Estimates of the abundance of antimony in the Earth's crust range from 0.2 to 0.5 parts per million. Antimony is chalcophile, occurring with sulfur and the heavy metals, lead, copper, and silver. Over a hundred minerals of antimony are found in nature. Stibnite (Sb 2 S 3) is the predominant ore mineral of antimony. The most important use of ...
: In the northwestern margin of the Youjiang basin (NWYB) in SW China, many Carlin-like gold deposits are highly antimony (Sb)-rich, and many vein-type Sb deposits contain much Au. These deposits have similar ages, host rocks, ore-forming temperatures, ore-related alterations and ore mineral assemblages, but the Au and Sb metallogenic …
The present article summarizes antimony mine distribution, antimony mine drainage generation and environmental impacts, and critically analyses the remediation approach …
Antimony is also alloyed with tin to make pewter items such as plates, pitchers and cups, used mostly for decoration. One use of antimony, which is declining, is to make type metal for newspapers and magazines. Antimony is one of very few substances (bismuth and water are two others) which expand when it cools and freezes.
The present article summarizes antimony mine distribution, antimony mine drainage generation and environmental impacts, and critically analyses the remediation approach with special emphasis on iron oxidizing bacteria and sulfate reducing bacteria. Most recent research focuses on readily available l …
The objectives of this work were to evaluate the use of iron- and sulphur-oxidising bacteria Acidithiobacillus ferrooxidans and sulphate-reducing bacteria Desulfovibrio desulfuricans in the biohydrometallurgical processing of gold-bearing antimony sulphide minerals. Experiments were conducted at laboratory scale on a refractory gold-bearing stibnite …
The present article summarizes antimony mine distribution, antimony mine drainage generation and environmental impacts, and critically analyses the remediation approach with special emphasis on iron oxidizing bacteria and sulfate reducing bacteria.
It is shown that G. sulfurreducens cannot reduce Sb(V) directly or cause Sb release during the bioreduction of the Fe(III) mineral ferrihydrite, suggesting that Fe (bio)minerals have a potential role in limiting antimony pollution in the environment, even when undergoing redox transformations. Expand
The recycling rate for antimony is unclear but thought to be between 1 and 28% in the European Union 1 and to account for around 18% of antimony supply in the United States of America 2. Antimony features highly on the critical minerals lists of many countries including Australia 3, the United States of America 4, Canada 5, Japan 6 and …
The problem discussed in this antimony process study is limited to a concentrator capable of beneficiating 150 tons per day of antimony ore.The antimony in this study occurs as the mineral stibnite …
The garnierite laterite ore containing 0.72 Ni, 0.029 Co, 8.65 Fe, 29.66 MgO, and 37.86 SiO2 was collected in the Mojiang area of China. Garnierite was the Ni-bearing mineral the other main minerals were potash feldspar, forsterite,mineral o idizing roasting equipment,mineral o idizing roasting equipment.
Once the antimony minerals are oxidized in contact with the air, antimony will be released in a dissolved state, and then attached to the surface of various solid particles in the tailings in the ...
The reduction process can release antimony from sediments into the water environment. The transformation process of antimony is Sb(III) → Sb(V) → Sb(OH) 6 …
The process presented is appropriate for antimony extraction with significant benefits associated with an increased value of galena concentrate and its own market value. View Show abstract
Antimony oxidizing bacteria (SbOB) and iron oxides are the main driving factors to the weathering dissolution and oxidation of stibnite (Sb 2 S 3) waste ore.The characteristics of the dissolution and oxidation process of stibnite in the absence of strain AO-1 and iron oxides, Pseudomonas sp. AO-1-mediated (AO-1-mediated), Fe (Fe, Fe 2 …
In comparison, the basic sodium sulphide system has the advantages of fast reaction, short cycle time, low pollution and low production costs. The alkaline leaching process of antimony from different minerals has been studied by many researchers (Anderson et al., 2012; Awe and Sandström, 2010, Guo et al., 2019, Han et al., 2020).
The analysis of the predicted proteins encoded by aioAB provides evidence that these genes may encode an As(III) oxidase. Physical maps of aio and ars operons from R. cervicalis ATCC 49957 and a well-known Sb(III) and As(III)-oxidizer A. tumefaciens 5 A were compared (Fig. S1b).A phylogenetic analysis of the predicted AioA amino acid …
The development of new low-cost and simple structured online analysis technology for concentrate grade in the antimony flotation process is of great importance for mineral processing companies. Raman spectroscopy is a noncontact and fast vibrational spectroscopy approach that can accurately analyse the molecular structure of …
The main topics covered are as follow: 1) abiotic oxidation of Sb(III) to Sb(V), the relevant minerals, inorganic and organic oxidants, and the conditions promoting …
The reaction mechanisms in oxidative leaching are complex and can involve the oxidation of antimony sulfide minerals to soluble antimony species. These …
The problem discussed in this antimony process study is limited to a concentrator capable of beneficiating 150 tons per day of antimony ore.The antimony in this study occurs as the mineral stibnite (Sb2S3) in association with small amounts of pyrite, arsenopyrite, galena and lead sulfantimonides. The gangue is composed largely …
In this process, antimony from Pb-Sb alloy is used to reduce desulfurized lead paste into lead under vacuum, while it is oxidized into volatile Sb2O3 as by-product.
The present article summarizes antimony mine distribution, antimony mine drainage generation and environmental impacts, and …
AT MINERAL PROCESSING Worldwide is the counterpart to AT MINERAL PROCESSING Europe and is an English-only edition distributed exclusively outside Europe. Focusing on the various process stages of mineral processing, such as crushing and agglomerating, screening and classifying, material transport and storage, the journal highlights both ...
Article Treatment of antimony mine drainage: challenges and opportunities with special emphasis on mineral adsorption and sulfate reducing bacteria. The present article …
Like most other minerals, the processing of antimony can be reduced into three sub-industries; mineral processing, pyrometallurgy, and hydrometallurgy. Alkaline sulfide leaching of stibnite from base metal and gold industries is presented due to the overwhelming number of plants operating under such conditions as opposed to acidic …
The antimony ore beneficiation methods mainly include manual separation, gravity separation, flotation, and other methods. Select the beneficiation process of a specific ore based on the physical and chemical properties of the ore type (natural type and industrial type), mineral composition, structural structure, and process particle size of useful …
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 p …
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Antimony is classified as a critical/strategic metal. Its primary production is predominated by China via pyrometallurgical routes such as volatilization roasting—reduction smelting or direct reduction smelting. The performance of most of the pyro-processes is very sensitive to concentrate type and grade. Therefore, technology …
The specific process flow needs to be designed according to the nature and characteristics of the ore. This process flow is a general process flow and is universal. The specific mineral processing process needs to provide antimony ore samples from the customer to determine the best mineral processing plant. The selection of suitable …
Antimony oxide ore beneficiation has become one of the world's largest mineral processing conundrums. In recent years, many experimental studies dealing with antimony oxide ore have been carried out, resulting in new technical achievements. Much attention has been paid to improving the mineral processing technology of antimony …
Sherritt’s Chimera process was developed to treat high-impurity copper concentrates and nickel laterites together in a single pressure leach step. In this process, oxidation of the sulphide minerals in the …