Investigation into the semi-dynamic leaching
Semantic Scholar extracted view of "Investigation into the semi-dynamic leaching characteristics of arsenic and antimony from solidified/stabilized tailings using metallurgical slag-based binders." ... to understand the immobilization mechanisms of antimony and arsenic and will also be of interest to the owners of the antimony ore processing ...
Study on the leaching behavior of antimony in stibnite …
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 …
Efficient Leaching Arsenic and Recovering Antimony from …
A method for removing arsenic (As) from high-As soot and recovering antimony (Sb) is proposed. The process consists of two stages: leaching As and Sb from high-As soot with sodium sulfide–sodium hydroxide; and adding aluminum (Al) sheet to the leachate to recover Sb, and treating the solution after recovering Sb by the lime …
The Impact of Physical Properties on the Leaching of …
1. Introduction. The exploitation of antimony by mining has created serious environmental pollution at a number of locations and has attracted international research interest in understanding the mechanisms driving impact [1,2,3,4].The waste produced by mining not only occupies large areas of land, but also causes lasting environmental pollution, …
Antimony Processing Plant, Antimony Separation Machine, Antimony …
In one of Xinhai's project, antimony content is 3.19%, among which the share of antimony sulfide is about 95.30%, and a small amount of antimony is existed in valentinite or antimonite, about 4.70%. Carbon content of the ore is 6.43%, in which the inorganic carbon have up to 5.46%, and is antimony sulfide with high-carbon and very complex for ...
How Arsenic, Antimony Silver Compounds Affects Leaching …
The silver occurred partly as sulphide, sulphantimonide and sulpharsenide and partly as metallic silver and dyscrasite, an alloy of silver and antimony in varying proportions. To accelerate the dissolution of the antimony and arsenic compounds J. J. Denny introduced a process that had for its object their decomposition in a preliminary …
Three Methods To Antimony Ore Beneficiation And Processing
Antimony is a non-renewable strategic mineral resource and an indispensable and important raw material for modern industrial development. With the high-intensity resource mining in recent years, the consumption of antimony resources is too large. Antimony beneficiation methods are important to improve the recovery rate of …
cil plant, cil gold mining, carbon in leach, cil gold leaching, …
Since its establishment 20 years, Xinhai has been committed to the Research and development of cyanide gold process, technology and equipment, after the constant study of Xinhai research technicians, Xinhai has formed a set of efficient, environmental, energy-saving and economic Xinhai gold CIL process.
Environmentally Friendly Leaching of Antimony from Mining …
Acid leaching involves using acidic solutions to dissolve antimony from its ores or concentrates. Sulfuric acid (H 2 SO 4) and hydrochloric acid (HCl) are commonly …
Toowong Process™ | Core Resources
The patented Alkaline Leaching (AL) process selectively leaches arsenic and antimony. Copper, lead and nickel are not solubilised (dissolved) in the process. ... suitable for treating whole of concentrate or a high arsenic bleed stream from a processing plant. The process also has application as an antimony recovery process for antimony mines.
The Impact of Physical Properties on the Leaching of …
This study reports on the assessment of the impact of antimony mine wastes from Xikuangshan (XKS) Antimony Mine in Lengshuijiang City, Hunan Province. We focus on the leaching of a number of potentially toxic elements (PTEs) from residues from the processing of antimony ore. The PTE content of ore processing waste and solutions …
Frontiers | Toxic effects of antimony in plants: Reasons and
Metal mining and pharmaceutical manufacturing are the primary sources of the toxic form of Sb [(Sb(V)] (Zhuang et al., 2018).Similarly, sewage sludge, emissions from the vehicle, leaching from plastic waste, industrial dumps, and direct infiltration from solid wastes are also important sources of Sb in the environment (Chu et al., 2021; Hu et al., …
Process flow-sheet for gold and antimony …
Antimony deposit was adherent to the cathode, being of good morphology, excellent quality and purity. The chemical alkaline pretreatment prior to the conventional leaching causes increase in gold recovery. Preliminary …
Antimony leaching from polyethylene terephthalate (PET) …
Microwave digestion revealed that the PET plastic used by one brand contained 213+/-35 mgSb/kg plastic; leaching of all the antimony from this plastic into 0.5L of water in a bottle could result in an antimony concentration of 376 ppb. Clearly, only a small fraction of the antimony in PET plastic bottles is released into the water.
