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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 …
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"Antimony resources are rich in china, its reserves and productions are ranking the first in the world. The Chinese antimony mineral resources are mainly existed in the form of three types, such as stibnite, antimony-gold ores andjamesonite. The antimonial dust that produced from lead smelting process is an important secondary …
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Arsenic-alkali residue is a solid waste produced by the antimony smelting industry, which can pose a threat to the environment and human health. The common wet treatment process of arsenic-alkali residue has a low recovery of valuable elements, incomplete separation of arsenic and alkali, and also produces arsenic-alkali mixed salt, …
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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 …
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The antimony industry in China evolved from the smelting process dominated by reduction roasting to the pyrometallurgical and hydrometallurgical processes dominated by volatilization roasting–reduction smelting, developed a set of advanced mining, processing, and smelting processes such as wall filling (hydraulic prop roof …
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The removal of antimony from antimony dust captured during the direct …
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Therefore, the reaction mechanism and multi- phase distribution behavior of antimony in the smelting process need to be investigated to dissolve antimony in the slag while arsenic volatilizes into Corresponding author: Qin-meng WANG, Tel: +86-731-88876255, E-mail: [email protected] DOI: 10.1016/S1003-6326(22)66082-5 1003 …
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Simple, efficient process. Electrolysis is much more efficient than traditional heat-based smelting methods, because it is a single-step continuous process, Sadoway explains. The discovery of that process is what transformed aluminum, more than a century ago, from a precious metal more valuable than silver into a widely used inexpensive …
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However, the antimony element is more difficult to remove during the matte smelting process, accordingly, a large amount of antimony compounds may seriously affects the lining life of the pyrometallurgical system, and has a continuous negative impact on subsequent valuable metal recovery (Artzer, 2018, Selivanov et al., 2019). Thus, it is ...
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Recognizing the imperative to address global climate change and promote sustainable development within the industry, the conventional antimony smelting process, characterized by high energy consumption and pollution, is confronted with escalating ecological and environmental pressures. This study proposes a two-stage method for …
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Using this treated antimony oxide powder in the traditional antimony …
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The study of the contamination patterns and characteristics of Sb and As in the soils of the legacy contaminated sites of antimony smelters is important for the redevelopment and utilization of industrial sites. In this study, 13 heavy metals were determined in the soil and plants of an antimony smelter in Gansu Province to study the …
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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 based on reduction smelting, alkaline refining, and oxidation to extract antimony from antimony dust and produce Sb 2 O 3 with a purity above 99.8 % .
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In this study, a combined process of acidic oxidation leaching and SO 2 reduction was proposed to purify crude As 2 O 3 recovered from antimony smelting arsenic-alkali residue. The effects of various process factors on crude As 2 O 3 leaching were investigated based on the thermodynamic analysis. The results showed that the …
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A large amount of solid waste has been produced by the antimony smelting …
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Recognizing the imperative to address global climate change and promote sustainable …
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In these processes, however, antimony smelting at high temperature causes (1) serious environmental pollution during roasting and smelting, since abundant antimony sulfide, some relevant low-boiling-point metals (e.g., lead, arsenic and cadmium), and a little SO 2 are emitted through volatilization, and (2) large energy consumption, …
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In the process of antimony smelting, Na 2 CO 3 is used to remove the impurity arsenic, and it produces arsenic alkali slag. The main components of arsenic alkali slag are Na 3 SbO 4, Na 3 SbO 3, Na 3 AsO 4, NaAsO 2. The main generation chemical reactions are as follows (Tian et al., 2021).
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In the process of antimony smelting, the refining of crude antimony often use Na 2 CO 3 to remove arsenic (Peng, 2013). Therefore, it is considered to convert NaHCO 3 products recovered from the arsenic-alkali solution into Na 2 CO 3 product in this study, which can be used as an arsenic removal reagent to return to the refining …
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The lack of advanced technology in antimony mining and smelting has …
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Arsenic-alkali residue is a hazardous waste produced by the refining process of crude antimony in antimony smelting, and contains highly toxic sodium arsenate and a large number of residual alkali. In this study, aiming at the problems of the low recoveries and incomplete separation of arsenic and alkali, the secondary pollution of arsenic-alkali …
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A significant amount of dust (generated during smelting process inside …
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There are two main types of modern antimony production methods—pyrometallurgy and hydrometallurgy [1,2,3].At present, the former is the main. The vast majority of antimony smelting enterprises have been using the traditional blast furnace volatile–reverberatory furnace reduction process, which is of low environmental …
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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. ... Compared with the natural source ...
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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. At present, most of these solid wastes are currently in storage, and the storage of a large amount of solid wastes is not only harmful to the local ecological …
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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 gasification process for purifying antimony and recovering precious metals from noble antimony. Saturated vapor pressure and separation coefficients (β) were used to …
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Antimony is classified as a critical/strategic metal. Its primary production …
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In order to investigate the release process of antimony from stibnite under the leaching effect of rain and snow in Hunan Xikuangshan(XKS) mining area, some important environmental factors are selected: dissolved oxygen, Fe(III) and Pseudomonas sp. AO-1 (referred to as AO-1). The one-factor batch sequence experimental method is …
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Summary This chapter contains sections titled: Introduction Stibnite …
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The process of sinter + blast furnace reduction—reverberatory refining—is utilized for metal antimony smelting. With regard to such process, amounts of smelting slag are produced during blast furnace reduction. However, the treatment of such antimony smelting slag will cost a lot. Therefore, such quantities of smelting slag are stored.
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