RU2003100880A - GRANULES OF METAL IRON - Google Patents

GRANULES OF METAL IRON

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Publication number
RU2003100880A
RU2003100880A RU2003100880/02A RU2003100880A RU2003100880A RU 2003100880 A RU2003100880 A RU 2003100880A RU 2003100880/02 A RU2003100880/02 A RU 2003100880/02A RU 2003100880 A RU2003100880 A RU 2003100880A RU 2003100880 A RU2003100880 A RU 2003100880A
Authority
RU
Russia
Prior art keywords
granules
metallic iron
iron
less
sulfur
Prior art date
Application number
RU2003100880/02A
Other languages
Russian (ru)
Other versions
RU2320730C2 (en
Inventor
Сузо Ито
Ясухиро ТАНИГАКИ
Исао Кобаяси
Осаму ЦУГЕ
Кейсуке ХОНДА
Кодзи ТОКУДА
Соити Кикути
Original Assignee
Мидрекс Интернэшнл Б.В. Цюрих Бранч
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
Priority claimed from JP2001145566A external-priority patent/JP4691827B2/en
Application filed by Мидрекс Интернэшнл Б.В. Цюрих Бранч filed Critical Мидрекс Интернэшнл Б.В. Цюрих Бранч
Publication of RU2003100880A publication Critical patent/RU2003100880A/en
Application granted granted Critical
Publication of RU2320730C2 publication Critical patent/RU2320730C2/en

Links

Claims (7)

1. Гранулы металлического железа, полученные восстановительной плавкой материала, содержащего углеродсодержащий восстановитель, и материала, содержащего оксид металла, при этом гранулы металлического железа содержат по меньшей мере 94 мас.%, Fe (далее “%”) и от 1,0 до 4,5% С и имеют диаметр от 1 до 30 мм.1. Granules of metallic iron obtained by reductive melting of a material containing a carbon-containing reducing agent and a material containing a metal oxide, the granules of metallic iron containing at least 94 wt.%, Fe (hereinafter “%") and from 1.0 to 4 , 5% C and have a diameter of from 1 to 30 mm. 2. Гранулы металлического железа по п.1, дополнительно содержащие 0,20% серы или менее.2. Granules of metallic iron according to claim 1, additionally containing 0.20% sulfur or less. 3. Гранулы металлического железа по п.1, дополнительно содержащие от 0,02 до 0,5% Si и менее 0,3% Mn.3. Granules of metallic iron according to claim 1, additionally containing from 0.02 to 0.5% Si and less than 0.3% Mn. 4. Гранулы металлического железа по п.1, которые получены нагревом и восстановлением оксида металла в материале в твердом состоянии и дальнейшим нагревом полученного восстановленного железа в восстановительной атмосфере для науглероживания и плавления полученного восстановленного железа и обеспечения возможности полученному восстановленному железу формировать гранулы при исключении побочного шлакового продукта.4. Metallic iron granules according to claim 1, which are obtained by heating and reducing the metal oxide in the material in the solid state and further heating the obtained reduced iron in a reducing atmosphere to carburize and melt the obtained reduced iron and enable the obtained reduced iron to form granules with the exception of by-product slag product. 5. Гранулы металлического железа по п.1, в которых содержание серы снижено добавлением к материалу источника СаО для регулирования основности (СаО/SiO2) шлакового компонента в материале до значения от 0,6 до 1,8 с тем, чтобы дать возможность полученному во время восстановительной плавки шлаку улавливать содержащуюся в них серу.5. Metallic iron granules according to claim 1, in which the sulfur content is reduced by adding to the material a CaO source for regulating the basicity (CaO / SiO 2 ) of the slag component in the material to a value of from 0.6 to 1.8 so as to enable the resulting during remelting smelting, catch the sulfur contained in them. 6. Гранулы металлического железа по п.1, в которых содержание серы составляет менее 0,08%.6. Granules of metallic iron according to claim 1, in which the sulfur content is less than 0.08%. 7. Гранулы металлического железа по п.1, где количество углеродсодержащего восстановителя в материале отрегулированного таким образом, чтобы остаточное содержание углерода при степени металлизации 100% после восстановления нагревом составляло от 1,5 до 5,0%.7. Metallic iron granules according to claim 1, where the amount of carbon-containing reducing agent in the material is adjusted so that the residual carbon content at a metallization degree of 100% after reduction by heating is from 1.5 to 5.0%.
RU2003100880/02A 2001-05-15 2002-05-15 Metallic iron granules RU2320730C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001145566A JP4691827B2 (en) 2001-05-15 2001-05-15 Granular metal iron
JP2001-145566 2001-05-15

Publications (2)

Publication Number Publication Date
RU2003100880A true RU2003100880A (en) 2004-07-27
RU2320730C2 RU2320730C2 (en) 2008-03-27

Family

ID=18991356

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2003100880/02A RU2320730C2 (en) 2001-05-15 2002-05-15 Metallic iron granules

Country Status (12)

