No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
Antimony smelting slag is produced from blast furnace during antimony oxides reduction. The slag composition of such antimony smelting slag is FeO–SiO 2 –CaO, and Pb, Zn, and Sb in slag appears as complicated oxides. In the antimony smelting slag, part of Pb exists in the form of PbS.
The phase transformation mechanism of antimony sulfide in the oxygen-enriched smelting system was investigated. The standard Gibbs free energy change (ΔG^θ) of reactions in the smelting system at 100 ~ 1400°C were calculated, indicating that the reaction between Sb_2S_3 and oxygen was liable to occur first, and that the high-valent antimony oxide …
Concentration techniques play a crucial role in increasing the antimony content in the ore before smelting. Here are some commonly employed concentration techniques for antimony extraction: 1. Gravity Separation. …
The main purpose of meltings the antimony raw materials is the transfer of the main substance of ore – antimony in a less contaminated by iron metal. Durcrudeing melting, …
Mo-tang and Gui-zhong proposed the BF volatilization-smelting route for the production of crude antimony oxide and antimony-copper matte to prevent the deportment of copper to crude antimony and subsequent refining …
Noble antimony is the carrier of precious metals in the antimony smelting system and has a very high added value. This study proposes a novel, green, and effective vacuum …
This study investigated soil microbial community in a typical gathering area of antimony mining and smelting in South China. The physical and chemical properties of different soils (mining waste dumps, flotation tailings, and smelting slag) and depths (0–20 cm, 40–60 cm, and 80–100 cm) were compared. The results showed that antimony (Sb) and arsenic (As) …
Current technological and market trends of antimony are presented. Extractive metallurgy for Stibnite ore processing is comprehensively discussed. Antimony purification and …
Electrolysis, or electrolytic refining, is a technique that is already in use for the extraction and purification of metals, and it is a much more cost-effective and efficient technique than traditional heat-based smelting methods. Indeed, it was the discovery of the Hall-Héroult electrolytic process …
AbstractCleaning of high antimony smelting slag from an oxygen-enriched bottom-blown was tested by direct reduction in a laboratory-scale electric furnace. The effects of added CaO, mass ratio of coal (experimental) to coal (theoretical) (ω) and the slag type on the reduction procedure were considered. The contents of Sb and Au were investigated. Iron contamination …
The production process of antimony produces a large amount of solid waste, such as waste rock in mining, tailings in the beneficiation, metallurgical slag in the smelting, and so on.
Soil samples were collected from an antimony smelting site in Guangxi Zhuang Autonomous Region, China, at four locations characterized by different land usage, including two cultivated sites: one ...
Antimony smelting is done through the pyrometallurgical process or the hydrometallurgical process, but mostly the pyrometallurgical process. This is mostly the …
The results showed that the release of antimony from smelting slag increased with a decrease in the solid-liquid ratio, and the maximum accumulated release was found to be 42.13 mg Sb/kg waste and ...
Antimony (Sb) and arsenic (As) co-contamination occurs in Sb smelting areas and is harmful to the surrounding ecological environment. The purpose of this study is to explore the spatial distribution characteristics of Sb and As in abandoned Sb smelting area and carry out risk assessments. Soil samples were collected from the smelting area profile and background …
The powdery crude antimony xide is reduced by a carbonaceous reductant in a reverberatory furnace at 1,000–1,200 °C to produce crude antimony. Crude antimony can be produced by the precipitation smelting process. The typical pyrometallurgical antimony production process using sulfide ore is shown in Fig. 1.
1. Introduction. Antimony (Sb) is a typical toxic and harmful heavy metal element; the United Nations health organization stipulates that the body's daily intake of antimony in water should be less than 0.86 mg/kg [1, 2].However, with the exploitation and utilization of antimony ore resources, a large amount of antimony slag is produced from antimony smelting and …
The waste products, historically produced by many antimony smelting companies around the pond and storage yard, mainly contain various waste rocks and roasting slag, as well as ore weathering ...
The loss and enrichment of heavy isotopes in the 0–10 cm and 10–25 cm layers of the antimony from smelting source in the polluted soil profile may be controlled by the adsorption process, while the enrichment of light isotopes in the 25–80 cm layer may be related to the reductive dissolution process. The conclusion emphasizes that the ...
It is important to mention that a silver-gold concentrate obtained by flotation has a high silver content. For example a concentrate assaying 1400 oz/t Ag and 8 oz/t Au can be smelted directly. The smelting process involves several operations, retorting, smelting and refining. Gold Alloys. The most known gold alloys are made with silver. The ...
Summary This chapter contains sections titled: Introduction Stibnite Antimony-Gold Ore Jamesonite Antimonial Dust Conclusion and Prospects Acknowledgements ... Development of Antimony Smelting Technology in China. Wei-feng Liu, Wei-feng Liu. School of Metallurgical Science and Engineering, Central South University, Changsha, 410083, China.
This study proposes a two-stage method for the efficient and thorough extraction of antimony through direct electrolysis from sulfide concentrate in molten salt. Our focus is on assessing the technical feasibility …
Local soils around the antimony smelting areas are polluted by fly ash emitted during smelting activities. Average antimony concentrations in three soil samples, collected from a mining area, were found to be 145, 720, and 6876 mg kg −1; which is well above the WHO recommended maximum permissible limit (35 mg Sb.kg −1). Also, the ...
The loss and enrichment of heavy isotopes in the 0-10 cm and 10-25 cm layers of the antimony from smelting source in the polluted soil profile may be controlled by the adsorption process, while ...
In this paper, the impurity elements such as arsenic, antimony and bismuth in the copper smelting process were used as research objects. By comparing and analyzing the actual production data, a preliminary understanding has been made of the distribution of arsenic, antimony and bismuth in different processes in the copper smelting. The results show that the distribution of arsenic, …
The extensive literature about the flash smelting process since the 1950s has mainly concentrated on overall chemistries of material flows in the furnace and the numerous equipment issues on the furnace and plant level.[5,6,7,8,9] Various descriptions of FSF and FCF reaction chemistry and its sequences in suspension have been given in several textbooks and …
rainfall, test experiments on the release of antimony from smeltingwasteslagwereconducted. The study investigated the cumulative leaching release characteristics of antimony smelting slag, the ...
The removal of antimony from antimony dust captured during the direct lead smelting process has been studied by Liu et al. They proposed a pyrometallurgical process …
The norank_c_Acidobacteria is one of the top five genera found in gold mining areas [56]. In the typical antimony ore smelting area in the south of China, at the genus level, the bioindicators ...
The MIT researchers were trying to develop a new battery, but it didn't work out that way. Instead, thanks to an unexpected finding in their lab tests, what they discovered was a whole new way of producing the metal …
