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antimony refining from lead

Lead and tin removal from antimony metal by refining ...

Key words: PRIMARY ANTIMONY METAL, REFINING, LEAD, OIL Introduction At present, the bulk of antimony produced is mainly consumed for antimony trioxide required for the further production of flame retardants. For high products of antimony trioxide, the only suitable metal is that of Sb99.65 grade or Sb99.85 grade as the impurities in it do not exceed 0.35-0.15%. Table 1 shows the chemical ...

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Refining of lead from lead battery recycling - STC Italy

The pyrometallurgical Lead refining process is one of the most important procedures of lead battery recycling. This process is also known as “Softening of Lead” because the metal is softened after the removal of some impurities which are present in the raw lead coming from lead battery recycling.It would be more correct to call only the process of antimony, arsenic and tin removing ...

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Refining process for removing antimony from lead bullion ...

An improved process for refining lead bullion containing antimony, in which the bullion is initially heated in a refining vessel to about 25° F. (14° C.) above the bullion melting point, and is thereafter kept molten primarily by exothermic process reactions. The process includes the steps of melting the lead-antimony bullion, agitating the bullion, adding caustic soda and metallic sodium to ...

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Method of refining lead-antimonic alloy of antimony

Method of refining lead-antimonic alloy of antimony, which includes the introduction in the molten lead-antimonic alloy components forming with antimony intermetallic compounds, passing into the slag, characterized in that as component consistently apply the aluminum or aluminum-magnesium alloys, then the magnesium chloride and lead or a mixture of caustic soda and sodium nitrate. 2. The ...

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The method of refining of antimony lead-antimonic alloy ...

There is a method of refining lead-antimonic alloy of antimony by separating the iron powder in the melt in an atmosphere of inert gas (see ed. mon. The USSR 889727 "Method of refining lead from impurities". Publ. 15.12.81. Bulletin 46). The disadvantages of the method are as shallow purification of lead from antimony (about 0,03%). In addition, the use of inert atmosphere substantially ...

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US4425160A - Refining process for removing antimony

An improved process for refining lead bullion containing antimony, in which the bullion is initially heated in a refining vessel to about 25° F. (14° C.) above the bullion melting point, and is thereafter kept molten primarily by exothermic process reactions. The process includes the steps of melting the lead-antimony bullion, agitating the bullion, adding caustic soda and metallic sodium to ...

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Separation behavior of arsenic and lead from antimony ...

01/05/2020  When classifying impurities in commercial pure antimony (Sb, 99.8%), arsenic (As) and lead (Pb) should be brought to the forefront consideration. Due to the known difficulty of As removal through zone refining, it is meaningful to investigate its separation tendency through alternative methodologies such as vacuum distillation, promoted by the large difference of their vapor pressures.

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Lead refining - messergroup

The aim of lead refining is to produce sellable lead metal. This is done in a refining kettle by separating out unwanted accompanying elements and alloying. After copper has been separated out, arsenic, tin and antimony are removed from the lead melt. The resulting dross is recycled. Kettle for lead refining. Gas Application. The separation of the accompanying elements takes place through ...

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Antimony Umicore

Antimony can be recovered in the residues from the lead refining process. The main end-of-life recycling option is from spent lead-acid batteries mainly recovered from old vehicles. The main end-of-life recycling option is from spent lead-acid batteries mainly recovered from old vehicles.

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Lead smelting - Wikipedia

Dross refers to the lead oxides, copper, antimony and other elements that float to the top of the lead. Dross is usually skimmed off and sent to a dross furnace to recover the non-lead components which are sold to other metal manufacturers. The Parkes process is used to separate silver or gold from lead. Finally, the molten lead is refined. Pyrometallurgical methods are usually used to remove ...

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(PDF) Removal of lead from crude antimony by using

The main purpose of this study was to separate lead from crude antimony through an oxidation pyro-refining process and by using sodium metaphosphate as a lead elimination reagent. The process ...