Country Link
US (5) US20040076539A1 (en)
EP (1) EP1435395B1 (en)
JP (1) JP4691827B2 (en)
KR (1) KR100520630B1 (en)
CN (2) CN102181781B (en)
AT (1) ATE521721T1 (en)
AU (1) AU2002256884B2 (en)
CA (1) CA2415310C (en)
ES (1) ES2368707T3 (en)
RU (1) RU2320730C2 (en)
TW (1) TW531560B (en)
WO (1) WO2002092860A1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4691827B2 (en) * 2001-05-15 2011-06-01 株式会社神戸製鋼所 Granular metal iron
JP4266284B2 (en) * 2001-07-12 2009-05-20 株式会社神戸製鋼所 Metal iron manufacturing method
JP4167101B2 (en) * 2003-03-20 2008-10-15 株式会社神戸製鋼所 Production of granular metallic iron
US7393379B2 (en) * 2004-04-20 2008-07-01 Franklin Leroy Stebbing Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals
TW200613566A (en) * 2004-10-29 2006-05-01 Kobe Steel Ltd Process for producing molten iron and apparatus therefor
US8470068B2 (en) * 2004-12-07 2013-06-25 Nu-Iron Technology, Llc Method and system for producing metallic iron nuggets
CN104099439A (en) * 2004-12-07 2014-10-15 纽-铁科技有限责任公司 System for producing metallic iron nuggets
US7632330B2 (en) * 2006-03-13 2009-12-15 Michigan Technological University Production of iron using environmentally-benign renewable or recycled reducing agents
EP2690181A1 (en) * 2006-07-26 2014-01-29 Nu-Iron Technology, Inc Method and system for producing metallic iron nuggets
WO2008042996A1 (en) * 2006-10-04 2008-04-10 Nu-Iron Technology, Llc System and method of producing metallic iron
JP5059379B2 (en) 2006-11-16 2012-10-24 株式会社神戸製鋼所 Hot briquette iron for blast furnace charging raw material and method for producing the same
JP4317580B2 (en) * 2007-09-14 2009-08-19 新日本製鐵株式会社 Method for producing reduced iron pellets and method for producing pig iron
CA2661419A1 (en) * 2008-04-03 2009-10-03 Nu-Iron Technology, Llc System and method for producing metallic iron
JP5420935B2 (en) * 2008-04-09 2014-02-19 株式会社神戸製鋼所 Manufacturing method of granular metallic iron
CA2750290A1 (en) * 2009-01-22 2010-07-29 Nu-Iron Technology, Llc Production of iron from metallurgical waste
RU2484145C2 (en) * 2009-01-23 2013-06-10 Кабусики Кайся Кобе Сейко Се Method of producing pelletised iron
WO2011001288A2 (en) 2009-06-29 2011-01-06 Bairong Li Metal reduction processes, metallurgical processes and products and apparatus
JP5503420B2 (en) * 2010-06-07 2014-05-28 株式会社神戸製鋼所 Method for producing granular metal
US8287621B2 (en) 2010-12-22 2012-10-16 Nu-Iron Technology, Llc Use of bimodal carbon distribution in compacts for producing metallic iron nodules
JP5408369B2 (en) * 2012-01-19 2014-02-05 Ｊｆｅスチール株式会社 Hot metal pretreatment method
US10144981B2 (en) * 2012-02-28 2018-12-04 Kobe Steel, Ltd. Process for manufacturing reduced iron agglomerates
JP2014167164A (en) * 2013-02-01 2014-09-11 Kobe Steel Ltd Method for manufacturing reduced iron
WO2019016428A1 (en) 2017-07-21 2019-01-24 Outotec (Finland) Oy Rotary bed-type electric furnace
CN108330273A (en) * 2018-05-07 2018-07-27 段志松 A kind of iron ore roasting Magnitizing method and equipment
JP7094264B2 (en) * 2019-12-25 2022-07-01 株式会社神戸製鋼所 Manufacturing method of molten steel
DE102020205493A1 (en) * 2020-04-30 2021-11-04 Sms Group Gmbh Process for making liquid pig iron from a DRI product

