Total oxidized sulfur reached 90.6%, while only 10.4 % of the sulfur was released, and chlorine release was 49.5%. In addition, water leaching was conducted to investigate the extraction rate of metals after roasting. ... Accordingly, the optimized process results are determined as follows: the extraction rates of antimony and gold …

Keywords: stibnite concentrate; extraction of antimony; reductive sulfur-fixing smelting; low-temperature; molten sodium salt 1. Introduction China has abundant reserves of antimony resource and it's also the largest producer of antimony in the world. Generally, the technologies for producing antimony mainly comprise

Bench-scale experiments of antimony extraction from stibnite concentrate with goethite residue as sulfur-fixing agent validated that 85.7% of Sb was directly recovered as crude antimony bullion ...

The mechanisms of antimony extraction and zinc, iron, sulfur conservation was thermodynamically and experimentally investigated. The results show that iron- and zinc-bearing components in the ...

The results demonstrate that the sulfuration rate was the highest, namely 96.06%, when the molar ratio of sulfur to antimony was 3:1, the sulfur source temperature was 400 °C, the antimony source ...

A complete technological process for extracting antimony from refractory gold ore was proposed. Antimony can be selectively removed from refractory gold ore …

A new process for one-step extraction of antimony in low temperature from stibnite concentrate by reductive sulfur-fixation smelting in sodium molten salt,... This website uses cookies to ensure you get the best experience.

Several extraction techniques and processing routes for gold recovery are available, depending on the types of gold ore and its mineralogical characteristics (Marsden and House, 2006;Natarajan ...

The mechanisms of antimony extraction and zinc, iron, sulfur conservation was thermodynamically and experimentally investigated. The results show that iron- and zinc-bearing components in the goethite residue firstly reacted and releasing Fe x O y and ZnO, then stibnite (Sb 2 S 3) quickly converted to senarmontite (Sb 2 O 3) in the …

1 Citations. Part of the book series: The Minerals, Metals & Materials Series ( (MMMS)) Abstract. It is well known that the gold ores containing a high content of …

Bench-scale experiments of antimony extraction from stibnite concentrate with goethite residue as sulfur-fixing agent validated that 85.7% of Sb was directly recovered as crude antimony bullion ...

Alkaline sulfide leaching was used (Na 2 S/NaOH) to extract antimony from the ore, which was then electrodeposited as antimony metal. Using this approach, …

The antimony extraction rate was calculated using the relation (1) ... In the SE treatment of the As-Au-Sb ore, antimony and arsenic were effectively separated to produce cathode metal antimony in a single step. The sulfur present in stibnite was transformed into elemental sulfur remaining in the residue.

Semantic Scholar extracted view of "One-step extraction of antimony from low-grade stibnite in Sodium Carbonate – Sodium Chloride binary molten salt" by Ye Longgang et al. ... The molten salt metallurgy of Sb, which involves the smelting of stibnite in a binary NaCl-Na2CO3 salt with sulfur-fixing and the addition of a reductant, has been ...

@article{Longgang2019SulfurFA, title={Sulfur fixation and reduction roasting of stibnite for clean extraction of antimony by a combined metallurgy and beneficiation process}, author={Ye Longgang and Zhen Ouyang and Yifeng Chen and Yong-ming Chen and Li Xiao}, journal={Minerals Engineering}, year={2019}, volume={144}, …

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 …

Depending on the grade of antimony in the concentrate, different pyrometallurgical methods can be used to extract antimony . ... Yang et al., for example, developed a low-temperature sulfur-fixing smelting process, using a NaOH–Na 2 CO 3 flux with ZnO to fix the sulfur as ZnS. This approach reduces SO 2 emissions ...

Bench-scale experiments of antimony extraction from stibnite concentrate with goethite residue as sulfur-fixing agent validated that 85.7% of Sb was directly recovered as crude antimony bullion ...

A sulfur dioxide free method for antimony extraction featured of low-temperature (around 800 °C) roasting was proposed. • The sulfur-fixing and roasting reactions of Sb 2 S 3 are verified including two steps.. Metallic Sb was yielded at the temperature of 800 °C completely.

The effect of sulfur on the thermoplasticity of antimony-containing C-Mn steel at 700–1100 °C was examined using a Gleeble 1500 thermodynamic simulation device (Gleeble, Poestenkill, NY, USA). Area reduction (RA%) was used to evaluate the thermal ductility. The 0.16 mass % Sb extended the range of the ductile grooves, …

The detailed phase transformations and microstructural evolution mechanisms during antimony extraction and sulfur fixation process were investigated. The results show that stibnite (Sb 2 S 3) can quickly transform to senarmontite (Sb 2 O 3) in the presence of Fe 2 O 3 and Na 2 CO 3, and then Sb 2 O 3 will be continuously …

A new process for one-step extraction of antimony in low temperature from stibnite concentrate by reductive sulfur-fixation smelting in sodium molten salt, using iron oxide as sulfur-fixing agent ...

2 Sulfur is needed for the production of sulfuric acid. Two of the major sources of sulfur are underground deposits of the element sulfur, sulfur compounds from natural gas and petroleum. (a) ... The extraction of antimony is similar to that of zinc.

On the other hand, some antimony oxides (Sb 2 O 3 and Sb 2 O 4) in the mixture were reduced to metallic antimony, accompanied by a small amount of single sulphur into antimony mattes, which were separated by volatilization and antimony mattes, and the separation and extraction of antimony in antimony concentrate were …

Extraction of Antimony from Primary. Resources: Current Practices and. Evolving Processes. Processes 2022, 10, 1590. https://doi/10.3390/ pr10081590. …

Chemical reactions at the interface between the perovskite and hole transport layer limit the performance of inverted solar cells. Li et al. insert a p-type antimony-doped tin oxide layer that ...

Slurry electrolysis was also presented to extract antimony from high arsenic and gold-containing stibnite ore to produce cathode metal antimony (Zhang et al., 2019). In general, hydrometallurgical methods are more environmental-friendly, and can be conducted in either alkaline or acidic systems. ... sulfur and arsenic in the ore were ...

Abstract. 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 residue, thereby …

the subsequent process of Sb extraction. a. Awe [12-13] investigated recovering metallic antimony from the copper and sulfur concentrate containing antimony by selective leaching in alkaline sulphide solution. Yang [14] investigated separation and recovery of Sb from stibnite using SbCl 5-HCl as a leaching reagent and it was …

The experimental results obtained show that 92.6% of antimony was extracted and enriched into crude antimony bullion as primary product at the …