ZA968730B - Process of carburizing sponge iron. - Google Patents

Process of carburizing sponge iron.

Info

Publication number
ZA968730B
ZA968730B ZA9608730A ZA968730A ZA968730B ZA 968730 B ZA968730 B ZA 968730B ZA 9608730 A ZA9608730 A ZA 9608730A ZA 968730 A ZA968730 A ZA 968730A ZA 968730 B ZA968730 B ZA 968730B
Authority
ZA
South Africa
Prior art keywords
sponge iron
carburizing
carburizing sponge
iron
sponge
Prior art date
Application number
ZA9608730A
Inventor
Gerd Elsenheimer
Karl-Heinz Fischer
Original Assignee
Metallgesellschaft Ag
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 Metallgesellschaft Ag filed Critical Metallgesellschaft Ag
Publication of ZA968730B publication Critical patent/ZA968730B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Manufacture Of Iron (AREA)
ZA9608730A 1995-10-17 1996-10-16 Process of carburizing sponge iron. ZA968730B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19538591A DE19538591C1 (en) 1995-10-17 1995-10-17 Carburisation of sponge iron

Publications (1)

Publication Number Publication Date
ZA968730B true ZA968730B (en) 1998-04-16

Family

ID=7775044

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9608730A ZA968730B (en) 1995-10-17 1996-10-16 Process of carburizing sponge iron.

Country Status (3)

Country Link
CN (1) CN1158901A (en)
DE (1) DE19538591C1 (en)
ZA (1) ZA968730B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19748968C1 (en) * 1997-11-06 1999-06-10 Metallgesellschaft Ag Process for producing a mixture of iron carbide and granular, directly reduced iron
WO2001025494A1 (en) * 1999-10-01 2001-04-12 Svedala Industries, Inc. Rotary cooler for iron carbide production
CN101269315B (en) * 2008-05-12 2011-08-31 河北理工大学 Modified spherical sponge iron for wastewater treatment and preparation method
CN104451017B (en) * 2014-11-28 2016-03-16 中冶赛迪工程技术股份有限公司 A kind of carburization process of vanadium titano-magnetite shaft kiln directly reduced iron
US10508314B2 (en) 2015-06-24 2019-12-17 Midrex Technologies, Inc. Methods and systems for increasing the carbon content of sponge iron in a reduction furnace
US10316376B2 (en) 2015-06-24 2019-06-11 Midrex Technologies, Inc. Methods and systems for increasing the carbon content of sponge iron in a reduction furnace
US12084730B2 (en) 2020-03-24 2024-09-10 Midrex Technologies, Inc. Methods and systems for increasing the carbon content of direct reduced iron in a reduction furnace

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734128A (en) * 1985-09-23 1988-03-29 Hylsa, S.A. Direct reduction reactor with hot discharge
US4897113A (en) * 1985-09-23 1990-01-30 Hylsa, S.A. Direct reduction process in reactor with hot discharge
DE4406382C2 (en) * 1994-02-26 1997-08-14 Metallgesellschaft Ag Rotary cooler for cooling bulk goods

Also Published As

Publication number Publication date
CN1158901A (en) 1997-09-10
DE19538591C1 (en) 1997-04-10

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