Antimony - Wikipedia
Antimony is a chemical element with the symbol Sb (from Latin: stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3). Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name kohl. Metallic antimony was also known, but it was erroneously identified as lead upon its discovery. The earliest known description of the metal in the West was written in 1540 by Extraction of Antimony,Electrolytic methods have, however, been developed and it is claimed that compact antimony of great purity can be obtained by these methods. Chemically pure antimony has been prepared by converting antimony trichloride, purified by distillation, into chlorantimonic acid, which, after purification by recrystallisation, is hydrolysed to antimonic acid.US20150259216A1 - Method for producing antimony,A method for producing antimony trisulfide can inexpensively produce antimony trisulfide that has a relatively low content of lead, arsenic, and crystalline silica (i.e., impurities). The method...World antimony production top countries 2020 | Statista,18/05/2021· China's antimony mine production amounted to approximately 80,000 metric tons in 2020, thus China was the leading producer of antimony in the world. Russia and Tajikistan were the second-Métallurgie extractive de l’antimoine : Dossier complet,,10/03/2015· Antimony is also a byproduct of the metallurgy of lead, copper and precious metals. This article first reviews the physical and chemical properties of antimony, its geochemistry, its mineralogy and its ore deposits. It then discusses methods for the mineral processing and extractive metallurgy of antimony, before looking at its toxicology, its substitutes, its recycling and its uses, which,Antimony Recovery from End-of-Life Products and,08/02/2016· Primary production of antimony through pyrometallurgical and hydrometallurgical methods Full size image Hydrometallurgical methods are based on two steps: leaching (alkaline sulfide or acidic chloride system), followed by the electrodeposition of antimony metal at the cathode, or hydrolysis with NaOH or NH 4 OH to produce Sb 2 O 3 [ 1 ].
Evaluation of Antimony content in WEEE plastics and in PET
considering that antimony has two main uses in the production of polymers. Antimony is added, usually in the form of antimony trioxide, with halogenated flame-retardants (especially brominates). In this case, antimony is used as a synergistic additive to improve the effect of halogenated compounds. Significant antimony concentrations can be also found in PET, because it is one of theRessources minérales: antimoine, vanadium et molybdène,La production mondiale totale d'antimoine est de 1, 17, 980 tonnes. La Chine est non seulement le plus gros producteur, mais elle produit également environ 84, 8% de l'antimoine dans le monde. Les provinces du Hunan et de Kwangsi ont d’importants gisements d’antimoine. L'Afrique du Sud produit 4, 2% de la production mondiale d'antimoine. Ici, l'antimoine est un sous-produit de la mine d'oCN103044200B - Preparation method of ethylene glycol,,The invention discloses a preparation method of ethylene glycol antimony. The method comprises the following steps of: feeding antimonous oxide and ethylene glycol into a sealed reaction kettle...Antimoine - Société Chimique de France,La production actuelle d’antimoine est de l’ordre de 170 kt/an, la Chine étant le producteur majeur (87 %). L’antimoine est l’un des éléments sur lesquels les alchimistes ontSummary of Antimony Work - psec.uchicago.edu,ode production, LAPPDs simply don’t have the space. Therefore, Sb must be applied to the window prior to sealing. This means that 1) the antimony will be exposed to the environment, or 2) vacuum transfer is necessary. If we avoid the latter and thus allow the antimony to be exposed to the (even controlled) environment, we risk oxidation and adsorption on the antimony layer. The goal of this,Improved Smelting and Refining Processes for Production,Improved Smelting and Refining Processes for Production of Antimony and Its Oxides in Xikuangshan, China. PB89112817. Publication Date: 1987: Personal Author: Xiao, Y. F. Page Count : 15: Abstract: The antimony smelting techniques that have been developed in Xikuangshan are typical of smelters in China. Traditional smelting methods have been improved since the 1940s, but several novel,
Process for the production of antimony-containing metal,
In connection with the production of antimony-containing metal oxide catalysts, the methods described in Japanese Patent Publication Nos. 18722/72 and 18723/72 (corresponding to U.S. Pat. Nos. 3,657,155 and 3,686,138, respectively) are known as being capable of producing catalysts having good activity and physical properties.New method developed for producing some metals |,24/08/2016· The discovery could lead to metal-production systems that are much less expensive and that virtually eliminate the greenhouse gas emissions associated with most traditional metal smelting. Although antimony itself is not a widely used metal, the same principles may also be applied to producing much more abundant and economically important metals such as copper and nickel, theAntimony - an overview | ScienceDirect Topics,P G JEFFERY, D HUTCHISON, in Chemical Methods of Rock Analysis (Third Edition), 1981. Determination of Antimony by Atomic Absorption Spectroscopy. The antimony values encountered in most silicate rocks are below those that can readily be determined by atomic absorption spectroscopy using an aqueous solution of the rock material. Terashima, (6) however describes a method in which antimony,Antimony Recovery from End-of-Life Products and Industrial,,cation and air treatment methods to recover traces of antimony and avoid unwanted release of antimony into the environment. Secondary supply, through recycling and valorization of industrial residues could be a solution to ensure a more secure long-term supply of antimony [9]. Secondary production of antimony could also make Europe and the U.S.A. less reliable on Chinese antimony,Antimony - Substance Information - ECHA,Release to the environment of this substance can occur from industrial use: in the production of articles, as an intermediate step in further manufacturing of another substance (use of intermediates) and formulation in materials. Manufacture . Release to the environment of this substance can occur from industrial use: manufacturing of the substance and as an intermediate step in further manufaGuidance for the monitoring of antimony in inhalable and,,Avenue de Broqueville 12, 1150 Brussels, Belgium // +32 (0)2 762 30 93 // info@antimony www.antimony VERSIONS Version Date issued Remarks 1.1 19.02.2019 Public version 1.2 09.04.2019 Main updates as follows: • Section 3 and Section 13 – Updated to reflect recommended sample preparation and analysis methods.
