium low antimony–gold concentrate (Ca–Sb–Au ore), this study proposed to pre-remove antimony using slurry electrolysis in HCl–CaCl2 system. The results indicated that the optimal conditions were CaCl2 300–350 g/L, electric quantity 1.2 times, HCl 30 g/L, time 3.5 h, and temperature 60 °C. The leaching efficiency of ...
Detailed mineralogical characterization of the Akoluk gold-silver ore has indicated that the ore contains antimony sulfides, including andorite (Sb 3 PbAgS 6 ) and zinkenite (Pb 9 Sb 22 S 42 ), as ...
Gold and antimony are associated in a number of gold ores with resulting complications in the gold extraction process. The principal mineralogical forms, in which gold occurs in these ores are metallic gold, free-milling, or associated with silicate gangue, as metallic gold associated with stibnite [Sb 2 S 3] will be seen from the processes used …
Potassium hydroxide alkaline pretreatment of a refractory gold–silver ore containing 20 g/t Au and 220 g/t Ag was investigated with the purpose to evaluate its effectiveness on the extraction of gold and silver.The presence of antimony minerals such as stibnite (Sb 2 S 3), zinkenite (Pb 9 Sb 22 S 42) and andorite (Sb 3 PbAgS 6) is the …
Preparation of Antimony Sulfide and Enrichment of Gold by Sulfuration–Volatilization from Electrodeposited Antimony. Electrodeposited antimony can be treated with sulfuration–volatilization technology, which causes antimony to volatilize in the form of antimony sulfide. During this process, gold is enriched in the….
Moreover, China's antimony ore mining accounted for 52% of the world's antimony mining in 2020, with extraction of antimony ores also ranking first in the world . With the increasing development of …
The clean production process for extracting antimony from refractory gold ore involves sodium sulfide leaching, pressure oxidation, concentration, and crystallization steps. First, the stibnite in the refractory gold ore reacts with sodium sulfide, and …
The pretreatment of an antimonial refractory gold and silver ore was investigated using alkaline sulphide leaching. The ore assayed 20g/t Au and 220g/t Ag and contained predominantly quartz/clay ...
Therefore, processing these complex ores typically involves a sequential approach, starting with the removal of antimony materials followed by the gold extraction [7,8]. However, gold–antimony ores often exhibit a refractory behavior due to the association of gold with sulfides, such as antimonite (Sb 2 S 3 ), pyrite (FeS 2 ), and ...
Antimony Metallurgy. Antimony metallurgy is the technology that extracts antimony metal from antimony ores or produces antimony compounds. Antimony was discovered in the ancient time, and its name was derived from antimonite. In 1604, a process was invented to extract antimony and antimony sulfide as described by B. …
It can be seen from Eq. () that Sb 2 S 3 is deposited on the surface of gold particles, forming a dense product layer and hindering the diffusion of CN − and O 2 to …
a sequential approach, starting with the removal of antimony materials followed by the gold extraction [7,8]. However, gold–antimony ores often exhibit a …
Therefore, processing these complex ores typically involves a sequential approach, starting with the removal of antimony materials followed by the gold …
In the process of BF volatilization smelting-electrolysis of gold-antimony alloy, the dried briquettes of antimony-gold ore, lime, and coke were smelted in the blast furnace where more than 90% of antimony was volatilized to crude antimony oxide and about 10% antimony metal stayed in the BF, as a gold carrier. ... Lin, H.K. Extraction of ...
DOI: 10.1016/J.HYDROMET.2019.04.026 Corpus ID: 150110101; Extracting antimony from high arsenic and gold-containing stibnite ore using slurry electrolysis @article{Yonglu2019ExtractingAF, title={Extracting antimony from high arsenic and gold-containing stibnite ore using slurry electrolysis}, author={Zhang Yonglu and Chengya …