ES256981A1 - Improvements relating to processes for the reduction of materials in a rotary kiln - Google Patents

Improvements relating to processes for the reduction of materials in a rotary kiln

Info

Publication number
ES256981A1
ES256981A1 ES0256981A ES256981A ES256981A1 ES 256981 A1 ES256981 A1 ES 256981A1 ES 0256981 A ES0256981 A ES 0256981A ES 256981 A ES256981 A ES 256981A ES 256981 A1 ES256981 A1 ES 256981A1
Authority
ES
Spain
Prior art keywords
rotary kiln
materials
processes
reduction
improvements relating
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
ES0256981A
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.)
Elektrokemisk AS
Original Assignee
Elektrokemisk AS
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 Elektrokemisk AS filed Critical Elektrokemisk AS
Publication of ES256981A1 publication Critical patent/ES256981A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/003—Phosphorus
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/01—Treating phosphate ores or other raw phosphate materials to obtain phosphorus or phosphorus compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/942—Calcium carbide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/06—Making pig-iron other than in blast furnaces in rotary kilns
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

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

Abstract

Process of heating materials in a continuous rotary kiln to obtain pig iron, ferroalloys, carbide or phosphorous, characterized in that a fuel not converted into coke, in the form of coal, is supplied separately to the central part of the kiln, peat lignite or wood, preferably bituminous coal so that its volatile constituents are fired and used for preheating and prereduction. (Machine-translation by Google Translate, not legally binding)
ES0256981A 1959-04-02 1960-03-31 Improvements relating to processes for the reduction of materials in a rotary kiln Expired ES256981A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO13133859 1959-04-02

Publications (1)

Publication Number Publication Date
ES256981A1 true ES256981A1 (en) 1960-06-16

Family

ID=19908473

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0256981A Expired ES256981A1 (en) 1959-04-02 1960-03-31 Improvements relating to processes for the reduction of materials in a rotary kiln

Country Status (6)

Country Link
BE (1) BE589232A (en)
CH (1) CH382781A (en)
ES (1) ES256981A1 (en)
FR (1) FR1253560A (en)
GB (1) GB926545A (en)
OA (1) OA00469A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102538493B (en) * 2012-02-15 2014-04-09 个旧市富祥工贸有限责任公司 Device for using waste heat of high-temperature smoke of bath smelting furnace directly
CN106931775A (en) * 2017-04-25 2017-07-07 四川卡森科技有限公司 A kind of kilndust returned to calcining zone device
CN108148939A (en) * 2017-12-31 2018-06-12 新疆八钢铁股份有限公司 Ou Yelu uses bottle coal coke and the iron smelting method of beans fuel structure
AU2021386464A1 (en) * 2020-11-24 2023-06-22 Technological Resources Pty. Limited Biomass direct reduced iron
CN116917511A (en) * 2020-11-24 2023-10-20 技术资源有限公司 Direct reduction of iron from biomass

Also Published As

Publication number Publication date
FR1253560A (en) 1961-02-10
CH382781A (en) 1964-10-15
GB926545A (en) 1963-05-22
OA00469A (en) 1966-07-15
BE589232A (en) 1960-07-18

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