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443931A (en) * 1965-09-10 1969-05-13 Midland Ross Corp Process for making metallized pellets from iron oxide containing material
AU451879B2 (en) * 1968-09-11 1974-08-06 The Lummus Company Process for forming hard oxide pellets and product thereof
JPS5920724B2 (en) * 1980-12-22 1984-05-15 重質油対策技術研究組合 Method for producing iron ore pellets for producing reduced iron
JPH01195226A (en) * 1988-01-29 1989-08-07 Kobe Steel Ltd Smelting reduction method
AT406480B8 (en) * 1995-07-19 2000-07-25 Voest Alpine Ind Anlagen METHOD FOR THE PRODUCTION OF LIQUID PIPE IRON OR STEEL PRE-PRODUCTS AND SYSTEM FOR IMPLEMENTING THE METHOD
EA001158B1 (en) * 1996-03-15 2000-10-30 Кабусики Кайся Кобе Сейко Сё Method and apparatus for making metallic iron
JP3296974B2 (en) * 1996-08-15 2002-07-02 株式会社神戸製鋼所 Direct reduction method and rotary bed furnace
JP3779009B2 (en) * 1996-11-18 2006-05-24 株式会社 テツゲン Method for producing high-quality reduced iron from steelmaking dust
JPH10195513A (en) * 1996-12-27 1998-07-28 Kobe Steel Ltd Production of metallic iron
US6149709A (en) * 1997-09-01 2000-11-21 Kabushiki Kaisha Kobe Seiko Sho Method of making iron and steel
JP4159634B2 (en) 1997-10-23 2008-10-01 株式会社神戸製鋼所 Metallic iron manufacturing method and equipment
CA2251339A1 (en) * 1997-10-30 1999-04-30 Hidetoshi Tanaka Method of producing iron oxide pellets
TW495552B (en) * 1997-12-18 2002-07-21 Kobe Steel Ltd Method of producing reduced iron pellets
JP3844873B2 (en) * 1998-02-27 2006-11-15 株式会社神戸製鋼所 Metal iron manufacturing method
JP3081581B2 (en) * 1998-03-23 2000-08-28 株式会社神戸製鋼所 Method of producing reduced iron agglomerates with high metallization rate
EP0952230A1 (en) * 1998-03-24 1999-10-27 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Method of producing reduced iron agglomerates
JP2997459B1 (en) * 1998-11-04 2000-01-11 株式会社神戸製鋼所 Method for producing reduced iron agglomerates
JPH11337264A (en) 1998-05-27 1999-12-10 Daido Steel Co Ltd Rotary hearth furnace
TW502066B (en) * 1998-08-27 2002-09-11 Kobe Steel Ltd Method for operating moving hearth reducing furnace
DE69932357T2 (en) * 1998-10-30 2006-11-16 Midrex Technologies, Inc. PROCESS FOR PRODUCING IRON MELTS IN DUPLEX OVEN
US6413295B2 (en) * 1998-11-12 2002-07-02 Midrex International B.V. Rotterdam, Zurich Branch Iron production method of operation in a rotary hearth furnace and improved furnace apparatus
JP3004265B1 (en) * 1998-11-24 2000-01-31 株式会社神戸製鋼所 Carbon material interior pellet and reduced iron production method
JP3404309B2 (en) * 1999-01-18 2003-05-06 株式会社神戸製鋼所 Method and apparatus for producing reduced iron agglomerates
JP3009661B1 (en) * 1999-01-20 2000-02-14 株式会社神戸製鋼所 Method for producing reduced iron pellets
US6126718A (en) * 1999-02-03 2000-10-03 Kawasaki Steel Corporation Method of producing a reduced metal, and traveling hearth furnace for producing same
US6224820B1 (en) * 1999-03-29 2001-05-01 Kawasaki Steel Corporation Method of producing a reduced metal, and traveling hearth furnace for producing same
CN1219891C (en) * 1999-05-06 2005-09-21 株式会社神户制钢所 Direct reduction method and rotary kiln hearth
US6214086B1 (en) * 1999-08-20 2001-04-10 Midrex International B.V. Rotterdam, Zurich Branch Direct reduced iron discharge system and method
CN1306045C (en) * 1999-08-30 2007-03-21 株式会社神户制钢所 Method and apparatus for supply of granular reduced iron feedstock
CN1258605C (en) * 1999-10-15 2006-06-07 株式会社神户制钢所 Reducing metal manufacturing equipment and manufacturing method of reducing metal
JP2001279313A (en) * 2000-03-30 2001-10-10 Midrex Internatl Bv Method for producing molten metallic iron
BR0105934B8 (en) * 2000-03-30 2013-09-17 Method for producing granular metal iron.
JP3844941B2 (en) * 2000-03-30 2006-11-15 株式会社神戸製鋼所 Temperature control device and temperature control method for high temperature exhaust gas
JP2001288504A (en) * 2000-03-31 2001-10-19 Midrex Internatl Bv Method for producing molten metallic iron
TW562860B (en) * 2000-04-10 2003-11-21 Kobe Steel Ltd Method for producing reduced iron
TW539829B (en) * 2000-05-19 2003-07-01 Kobe Strrl Ltd Processing method for high-temperature exhaust gas
JP4757982B2 (en) * 2000-06-28 2011-08-24 株式会社神戸製鋼所 Method for improving the yield of granular metallic iron
JP3866492B2 (en) * 2000-06-29 2007-01-10 株式会社神戸製鋼所 Operation method of rotary hearth reduction furnace
JP4330257B2 (en) * 2000-08-09 2009-09-16 株式会社神戸製鋼所 Metal iron manufacturing method
JP4691827B2 (en) * 2001-05-15 2011-06-01 株式会社神戸製鋼所 Granular metal iron
JP2003041310A (en) * 2001-07-27 2003-02-13 Kobe Steel Ltd Method for manufacturing molten metal
JP4116874B2 (en) * 2002-12-05 2008-07-09 株式会社神戸製鋼所 Liquid iron manufacturing method

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