WO1993010271A3 - Improvement of the reduction process in p content and other gangues in iron ore and its agglomerates - Google Patents

Improvement of the reduction process in p content and other gangues in iron ore and its agglomerates Download PDF

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Publication number
WO1993010271A3
WO1993010271A3 PCT/BR1991/000030 BR9100030W WO9310271A3 WO 1993010271 A3 WO1993010271 A3 WO 1993010271A3 BR 9100030 W BR9100030 W BR 9100030W WO 9310271 A3 WO9310271 A3 WO 9310271A3
Authority
WO
WIPO (PCT)
Prior art keywords
gangues
agglomerates
improvement
content
hematite
Prior art date
Application number
PCT/BR1991/000030
Other languages
French (fr)
Other versions
WO1993010271A2 (en
Inventor
Galbas Madeira Peixoto
Original Assignee
Minerac O Da Trindade Samitri
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 Minerac O Da Trindade Samitri filed Critical Minerac O Da Trindade Samitri
Publication of WO1993010271A2 publication Critical patent/WO1993010271A2/en
Publication of WO1993010271A3 publication Critical patent/WO1993010271A3/en

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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
    • C22B1/02—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
    • 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

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  • 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)
  • Manufacture Of Iron (AREA)

Abstract

This invention is directed to an inprovement of the process reduction of P contents and other gangues in iron ores and its agglomerates, in which during thermic pretreatment phase ore is subjected to agglomeration (briquetting, pelletizing sintering) before making it undergo the leaching process with hydrochloric acid, hydrochloric gas, chlorides or their by-products. Thermic treatment at 1200 °C causes a structural rearrangement of hematite and goethite (the latter becoming hematite) so that its dissolution with mineral mineral acids becomes difficult. At the same time, there is a migration of associated gangues to the surface of the particles, thus facilitating the attack and its dissolution with mineral acids.
PCT/BR1991/000030 1991-11-14 1991-12-27 Improvement of the reduction process in p content and other gangues in iron ore and its agglomerates WO1993010271A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR919105035A BR9105035A (en) 1991-11-14 1991-11-14 IMPROVEMENT IN THE PROCESS OF REDUCING THE CONTENTS OF P AND OTHER GANGS IN IRON MINES AND ITS AGGLOMERATES
BRPI9105035 1991-11-14

Publications (2)

Publication Number Publication Date
WO1993010271A2 WO1993010271A2 (en) 1993-05-27
WO1993010271A3 true WO1993010271A3 (en) 1993-09-30

Family

ID=4053263

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR1991/000030 WO1993010271A2 (en) 1991-11-14 1991-12-27 Improvement of the reduction process in p content and other gangues in iron ore and its agglomerates

Country Status (3)

Country Link
AU (1) AU9111791A (en)
BR (1) BR9105035A (en)
WO (1) WO1993010271A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE516374T1 (en) * 2005-08-09 2011-07-15 Murrin Murrin Operations Pty Ltd HYDROMETALLURGICAL PROCESS FOR EXTRACTING NICKEL AND COBALT FROM LATERITE ORE
AU2009279362B2 (en) * 2008-08-05 2014-10-09 Technological Resources Pty. Limited Treating iron ore
AU2010225450C1 (en) * 2009-03-16 2013-11-21 Commonwealth Scientific And Industrial Research Organisation Impurity removal from hydrated minerals
CN117567058B (en) * 2023-10-23 2024-07-19 新特新材料集团(河南)股份有限公司 Modified gangue admixture for concrete and preparation method and application thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US400622A (en) * 1889-04-02 Process of dephosphorizing iron ore
US1237765A (en) * 1917-01-12 1917-08-21 Frederic A Eustis Method of treating iron ore.
US3499837A (en) * 1967-11-20 1970-03-10 Johns Manville Waste water treatment phosphate removal by iron oxide
US3876748A (en) * 1971-10-06 1975-04-08 Int Nickel Co Extraction of metals from iron oxide materials
US3928024A (en) * 1971-02-01 1975-12-23 Exxon Research Engineering Co Ore pretreatment process
JPS5767136A (en) * 1980-10-09 1982-04-23 Sumitomo Metal Ind Ltd Dephosphorizing method for ore
US4474736A (en) * 1981-04-29 1984-10-02 Comalco Aluminum Limited Treatment of aluminous materials
US4613361A (en) * 1983-04-27 1986-09-23 Uranium Pechiney High-temperature pretreatment by means of an alkaline aqueous solution of ores having an argillaceous gangue containing at least one usable element
US4954322A (en) * 1988-07-29 1990-09-04 Metaleurop S.A. Process for the recovery of metal values contained in a gangue

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US400622A (en) * 1889-04-02 Process of dephosphorizing iron ore
US1237765A (en) * 1917-01-12 1917-08-21 Frederic A Eustis Method of treating iron ore.
US3499837A (en) * 1967-11-20 1970-03-10 Johns Manville Waste water treatment phosphate removal by iron oxide
US3928024A (en) * 1971-02-01 1975-12-23 Exxon Research Engineering Co Ore pretreatment process
US3876748A (en) * 1971-10-06 1975-04-08 Int Nickel Co Extraction of metals from iron oxide materials
JPS5767136A (en) * 1980-10-09 1982-04-23 Sumitomo Metal Ind Ltd Dephosphorizing method for ore
US4474736A (en) * 1981-04-29 1984-10-02 Comalco Aluminum Limited Treatment of aluminous materials
US4548795A (en) * 1981-04-29 1985-10-22 Comalco Aluminum Limited Treatment of aluminous materials
US4613361A (en) * 1983-04-27 1986-09-23 Uranium Pechiney High-temperature pretreatment by means of an alkaline aqueous solution of ores having an argillaceous gangue containing at least one usable element
US4954322A (en) * 1988-07-29 1990-09-04 Metaleurop S.A. Process for the recovery of metal values contained in a gangue

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AMDEL BULL., "Amdephos-A Chemical Process for Dephosphorization of Iron Ore", (1976), 19, 21-33. *
ERZMETALL, "Dephosphorization of High Phosphorous Ores by Acid Leaching", 34(6), (1981), 316-22. *

Also Published As

Publication number Publication date
AU9111791A (en) 1993-06-15
WO1993010271A2 (en) 1993-05-27
BR9105035A (en) 1993-05-18

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