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GB613714A - Improvements in and relating to the refining of lead - Google Patents

Improvements in and relating to the refining of lead

Info

Publication number
GB613714A
GB613714A GB19166/46A GB1916646A GB613714A GB 613714 A GB613714 A GB 613714A GB 19166/46 A GB19166/46 A GB 19166/46A GB 1916646 A GB1916646 A GB 1916646A GB 613714 A GB613714 A GB 613714A
Authority
GB
United Kingdom
Prior art keywords
lead
arsenic
copper
zinc
removal
Prior art date
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
Application number
GB19166/46A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe Miniere et Metallurgique de Penarroya
Original Assignee
Societe Miniere et Metallurgique de Penarroya
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Societe Miniere et Metallurgique de Penarroya filed Critical Societe Miniere et Metallurgique de Penarroya
Publication of GB613714A publication Critical patent/GB613714A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B13/00—Obtaining lead
    • C22B13/06—Refining
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B13/00—Obtaining lead
    • C22B13/06—Refining
    • C22B13/08—Separating metals from lead by precipitating, e.g. Parkes process

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A method for refining impure, and more particularly silver-containing lead, consists in adding to the molten lead a quantity of zinc, just sufficient for decreasing the arsenic content to the desired value, in stirring together the lead and zinc, then in allowing the mixture to cool while constantly eliminating the overlying layer which forms, after which the copper, silver and other precious metals which may be present are elminated by any known refining operation, for instance, by a further addition of zinc followed by stirring and removal of the overlying layer. The quantity of zinc used to remove arsenic depends on the initial arsenic content of the lead and also the copper content, if copper is present, and it is greater, the higher the contents of arsenic and copper and the higher the temperature at which the removal of the overlying layer is completed. The elimination of precious metals may follow immediately after removal of the arsenic or the lead may be solidified between the two treatments.
GB19166/46A 1946-05-07 1946-06-26 Improvements in and relating to the refining of lead Expired GB613714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR613714X 1946-05-07

Publications (1)

Publication Number Publication Date
GB613714A true GB613714A (en) 1948-12-02

Family

ID=8979694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19166/46A Expired GB613714A (en) 1946-05-07 1946-06-26 Improvements in and relating to the refining of lead

Country Status (1)

Country Link
GB (1) GB613714A (en)

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