发明授权
- 专利标题: Electric smelting of lead sulphate residues
- 专利标题(中): 电冶炼硫酸铅残留物
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申请号: US771429申请日: 1977-02-24
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公开(公告)号: US4135912A公开(公告)日: 1979-01-23
- 发明人: Ian G. Matthew , Ralph W. Pickering , Takashi Suzuki , Hisashi Uchida
- 申请人: Ian G. Matthew , Ralph W. Pickering , Takashi Suzuki , Hisashi Uchida
- 申请人地址: AUX JPX
- 专利权人: Electrolytic Zinc Company of Australia Limited,Mitsubishi Metal Corporation
- 当前专利权人: Electrolytic Zinc Company of Australia Limited,Mitsubishi Metal Corporation
- 当前专利权人地址: AUX JPX
- 优先权: AUXPC5043 19760227
- 主分类号: C22B11/02
- IPC分类号: C22B11/02 ; C22B13/00 ; C22B13/02 ; C22B4/04 ; C22B13/06
摘要:
A process for treatment of lead residues, without prior sintering, in which residues more than 70% of the lead is present as lead sulphates, comprising addition of the said residues, together with a reductant containing carbon and together with fluxes that will react to provide a slag containing FeO, CaO and SiO.sub.2, directly to an electric furnace operating at a temperature of 1000 to 1500.degree. C in the slag layer to produce in the furnace a lead bullion. The expression "lead sulphates" will be understood to include lead sulphate and other compounds containing lead and the sulphate ion, for example, the basic lead sulphates.
公开/授权文献
- US5823508A One piece quick connect 公开/授权日:1998-10-20
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