GB828412A - Process for agglomerating iron concentrates - Google Patents

Process for agglomerating iron concentrates

Info

Publication number
GB828412A
GB828412A GB20557/58A GB2055758A GB828412A GB 828412 A GB828412 A GB 828412A GB 20557/58 A GB20557/58 A GB 20557/58A GB 2055758 A GB2055758 A GB 2055758A GB 828412 A GB828412 A GB 828412A
Authority
GB
United Kingdom
Prior art keywords
aggregate
moisture
carbon dioxide
green
ageing
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
GB20557/58A
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.)
RI N CORP
Original Assignee
RI N 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 RI N CORP filed Critical RI N CORP
Publication of GB828412A publication Critical patent/GB828412A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A process for preparing hardened aggregates from loose, finely divided reduced iron concentrate material containing an appreciable amount of metallic iron comprises the steps of agglomerating the material to form a green aggregate, treating the green aggregate with carbon dioxide and moisture, and ageing the treated aggregate in the presence of an oxygen-containing gas to convert the green aggregate to a hard aggregate. Finely ground reduced iron ore containing at least 60% metallic iron and 1% moisture is pressed into briquettes using pressures between 500 and 100,000 pounds square inch and then treated with carbon dioxide followed by ageing in air. Part of the moisture may be added simultaneously with the carbon dioxide. Pre-reduction may take place in a rotary kiln and treatment with CO2 may be at atmospheric pressure or above.
GB20557/58A 1957-10-04 1958-06-26 Process for agglomerating iron concentrates Expired GB828412A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US828412XA 1957-10-04 1957-10-04

Publications (1)

Publication Number Publication Date
GB828412A true GB828412A (en) 1960-02-17

Family

ID=22173789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20557/58A Expired GB828412A (en) 1957-10-04 1958-06-26 Process for agglomerating iron concentrates

Country Status (1)

Country Link
GB (1) GB828412A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097292A2 (en) * 1982-06-22 1984-01-04 Thyssen Aktiengesellschaft vorm. August Thyssen-Hütte Process and installation for making binderless heating briquettes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097292A2 (en) * 1982-06-22 1984-01-04 Thyssen Aktiengesellschaft vorm. August Thyssen-Hütte Process and installation for making binderless heating briquettes
EP0097292A3 (en) * 1982-06-22 1985-01-30 Thyssen Aktiengesellschaft Vorm. August Thyssen-Hutte Process and installation for making binderless heating briquettes

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