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Antimony Recovery from End-of-Life Products and

08/02/2016  The antimony recovery rate was 92 %, and a 99.7 % pure antimony oxide distillate was obtained. Binz et al. developed a bottom-up process to recover antimony from lead-refining residues. They investigated a more selective oxidation during lead softening and the carbothermic reduction of the slag to produce a concentrated antimony slag and ...

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Lead and Zinc Smelting - IFC

lead oxide, along with copper, antimony, and other elements, floats to the top and solidifies above the molten lead. The dross is removed and is fed into a dross furnace for recovery of the nonlead mineral values. The lead bullion is refined using pyrometal-lurgical methods to remove any remaining nonlead materials (e.g., gold, silver, bismuth, zinc, and metal oxides such as oxides of anti ...

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Method of refining lead-antimonic alloy of antimony

Method of refining lead-antimonic alloy of antimony, which includes the introduction in the molten lead-antimonic alloy components forming with antimony intermetallic compounds, passing into the slag, characterized in that as component consistently apply the aluminum or aluminum-magnesium alloys, then the magnesium chloride and lead or a mixture of caustic soda and sodium nitrate. 2. The ...

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Recovery of Antimony Trioxide Flame Retardants from Lead ...

from Lead Refining Residues by Slag Conditioning and Fuming Florian Binz*, and Bernd Friedrich DOI: 10.1002/cite.201500071 Bottom-up process design is performed for a new antimony white fuming approach from antimony-rich lead refining resi-dues. Thermochemical modelling is used to evaluate process boundaries regarding temperature and slag composition allowing the fuming of qualified antimony ...

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Separation behavior of arsenic and lead from antimony ...

Antimony Arsenic a b s t r a c t When classifying impurities in commercial pure antimony (Sb, 99.8%), arsenic (As) and lead (Pb) should be brought to the forefront consideration. Due to the known difficulty of As removal through zone refining, it is meaningful to investigate its separation tendency

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(PDF) Removal of lead from crude antimony by using

The main purpose of this study was to separate lead from crude antimony through an oxidation pyro-refining process and by using sodium metaphosphate as a lead elimination reagent. The process ...

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Antimony Umicore

Antimony can be recovered in the residues from the lead refining process. The main end-of-life recycling option is from spent lead-acid batteries mainly recovered from old vehicles. The main end-of-life recycling option is from spent lead-acid batteries mainly recovered from old vehicles.

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Removing antimony from waste lead storage batteries

05/04/2018  The pyrometallurgical process for refining lead bullion includes oxidation refining process and basic refining process, which both are on the basis of the principle that antimony is oxidized more easily than lead . The oxidation refining mainly chooses air as oxidant which oxidizes antimony in the molten lead. Nevertheless, poor working conditions, a long time to finish the process of ...

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Lead and Zinc Smelting - IFC

lead oxide, along with copper, antimony, and other elements, floats to the top and solidifies above the molten lead. The dross is removed and is fed into a dross furnace for recovery of the nonlead mineral values. The lead bullion is refined using pyrometal-lurgical methods to remove any remaining nonlead materials (e.g., gold, silver, bismuth, zinc, and metal oxides such as oxides of anti ...

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US2335569A - Process for removing antimony from

antimony lead slag bath litharge Prior art date 1942-03-18 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US435148A Inventor Walter T Monson Harold L Humes Richard P E Hermsdorf Current Assignee (The listed ...

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Lead Refining Plant, Lead Refining Technology, Recycled ...

Pyrometallurgical Refining is performed in liquid phase, which means that the crude Lead must be melted to temperatures from 327ºC (Lead fusion point) to 650ºC. As a general trend, the process is performed in batches of 20 to 100 tons, according to the refining plant capacity. The chemical concept behind the refining process is the addition of specific reagents to the molten Lead at proper ...

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Lead - Essential Chemical Industry

The molten lead is tapped off from the base of the furnace and either cast into, typically, 4 tonne ingots or put into a 'holding kettle' which keeps the metal molten for the refining process. The product contains about 99.5% lead, the remaining 0.5% being mostly antimony and silver with smaller amounts of other metals, including gold. Because ...

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