GB781108A - Improvements in the reduction of metallic ores - Google Patents

Improvements in the reduction of metallic ores

Info

Publication number
GB781108A
GB781108A GB7571/55A GB757155A GB781108A GB 781108 A GB781108 A GB 781108A GB 7571/55 A GB7571/55 A GB 7571/55A GB 757155 A GB757155 A GB 757155A GB 781108 A GB781108 A GB 781108A
Authority
GB
United Kingdom
Prior art keywords
layer
slag
per cent
inches
furnace
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
GB7571/55A
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.)
FORNI LUBATTI SOC
Original Assignee
FORNI LUBATTI SOC
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 FORNI LUBATTI SOC filed Critical FORNI LUBATTI SOC
Publication of GB781108A publication Critical patent/GB781108A/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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/04—Heavy metals
    • 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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents

Landscapes

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

Abstract

781,108. Reduction of metallic ores; slags. SOC. FORNI LUBATTI. March 15. 1955 [March 20, 1954], No. 7571/55. Classes 72, 82(1) and 82(2) A method for the production of metals from granular ores in a slag resistance furnace comprises preparing a molten slag layer in a furnace feeding comminuted ore and reducing agent on to the molten slag layer to a depth of more than four inches, maintaining the current transmitting portions of electrodes below the surface of the charge layer and discontinuously removing the metal and slag. The size of the ore is under one millimetre and that of the reducing agent under five millimetres. As shown, a furnace 11 has two electrodes 13, 14 having current transmitting portions 17, a slag layer 18, a charge layer 19 and a reduced 'metal layer 22. That portion of the electrodes above the portions 17 should be electrically and thermally insulated by a coating 21 and the portion 17 should lie within the lower third of the charge layer and the upper third of the slag layer. The thickness of the three layers is of importance in the operation of the process and should lie within the following ranges: charge layer 4-20 inches, slag layer 16-28 inches, metal layer 12-32 inches, and further, the charge layer should not exceed one-sixth of the largest horizontal dimension of the furnace. The reducing agent may be coal and up to 15 per cent may be added in the form of pieces 15-45 m.ms. in size. The slag may be formed by melting 50 per cent calcium oxide and 50 per cent kaolin to produce a slag consisting of 46.7 per cent CaO, 4 per cent MgO, 36 per cent SiO 2 , 11.5 per cent Al 2 O 3 , the balance being impurities. Specifications 695,158, 717.576 and 745,001 are referred to.
GB7571/55A 1954-03-20 1955-03-15 Improvements in the reduction of metallic ores Expired GB781108A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT781108X 1954-03-20

Publications (1)

Publication Number Publication Date
GB781108A true GB781108A (en) 1957-08-14

Family

ID=11316392

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7571/55A Expired GB781108A (en) 1954-03-20 1955-03-15 Improvements in the reduction of metallic ores

Country Status (1)

Country Link
GB (1) GB781108A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001863A (en) * 1958-08-01 1961-09-26 Electro Chimie Metal Process for obtaining ferrous metals and alloys from their ores
DE1144931B (en) * 1961-03-29 1963-03-07 Metallgesellschaft Ag Electrometallurgical process for reducing melting of oxidic heavy metal compounds, in particular for the production of copper from oxidic copper compounds
EP0006420A1 (en) * 1978-04-01 1980-01-09 Hoechst Aktiengesellschaft Composition containing carbonaceous material for electrothermic reduction processes and method for the production thereof
EP0275349A1 (en) * 1987-01-09 1988-07-27 Inteco Internationale Technische Beratung Gesellschaft mbH Method for the secondary metallurgical treatment of molten metal, especially molten steel
WO1997040197A1 (en) * 1996-04-19 1997-10-30 Ipcor N.V. Metal containing compound reduction and melting process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001863A (en) * 1958-08-01 1961-09-26 Electro Chimie Metal Process for obtaining ferrous metals and alloys from their ores
DE1144931B (en) * 1961-03-29 1963-03-07 Metallgesellschaft Ag Electrometallurgical process for reducing melting of oxidic heavy metal compounds, in particular for the production of copper from oxidic copper compounds
EP0006420A1 (en) * 1978-04-01 1980-01-09 Hoechst Aktiengesellschaft Composition containing carbonaceous material for electrothermic reduction processes and method for the production thereof
EP0275349A1 (en) * 1987-01-09 1988-07-27 Inteco Internationale Technische Beratung Gesellschaft mbH Method for the secondary metallurgical treatment of molten metal, especially molten steel
WO1997040197A1 (en) * 1996-04-19 1997-10-30 Ipcor N.V. Metal containing compound reduction and melting process

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