GB503925A - Improvements in or relating to the reduction of iron ores in blast furnaces - Google Patents

Improvements in or relating to the reduction of iron ores in blast furnaces

Info

Publication number
GB503925A
GB503925A GB27980/37A GB2798037A GB503925A GB 503925 A GB503925 A GB 503925A GB 27980/37 A GB27980/37 A GB 27980/37A GB 2798037 A GB2798037 A GB 2798037A GB 503925 A GB503925 A GB 503925A
Authority
GB
United Kingdom
Prior art keywords
per cent
lime
blast
silica
slag
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
GB27980/37A
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.)
Linde GmbH
Original Assignee
Gesellschaft fuer Lindes Eismaschinen 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 Gesellschaft fuer Lindes Eismaschinen AG filed Critical Gesellschaft fuer Lindes Eismaschinen AG
Publication of GB503925A publication Critical patent/GB503925A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

503,925. Iron manufacture. GES. FUR LINDE'S EISMASCHINEN AKT.-GES. Oct. 14, 1937, No. 27980. Convention date, Oct. 14, 1936. Drawings to Specification. [Class 72] Acid low-grade iron ores are, after drying and if necessary roasting, reduced in a blast furnace with a slag having a ratio of lime to silica content of less than 0À8 per cent, the temperature in the furnace being maintained above that at which the slag flows freely by enriching the blast with oxygen. Substantially the same degree of desulphurization of the iron is obtained as when slags having a higher ratio of lime to silica are employed. In an example, the slag contains 64 per cent of silica and 13À5 per cent of lime, the blast being heated to 700‹ C. and enriched to contain 26 per cent of oxygen.
GB27980/37A 1936-10-14 1937-10-14 Improvements in or relating to the reduction of iron ores in blast furnaces Expired GB503925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE503925X 1936-10-14

Publications (1)

Publication Number Publication Date
GB503925A true GB503925A (en) 1939-04-14

Family

ID=6546115

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27980/37A Expired GB503925A (en) 1936-10-14 1937-10-14 Improvements in or relating to the reduction of iron ores in blast furnaces

Country Status (1)

Country Link
GB (1) GB503925A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852556C (en) * 1941-10-28 1952-10-16 Eisenwerke Gelsenkirchen A G Process for the production of pig iron in a shaft furnace
US2823109A (en) * 1954-10-07 1958-02-11 Sudo Koji Process for manufacturing high grade pig iron

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852556C (en) * 1941-10-28 1952-10-16 Eisenwerke Gelsenkirchen A G Process for the production of pig iron in a shaft furnace
US2823109A (en) * 1954-10-07 1958-02-11 Sudo Koji Process for manufacturing high grade pig iron

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