JPS5466314A - Manufacture of reduced pellets - Google Patents

Manufacture of reduced pellets

Info

Publication number
JPS5466314A
JPS5466314A JP13392077A JP13392077A JPS5466314A JP S5466314 A JPS5466314 A JP S5466314A JP 13392077 A JP13392077 A JP 13392077A JP 13392077 A JP13392077 A JP 13392077A JP S5466314 A JPS5466314 A JP S5466314A
Authority
JP
Japan
Prior art keywords
manufacture
pellets
water
iron ore
contg
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.)
Pending
Application number
JP13392077A
Other languages
Japanese (ja)
Inventor
Junsuke Haruna
Takeshi Hanai
Masahiro Sato
Kazuyuki Miura
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP13392077A priority Critical patent/JPS5466314A/en
Publication of JPS5466314A publication Critical patent/JPS5466314A/en
Pending legal-status Critical Current

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To prevent reduced pellets of iron ore from powdering during calcination in manufacture of the pellets contg. a reducing agent by using iron ore contg. water of crystallization above 1% in average.
CONSTITUTION: In manufacture of reduced pellets of iron ore, iron ore contg. water of crystallization above 1% alone is used as raw ore, or two or more kinds of ores are mixed to regulate the average content of water of crystallization to above 1%. 10W15 wt% of coke breeze as a reducing agent and about 1 wt% of bentonite as a binder are further blended. They are mixed, pelletized, and calcined to manufacture reduced pellets. Pores formed by dehydration of the water at the time of calcination absorb expansion of the ore at the time, thus preventing the pellets from powdering due to abnormal expansion.
COPYRIGHT: (C)1979,JPO&Japio
JP13392077A 1977-11-08 1977-11-08 Manufacture of reduced pellets Pending JPS5466314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13392077A JPS5466314A (en) 1977-11-08 1977-11-08 Manufacture of reduced pellets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13392077A JPS5466314A (en) 1977-11-08 1977-11-08 Manufacture of reduced pellets

Publications (1)

Publication Number Publication Date
JPS5466314A true JPS5466314A (en) 1979-05-28

Family

ID=15116167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13392077A Pending JPS5466314A (en) 1977-11-08 1977-11-08 Manufacture of reduced pellets

Country Status (1)

Country Link
JP (1) JPS5466314A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002036836A1 (en) * 2000-10-30 2002-05-10 Nippon Steel Corporation Metal oxide-containing green pellet for reducing furnace, method for production thereof, method for reduction thereof, and reduction facilities
WO2009008270A1 (en) * 2007-07-10 2009-01-15 Kabushiki Kaisha Kobe Seiko Sho Carbon composite iron oxide briquette and process for producing the same
JP2020147777A (en) * 2019-03-12 2020-09-17 Ｊｆｅスチール株式会社 Sponge iron and manufacturing method of reduced iron powder
WO2024028922A1 (en) * 2022-08-01 2024-02-08 Ｊｆｅスチール株式会社 Non-fired pellets for reduction, and method for manufacturing same
WO2024028920A1 (en) * 2022-08-01 2024-02-08 Ｊｆｅスチール株式会社 Non-fired pellets for reduction, and method for manufacturing same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002036836A1 (en) * 2000-10-30 2002-05-10 Nippon Steel Corporation Metal oxide-containing green pellet for reducing furnace, method for production thereof, method for reduction thereof, and reduction facilities
US7815710B2 (en) 2000-10-30 2010-10-19 Nippon Steel Corporation Metal oxide-containing green pellet for reducing furnace, method for production thereof, method of reduction thereof, and reduction facilities
US7964014B2 (en) 2000-10-30 2011-06-21 Nippon Steel Corporation Metal oxide-bearing green pellets for reducing furnace, method of production of same, method of reduction of same, and reduction facility
WO2009008270A1 (en) * 2007-07-10 2009-01-15 Kabushiki Kaisha Kobe Seiko Sho Carbon composite iron oxide briquette and process for producing the same
JP2009035820A (en) * 2007-07-10 2009-02-19 Kobe Steel Ltd Carbon composite iron oxide agglomerate, method for producing the agglomerate, and method for producing reduced iron or metal iron
JP2020147777A (en) * 2019-03-12 2020-09-17 Ｊｆｅスチール株式会社 Sponge iron and manufacturing method of reduced iron powder
WO2024028922A1 (en) * 2022-08-01 2024-02-08 Ｊｆｅスチール株式会社 Non-fired pellets for reduction, and method for manufacturing same
WO2024028920A1 (en) * 2022-08-01 2024-02-08 Ｊｆｅスチール株式会社 Non-fired pellets for reduction, and method for manufacturing same

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