Antimony, a pollutant of emerging concern: A review on …
The problem of antimony leaching from a polyethylene terephthalate bottle is very much different from the leaching of antimony from mining wastes. Each …
Improving plant adaptation to soil antimony contamination: …
This study aimed to investigate the alterations in biochemical and physiological responses of oat plants exposed to antimony (Sb) contamination in soil. Specifically, we evaluated the effectiveness of an arbuscular mycorrhizal fungus (AMF) and olive mill waste (OMW) in mitigating the effects of Sb contamination. The soil was …
Toxic effects of antimony in plants: Reasons and remediation …
Antimony (Sb) is a dangerous heavy metal (HM) that poses a serious threat to the health of plants, animals, and humans. Leaching from mining wastes and …
Investigation of Antimony in Natural Water and Leaching …
Antimony (Sb) is one of the trace hazardous compounds in drinking water. Recent studies demonstrated that polyethylene terephthalate (PET) bottles can release antimony into water. It is also found on natural environment such as groundwater and crustal rocks. The natural content of Sb in northern Gyeonggi province in South Korea …
Toxic effects of antimony in plants: Reasons and remediation …
Antimony (Sb) is a dangerous heavy metal (HM) that poses a serious threat to the health of plants, animals, and humans. Leaching from mining wastes and weathering of sulfide ores are the major ways of introducing Sb into our soils and aquatic …
Antimony, a pollutant of emerging concern: A review on …
The problem of antimony leaching from a polyethylene terephthalate bottle is very much different from the leaching of antimony from mining wastes. Each process necessitates custom-made treatment methodologies by taking into account various factors including the speciation and concentration. The current review is focused on this aspect.
Process flow-sheet for gold and antimony recovery from stibnite
1.. IntroductionGenerally, extraction and recovery of antimony are realised by pyrometallurgy, which involves the evolution of toxic gases into the atmosphere; several hydrometallurgical methods have been proposed [1], [2], [3].Different leaching agents can be used for treatment of stibnite (Sb 2 S 3) ore: mixture of hydrochloric and tartaric …
Leaching of Antimony from a Refractory Precious Metals Concentrate
Conditions for efficient sulfide-alkaline leaching process, ensuring high antimony extraction along with minimization of losses of gold in the solutions were determined: Eh from -0.8 to -0.6 V at ...
Antimony Leaching from Polyethylene Terephthalate (PET
The main sources of antimony causing its widespread pollution are the production of semiconductors and batteries, textiles, glass and ceramics and the action of coal-fired power plants and metal ...
Non-toxic, no-waste process technology for antimony …
Sulfuric acid leaching then takes out antimony, tin and arsenic in solution and leaves lead in the solid fraction. Solvent extraction allows separation of antimony, tin and arsenic. ... Thomas and his team are developing a pilot plant to process antimony from various sources in large quantities. The next step is planned construction of an ...
The Impact of Physical Properties on the Leaching of …
3.4. Leaching Mechanism of Antimony Ore Waste Rock. During the leaching process, the leachate pH showed three distinct stages: An initial increase, decrease and …
Antimony leaching from polyethylene terephthalate (PET) …
Antimony is a regulated contaminant that poses both acute and chronic health effects in drinking water.Previous reports suggest that polyethylene terephthalate (PET) plastics used for water bottles in Europe and Canada leach antimony, but no studies on bottled water in the United States have previously been conducted. Nine …
Antimony in the metallurgical industry: A review of its …
The other method is acidic chloride leaching (FeCl 3 as leaching agent), however, it is much less preferred due to chemical complexity, corrosion/acid mist issues, ferric ion accumulation, and lower antimony/arsenic leaching rates (below 100 °C) as compared to alkaline sulfide leaching (Yang et al., 2010, Awe and Sandström, 2010, …
Trivalent and Pentavalent Antimony
Some studies have also identified leaching of antimony from plastic PET bottles under certain environmental conditions (high temperatures, sunlight, and increased storage time outdoors), ... Oliver (1933) investigated workers at an antimony-processing plant in Newcastle-upon-Tyne, UK. Six men were engaged in oxide manufacture, four of whom …
Antimony Recovery from End-of-Life Products and Industrial …
Alkaline leaching was used to extract the antimony, followed by the oxidation of Sb(III) in a hydroquinone-catalyzed alkaline electrolyte, which precipitates …
A Review on Pyrometallurgical Extraction of Antimony from …
Yang et al. proposed a "pollution-free" process to separate antimony from a stibnite concentrate via smelting at a low temperature using a sulfur-fixing flux, ZnO. …