[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS5754230A - Production of sintered ore resistant to reduction and degradation - Google Patents

Production of sintered ore resistant to reduction and degradation

Info

Publication number
JPS5754230A
JPS5754230A JP12772480A JP12772480A JPS5754230A JP S5754230 A JPS5754230 A JP S5754230A JP 12772480 A JP12772480 A JP 12772480A JP 12772480 A JP12772480 A JP 12772480A JP S5754230 A JPS5754230 A JP S5754230A
Authority
JP
Japan
Prior art keywords
powder
iron ore
sintering
lime
degradation
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.)
Granted
Application number
JP12772480A
Other languages
Japanese (ja)
Other versions
JPS636616B2 (en
Inventor
Yasumasa Sawamura
Katsuhiko Sato
Satoru Suzuki
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 JP12772480A priority Critical patent/JPS5754230A/en
Publication of JPS5754230A publication Critical patent/JPS5754230A/en
Publication of JPS636616B2 publication Critical patent/JPS636616B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To produce a sintered ore excellent in resistance to reduction and degradation by mixing a coarse particles of lime of a specified particle size into a powder of iron ore together with other mixing material, when sintering a powder of iron ore by a bottom gas-intake type sintering machine.
CONSTITUTION: When sintering the powder of iron ore by the bottom gas-intake type sintering machine, coarse particles of lime having a particle size of 0.5W10mm, inclusive, are mixed into the powder of iron ore together with other mixing materials. Accordingly, the reaction of the lime in the sintering process is retarded, the formation or growth of the secondary hematite is controlled, and Fe2O3 and CaO are positively reacted with eath other at the time when the atmosphere in the system becomes oxidizing in the later period of the sintering process, thereby forming calcium-ferrite.
COPYRIGHT: (C)1982,JPO&Japio
JP12772480A 1980-09-13 1980-09-13 Production of sintered ore resistant to reduction and degradation Granted JPS5754230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12772480A JPS5754230A (en) 1980-09-13 1980-09-13 Production of sintered ore resistant to reduction and degradation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12772480A JPS5754230A (en) 1980-09-13 1980-09-13 Production of sintered ore resistant to reduction and degradation

Publications (2)

Publication Number Publication Date
JPS5754230A true JPS5754230A (en) 1982-03-31
JPS636616B2 JPS636616B2 (en) 1988-02-10

Family

ID=14967131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12772480A Granted JPS5754230A (en) 1980-09-13 1980-09-13 Production of sintered ore resistant to reduction and degradation

Country Status (1)

Country Link
JP (1) JPS5754230A (en)

Also Published As

Publication number Publication date
JPS636616B2 (en) 1988-02-10

Similar Documents

Publication Publication Date Title
ES8701562A1 (en) A manganese sulphide-containing iron powder mixture and a process for the production thereof.
JPS5754230A (en) Production of sintered ore resistant to reduction and degradation
JPS57140307A (en) Manufacture of metallic nitride powder for magnetic recording
JPS5789440A (en) Production of sintered ore
JPS57200529A (en) Preparation of sintered ore having iron ore fine powder highly compounded therein
JPS5773135A (en) Manufacture of sintered ore with high productivity
JPS579838A (en) Manufacture of sintered ore with high reducibility
JPS57192228A (en) Production of sintered ore
JPS5789439A (en) Production of sintered ore
JPS53142301A (en) Treating method for finely powdered raw material
JPS5620129A (en) Manufacture of sintered ore
JPS54117301A (en) Coarse particles-containing self-fluxing ore pellets
JPS57200530A (en) Method for mixing and granulating sintering stock material
JPS53144412A (en) Method of producing sintered ore
JPS54103718A (en) Synthetic basic slag used for re-melting electroslag
JPS52143902A (en) Calcined pellet
JPS54161512A (en) Lumped ore for iron making raw material
JPS56165302A (en) Manufacture of magnetic metal powder
JPS5751223A (en) Treatment of sintered return ore
JPS57140835A (en) Enhancing method for gas permeability of starting material layer for sintering
JPS57179025A (en) Monoclinic system compound represented by 4mgo-6f2o3- 9geo2 (mg4fe12ge9o40)and its manufacture
Majercak Making Sinter of FeMnC Process Flue Dust
Engstrom A Manganese Sulphide-Containing Iron Powder Mixture and a Process for the Production Thereof
Pinheiro et al. Effect of MgO on the Disintegration of Sinter
JPS56234A (en) Production of reduced pellet