細倉製錬（株）における鉛製錬

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書誌事項

タイトル別名
  • Lead Smelting and Refining at Hosokura.
  • ホソクラ セイレン カブ ニ オケル ナマリ セイレン
公開日
1993
DOI
  • 10.2473/shigentosozai.109.999
公開者
一般社団法人 資源・素材学会

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説明

The Hosokura Mine was closed in 1987, ending 1, 200 years'mining history.Simultaneously its zinc plant was shut down.But the operation of the lead plant and the acid plant are being carried on under the management of Hosokura Smelting & Refining Co., Ltd.Hosokura's operations are now producing monthly 1, 800 tonnes of electrolytic lead, 1, 300 tonnes of sulfuric acid, etc.<BR>Lead smelting is carried out using an updraft sintering machine and a blast furnace, both with oxygen enrichment, followed by Betts electro-refining process using 180 tanks.The slimes from the tankhouse are smelted in the short rotary furnce, followed by several oxidation steps and valuable metals contained such as Sb, Bi, Au and Ag are recovered as antimony trioxide, electrolytic bismuth and crude silver.The copper bearing dross from the blast furnace and the tankhouse is treated to recover lead and copper matte in another short rotary furnace.The copper matte is sent to the Onahama smelter for copper recovery.<BR>At the acid plant, ozone gas is used for bleaching black sulfuric acid and electric heaters are equipped to maintain the activation temperature of the converter when the sintering machine pauses.

収録刊行物

  • 資源と素材

    資源と素材 109 (12), 999-1002, 1993

    一般社団法人 資源・素材学会

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