FR2102485A5 - Prereduced chrome ore agglomerates - of porous structure for simple final redn - Google Patents

Prereduced chrome ore agglomerates - of porous structure for simple final redn

Info

Publication number
FR2102485A5
FR2102485A5 FR7028890A FR7028890A FR2102485A5 FR 2102485 A5 FR2102485 A5 FR 2102485A5 FR 7028890 A FR7028890 A FR 7028890A FR 7028890 A FR7028890 A FR 7028890A FR 2102485 A5 FR2102485 A5 FR 2102485A5
Authority
FR
France
Prior art keywords
redn
prereduced
chrome ore
porous structure
final
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
FR7028890A
Other languages
French (fr)
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.)
Ugine Kuhlmann SA
Original Assignee
Ugine Kuhlmann SA
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 Ugine Kuhlmann SA filed Critical Ugine Kuhlmann SA
Priority to FR7028890A priority Critical patent/FR2102485A5/en
Application granted granted Critical
Publication of FR2102485A5 publication Critical patent/FR2102485A5/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
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • 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

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

Finely divided chrome ore, a reductant (pref. coke) and a binder of Na and/or Ca lignosulphite (e.g. paper pulping waste liquor) is pressed into pellets and prereduced at 100-300 degrees C. Final redn. is at 1150-1200 degrees C to form Cr powder used in alloy prodn. More rapid and efficient final redn. is achieved.
FR7028890A 1970-08-05 1970-08-05 Prereduced chrome ore agglomerates - of porous structure for simple final redn Expired FR2102485A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7028890A FR2102485A5 (en) 1970-08-05 1970-08-05 Prereduced chrome ore agglomerates - of porous structure for simple final redn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7028890A FR2102485A5 (en) 1970-08-05 1970-08-05 Prereduced chrome ore agglomerates - of porous structure for simple final redn

Publications (1)

Publication Number Publication Date
FR2102485A5 true FR2102485A5 (en) 1972-04-07

Family

ID=9059825

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7028890A Expired FR2102485A5 (en) 1970-08-05 1970-08-05 Prereduced chrome ore agglomerates - of porous structure for simple final redn

Country Status (1)

Country Link
FR (1) FR2102485A5 (en)

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Legal Events

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CL Concession to grant licenses
CD Change of name or company name
ST Notification of lapse