ANTIMOINE ET SES DÉRIVÉS - UNIGE
7440-36-0 231-146-5 Antimony solide Hydrure d'antimoine SbH 3 7803-52-3 non disponible trihydrure d'antimoine antimony hydride antimony trihydride hydrogen antimonide stibine gaz Trichlorure d'antimoine SbCl 3 10025-91-9 233-047-2 beurre d'antimoine chlorure d'antimoine chlorure antimonieux antimony butter antimony (III) chloride antimonous chloride antimony trichloride solide cristallisé,Lead smelting - Wikipedia,Plants for the production of lead are generally referred to as lead smelters.Primary lead production [clarification needed] begins with sintering.Concentrated lead ore is fed into a sintering machine with iron, silica, limestone fluxes, coke, soda ash, pyrite, zinc, caustics or pollution control particulates. Smelting uses suitable reducing substances that will combine with those oxidizing,Antimony | Sb - PubChem,Antimony is a silvery-white metal that is found in the earth's crust. Antimony ores are mined and then mixed with other metals to form antimony alloys or combined with oxygen to form antimony oxide. Little antimony is currently mined in the United States. It is brought into this country from other countries for processing. However, there are companies in the United States that produce antimony,Process for the production of antimony-containing metal,,In connection with the production of antimony-containing metal oxide catalysts, the methods described in Japanese Patent Publication Nos. 18722/72 and 18723/72 (corresponding to U.S. Pat. Nos. 3,657,155 and 3,686,138, respectively) are known as being capable of producing catalysts having good activity and physical properties.Antimony - an overview | ScienceDirect Topics,P G JEFFERY, D HUTCHISON, in Chemical Methods of Rock Analysis (Third Edition), 1981. Determination of Antimony by Atomic Absorption Spectroscopy. The antimony values encountered in most silicate rocks are below those that can readily be determined by atomic absorption spectroscopy using an aqueous solution of the rock material. Terashima, (6) however describes a method in which antimony,Chemie der Erde - MIT - Massachusetts Institute of Technology,catalyst for PET production. Antimony pentoxide and sodium anti-monate, NaSb(OH)6, are also used as flame retardants. Antimony compounds, primarily sodium antimonate, are also used in decol-orizing and refining agents for optical glass and CRT glass. In the electronics industry, Sb use grows for diodes. Antimony metal is also used for production of antimonial lead, which is an impor-tant,
Chemistry:Antimony - HandWiki
08/04/2021· Antimony is a member of group 15 of the periodic table, one of the elements called pnictogens, and has an electronegativity of 2.05. In accordance with periodic trends, it is more electronegative than tin or bismuth, and less electronegative than tellurium or arsenic.Antimony is stable in air at room temperature, but reacts with oxygen if heated to produce antimony trioxide, Sb 2 O 3.manufacturing process antimony trioxide,Antimony Ore Dressing Based on different separation process, the antimony separation equipment can be jig machine and flotation machine, Antimony ore can be 3 categories Get Price methods of processing antimony uses . production process of antimony trioxide from antimony,Antimony - Registration Dossier - ECHA,Adult survival and juvenile production were used as endpoints. The authors were not able to measure the Sb concentrations in the soils adequately. Despite a change of methods and improved efficiency of Sb extraction, on average only 58% of the added antimony could be measured. For this reason, nominal concentrations were used to determine the,Historical Uses of Antimony Metals - ThoughtCo,26/04/2018· According to some of the first metallurgy books published in Europe, crude methods for isolating antimony metal were likely known by Italian chemists over 600 years ago. Mid-15th Century . One of the antimony's earliest metallic uses came in the mid-15th century when it was added as a hardening agent in cast metal printing type used by Johannes Gutenberg's first printing presses. Byméthodes de volatilisation de l antimoine,SHANGHAI SHIBANG MACHINERY CO., LTD est une entreprise de haute technologie, qui implique également la R\u0026D, la production, les ventes et le service. Au cours des 20 dernières années, nous nous sommes consacrés à la production d"équipements miniers, de machines de fabrication de sable et de broyeurs industriels, offrant aux projets d"autoroute, de voie ferrée et de conservation de l,Determination of Antimony in Recycled Polyester Fiber,As consumer awareness of heavy metal content in textile increased, it is necessary to develop analytical methods that identify and quantify heavy metals. In order to comprehensively investigate the potential risks of antimony (Sb) in recycled polyester fiber to humans health, this study developed acid digestion method, with the condition that the volume ratio of concentrated sulfuric acid to,
