refining process for removing antimony from lead bullion

  • US4425160A Refining process for removing antimony

    The process includes the steps of melting the lead-antimony bullion, agitating the bullion, adding caustic soda and metallic sodium to form an antimony-rich skimmable refining dross comprising a sodium-antimony intermetallic and separating the dross from the refined bullion.

  • Refining process for removing antimony from lead bullion

    In using aluminum for antimony removal, the refining process is carried out at a temperature of 1300° F. The aluminum, upon addition, melts and is mixed into the bullion to react with the antimony to form an aluminum-antimony intermetallic which rises and is separated from the bullion as a dross.

  • US8211207B2 Process for refining lead bullion Google

    The Lewis acid component and Arrhenius base compound are added in stoichiometric amounts that preferentially remove lighter amphoteric elements from the molten lead bullion, and promote reactions...

  • Lead Bullion Fire-refining and Electrorefining Process-Lead-

    The lead-refining process is described as, “ After copper drossing, generally Te, As, Sn and Sb are removed substantially by the Harris Refining Process using fused NaOH. A certain selectivity during refining is achieved by controlled addition of NaNO3. Another refining step is decopperizing by means of elemental sulfur.

  • Lead processing Refining Britannica

    To remove and recover remaining impurities from lead bullion, either pyrometallurgical or electrolytic refining is used; the choice between the two methods is dictated by the amount of bismuth that must be eliminated from the bullion and by the availability and cost of energy.

  • Removing antimony from waste lead storage batteries alloy

    4/5/2018· 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 [ 6 ]. The oxidation refining mainly chooses air as oxidant which oxidizes antimony in

  • Recovery of Antimony Trioxide Flame Retardants from Lead

    originating from softening of primary or secondary lead bullion, is left unused in western industrial nations. Anti-mony-rich drosses from industrial lead refining usually contain ~30wt% of antimony and ~60wt% of lead in oxide form. These residues have been reduced to hard lead alloys in the past, which were used in lead-acid-battery grids.

  • Antimony Refining Process Machine

    Refining process for removing antimony from lead bullion US In using aluminum for antimony removal, the refining process is carried is easily removed from the molten bullion surface using conventional skimming equipment. Click & Chat Now antimony ore

  • Removing antimony from waste lead storage batteries

    4/5/2018· However, there are few reports about the process of removing antimony from high-antimony lead bullion. In this study, vacuum displacement reaction technology, a new process for removing antimony from high-antimony lead melts, was investigated.

  • 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.

  • Recovery of Antimony Trioxide Flame Retardants from Lead

    originating from softening of primary or secondary lead bullion, is left unused in western industrial nations. Anti-mony-rich drosses from industrial lead refining usually contain ~30wt% of antimony and ~60wt% of lead in oxide form. These residues have been reduced to hard lead alloys in the past, which were used in lead-acid-battery grids.

  • Lead Refining (Pb),Lead Casting Machine,Lead Processing

    The process of removing unwanted contaminants by various treatments carried out on a bath of molten Lead is known as Lead refining. Primary Lead production is usually viewed in terms of two distinct operations converting Lead concentrate to bullion and refining the bullion.

  • Lead Refining Plant:(Pyrometallurgical techniques)

    The Lead Bullion is fed into a refining kettle. Lead bullion contains many other metallic impurities including antimony, arsenic, copper, tin and zinc. Refining Process of Lead in Detail: a. Removal of Copper Copper is the first of the impurities to be removed. The lead bullion is melted at about 300–600 °C and held just above its

  • Antimony Refining Process Machine

    Refining process for removing antimony from lead bullion US In using aluminum for antimony removal, the refining process is carried is easily removed from the molten bullion surface using conventional skimming equipment. Click & Chat Now antimony ore

  • The refining of lead by the Betts process

    Lead bull ion production Refining of bullion 99.99 +~ Pb Sulphur dioxide Byproduct metals Fig. 1. Flowsheet for lead extraction from sulphidic concentrates. where reducing coal-air mixtures are injected through tuyeres to lower its lead oxide content. The refining of bullion is carried out by either a

  • Lead smelting Wikipedia

    The speiss and the matte are usually sold to copper smelters where they are refined for copper processing. The lead from the blast furnace, called lead bullion, then undergoes the drossing process. The bullion is agitated in kettles then cooled to 700-800 degrees. This process results in

  • Separating lead–antimony alloy by fractional

    7/5/2015· Then the alloy is converted in reverberatory furnace in order to separate antimony from the alloy by blowing smelting, in which crude lead bullion containing about 20–25% by weight antimony and antimony oxide powder (antimony white) were gotten.

  • Removal of Antimony from lead? Gunloads

    2/2/2020· if it's just antimony you can swage it and still retain the softness. you might could use a borate to capture and remove the antimony from the alloy. but to do it at home would take about 30 pounds of borate to clean 15 pounds of lead and quite a bit of time. I