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·The efficient removal of impurities As and Sb from recycled lead containing materials is a key issue in the selection of the appropriate smelting technology for projects involving metal reuse Volatilization of impurities such as As and Sb should occur as early as possible in the process and preferably within the smelting furnace so that they do not
·Water samples from Xikuangshan China the world largest antimony Sb mine with a Sb mining and smelting history of more than 200 years were analyzed These water samples ranged from stream water in the vicinity of the mining and smelting area that received seepage from ore residues to the underground mine pit drainage The concentrations of total
·The limits effective from September 15 apply to six kinds of antimony related products including antimony ore antimony metals and antimony oxide the ministry said in the statement
·Antimonite ore is processed by hand picking flotation or heavy medium separation flotation to pick out lump ore rich lump ore and concentrate that will go into the smelting process Antimony smelting is done through the pyrometallurgical process or the hydrometallurgical process but mostly the pyrometallurgical process
·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 generated by leaching
·Antimony is rare in the Earth s crust having a upper crustal abundance of only ppm Rudnick and Gao 2003 Antimony is found in over 100 different mineral species typically in association with elements such as mercury silver and gold The principal ore mineral of antimony is stibnite Sb 2 S 3 Figure 1
·Antimony ore tailings slag was used analyze heavy metals chemical speciation and leaching characteristics The results show that the residual silicate phases account for % of Sb % of As % of Hg % of Pb % of Cd and % of Zn The results showed that the release of antimony from smelting slag
·China is the largest producer of antimony in the world [2] The most important antimony resource exploited in China is the antimony ore containing stibnite Sb2S3 Traditionally extraction of antimony from stibnite involves a two step pyrometallur gical process including roasting and carbothermal reduction [3 4]
·Gary Evans the co chief executive officer of United States Antimony said that its smelting facility at Thompson Falls was only running at 50% of its capacity due to a lack of supply
·Antimonial dust is a by product of lead smelting and an important material for extracting antimony A new pyrometallurgical process for producing antimony white from the antimonial dust is reported The process mainly consists of three steps which are reduction smelting alkaline refining and blowing oxidation First the reduction smelting of antimonial
·Thus smelting at high temperature will result in environmental pollution and hazards In addition determining how to extract antimony more efficiently from a declining grade of antimony ore is a challenge Hydrometallurgical methods can be used for both simple and complex antimony ore
·Antimony in the environment comes from natural processes ore weathering volcanic activity and human activities mining and smelting use of antimony containing products fossil fuel combustion etc Similar to many elements the toxicity of antimony is closely related to its chemical form and the toxicity of Sb III is much higher than Sb V
Cooperating with an antimony company a pilot plant test of antimony smelting with bath smelting technology is made in accordance with the current situation of antimony smelting in is proved by the test that using the new bath smelting technology to smelt antimony is feasible
·Road nearby ore is relatively far away from the north smelting plant and there is a hillside in the middle; south smelting plant closed slag yard and ore yard are in its downstream so 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 mg Sb/kg waste and
·The results show that the δ 123 Sb value of the smelter derived samples antimony ore slags dust varies in the range of ‰ mean value ± ‰ which can be defined as the Sb isotopic composition of the smelting source of this area Sb isotopic compositions of the edible parts of rice and maize planted in this area are
·of antimony ore after beneficiation is generally to t/t raw ore [9] According to the data analysis results of OCED more than 60% of antimony in the waste needs to be
·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 adopted to
·The soils of antimony mining and smelting areas showed combined contamination by Sb and related metals Huang et al 2020; Li et al 2017 high temperature smelting of antimony ore would produce vast of particles enriched Sb As Cd and other metals Tian et al 2014 and the discharged wastewater contained a large number of these metals
·Antimony has a negative effect on the gold extraction from antimony gold concentrate and it is necessary to remove antimony in advance For a high calcium low antimony gold concentrate Ca Sb Au ore this study proposed to pre remove antimony using slurry electrolysis in HCl CaCl 2 system The results indicated that the optimal conditions were
·The recovered raw metal is further processed in subsequent steps It is therefore important to distinguish between smelting and metalworking as two fundamentally independent steps in the craft industry This and the following chapters focus on the different methods of ore smelting up to the formation of alloys
·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
