FR2113910A1 - Reducing phosphorus content of iron ores - by heating at 1000-1300oc and then leaching with acids or alkalis - Google Patents

Reducing phosphorus content of iron ores - by heating at 1000-1300oc and then leaching with acids or alkalis

Info

Publication number
FR2113910A1
FR2113910A1 FR7140359A FR7140359A FR2113910A1 FR 2113910 A1 FR2113910 A1 FR 2113910A1 FR 7140359 A FR7140359 A FR 7140359A FR 7140359 A FR7140359 A FR 7140359A FR 2113910 A1 FR2113910 A1 FR 2113910A1
Authority
FR
France
Prior art keywords
iron ores
alkalis
leaching
heating
acids
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.)
Withdrawn
Application number
FR7140359A
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.)
AUSTRALIAN MINERAL DEVEL
Original Assignee
AUSTRALIAN MINERAL DEVEL
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 AUSTRALIAN MINERAL DEVEL filed Critical AUSTRALIAN MINERAL DEVEL
Publication of FR2113910A1 publication Critical patent/FR2113910A1/en
Withdrawn legal-status Critical Current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
    • C22B1/11—Removing sulfur, phosphorus or arsenic other than by roasting
    • 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
    • C22B1/02—Roasting processes
    • 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

Dehydration and recrystallisation of iron oxide during heating (to alpha - Fe2O3) results in expulsion of P from the iron oxide grains and its accumulation in siliceous gangue inclusions so that it can be easily removed. The treatment is suitable for iron ores having high P content (e.g. Australian iron ores contg. 0.15% P).
FR7140359A 1970-11-11 1971-11-10 Reducing phosphorus content of iron ores - by heating at 1000-1300oc and then leaching with acids or alkalis Withdrawn FR2113910A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU316470 1970-11-11
AU588971 1971-08-13

Publications (1)

Publication Number Publication Date
FR2113910A1 true FR2113910A1 (en) 1972-06-30

Family

ID=25610032

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7140359A Withdrawn FR2113910A1 (en) 1970-11-11 1971-11-10 Reducing phosphorus content of iron ores - by heating at 1000-1300oc and then leaching with acids or alkalis

Country Status (2)

Country Link
DE (1) DE2155912A1 (en)
FR (1) FR2113910A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8287619B2 (en) 2010-06-08 2012-10-16 C.V.G. Ferrominera Orinoco C.A. Process and equipment for the production of direct reduced iron and/or pig iron from iron ores having a high-phosphorus content

Also Published As

Publication number Publication date
DE2155912A1 (en) 1972-05-25

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Legal Events

Date Code Title Description
ST Notification of lapse