ES406553A1 - Non-ferrous metal removal - from ferrous materials using sulphating roasting followed by chloridising volatilisation - Google Patents

Non-ferrous metal removal - from ferrous materials using sulphating roasting followed by chloridising volatilisation

Info

Publication number
ES406553A1
ES406553A1 ES406553A ES406553A ES406553A1 ES 406553 A1 ES406553 A1 ES 406553A1 ES 406553 A ES406553 A ES 406553A ES 406553 A ES406553 A ES 406553A ES 406553 A1 ES406553 A1 ES 406553A1
Authority
ES
Spain
Prior art keywords
ferrous
chloridising
volatilisation
metal removal
sulphating
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
ES406553A
Other languages
Spanish (es)
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.)
Duisburger Kupferhuette
Original Assignee
Duisburger Kupferhuette
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 Duisburger Kupferhuette filed Critical Duisburger Kupferhuette
Publication of ES406553A1 publication Critical patent/ES406553A1/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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/08—Chloridising roasting
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Two stage method of removing the non-ferrous content from iron ores, roasted pyrites, dust and foundry by-prods. comprises (a) a sulphating roast to fully roast the sulphide content and produce water- or acid-soluble cpds., the speed of the reaction being suff. to ensure almost complete conversion (pref. is not >2% remains unconverted), followed by leaching and (b) after pretreatment of the leach remainder ie drying, milling and pelleting, the remainder is subjected to a chloridising vaporisation stage when the remaining non-ferrous content is quickly reduced to the required low value.
ES406553A 1971-09-10 1972-09-09 Non-ferrous metal removal - from ferrous materials using sulphating roasting followed by chloridising volatilisation Expired ES406553A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712145276 DE2145276B2 (en) 1971-09-10 1971-09-10 Process combination for processing non-ferrous metal-containing sulphidic and / or oxidic iron ores, pebble burns, flue dust and metallurgical intermediate products

Publications (1)

Publication Number Publication Date
ES406553A1 true ES406553A1 (en) 1975-09-16

Family

ID=5819187

Family Applications (1)

Application Number Title Priority Date Filing Date
ES406553A Expired ES406553A1 (en) 1971-09-10 1972-09-09 Non-ferrous metal removal - from ferrous materials using sulphating roasting followed by chloridising volatilisation

Country Status (2)

Country Link
DE (1) DE2145276B2 (en)
ES (1) ES406553A1 (en)

Also Published As

Publication number Publication date
DE2145276B2 (en) 1975-09-18
DE2145276A1 (en) 1973-03-22

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