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WO1997046724A1 - Procede d'obtention de chromite enrichie en chrome a partir de minerais contenant de la chromite - Google Patents

Procede d'obtention de chromite enrichie en chrome a partir de minerais contenant de la chromite Download PDF

Info

Publication number
WO1997046724A1
WO1997046724A1 PCT/CA1996/000347 CA9600347W WO9746724A1 WO 1997046724 A1 WO1997046724 A1 WO 1997046724A1 CA 9600347 W CA9600347 W CA 9600347W WO 9746724 A1 WO9746724 A1 WO 9746724A1
Authority
WO
WIPO (PCT)
Prior art keywords
chromite
ores
digesting
dry
chromium
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.)
Ceased
Application number
PCT/CA1996/000347
Other languages
English (en)
Inventor
Jean-Marc Lalancette
Mario Bergeron
François BOSSE
Cyril Clerk
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.)
UG Plus International Inc
Original Assignee
UG Plus International Inc
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 UG Plus International Inc filed Critical UG Plus International Inc
Priority to AU58068/96A priority Critical patent/AU5806896A/en
Priority to PCT/CA1996/000347 priority patent/WO1997046724A1/fr
Publication of WO1997046724A1 publication Critical patent/WO1997046724A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C22B1/02—Roasting processes
    • C22B1/08—Chloridising 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium

Definitions

  • the present invention relates to a process for
  • elemental chromium is made from the chromium III oxide
  • chromium III oxide either as chromite of high chromium
  • chromite is used as the starting material.
  • steps of this process consist in first fusing the
  • the dichromate is
  • hydrochloric acid can be removed by acid washing from the
  • the present invention therefore relates to a
  • chlorinating step is conducted in the presence of sodium
  • the chromite ores In one form of the invention, the chromite ores
  • the digesting step is carried out in the presence of heat.
  • Figure 1 is a block diagram illustrating the
  • the chromite ore may be upgraded prior to chlorination so as to give an enriched
  • the ground ore can be heated to the selected
  • the hot ore is then introduced in the dry
  • chromite and base metals such as iron, nickel and copper
  • the chlorine stream can be diluted by a carrier gas, such as nitrogen for example.
  • a carrier gas such as nitrogen for example.
  • the dry chlorination can be
  • hydrochloric acid at a concentration of 6M.
  • the hematite By acid leach in hydrochloric acid, the hematite can be
  • the material can be used as such, being an
  • bottoms of this distillation contain the iron, the chromium and the base metals (Ni, Cu, etc ..) that have
  • solids were investigated by x-rays diffraction, optical microscopy and scanning electron microscopy (SEM) coupled to an energy dispersive system (EDX) .
  • SEM scanning electron microscopy
  • EDX energy dispersive system
  • step may be carried out after the pre-heating step illustrated in the diagram. It is therefore wished to

Landscapes

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

Abstract

Cette invention se rapporte à un procédé d'obtention de chromite enrichie en chrome à partir de minerais contenant de la chromite. Ledit procédé consiste à chlorer à sec les minerais à une température comprise entre 400 °C et 750 °C de manière à obtenir un substrat chloré contenant de l'oxyde ferrique soluble dans l'acide, du chlorure ferrique soluble dans l'acide, et de la chromite enrichie en chrome insoluble dans l'acide, à traiter le substrat chloré avec de l'acide chlorhydrique de manière à dissoudre l'oxyde ferrique et le chlorure ferrique et à récupérer la chromite enrichie en chrome.
PCT/CA1996/000347 1996-05-31 1996-05-31 Procede d'obtention de chromite enrichie en chrome a partir de minerais contenant de la chromite Ceased WO1997046724A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU58068/96A AU5806896A (en) 1996-05-31 1996-05-31 Process for obtaining chromium enriched chromite from chromite ores
PCT/CA1996/000347 WO1997046724A1 (fr) 1996-05-31 1996-05-31 Procede d'obtention de chromite enrichie en chrome a partir de minerais contenant de la chromite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA1996/000347 WO1997046724A1 (fr) 1996-05-31 1996-05-31 Procede d'obtention de chromite enrichie en chrome a partir de minerais contenant de la chromite

Publications (1)

Publication Number Publication Date
WO1997046724A1 true WO1997046724A1 (fr) 1997-12-11

Family

ID=4173154

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1996/000347 Ceased WO1997046724A1 (fr) 1996-05-31 1996-05-31 Procede d'obtention de chromite enrichie en chrome a partir de minerais contenant de la chromite

Country Status (2)

Country Link
AU (1) AU5806896A (fr)
WO (1) WO1997046724A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004070066A1 (fr) * 2003-02-06 2004-08-19 Ressources Minieres Pro-Or Inc. Procede permettant d'accroitre le rapport chrome-fer des produits chromites
WO2005007903A1 (fr) * 2003-07-22 2005-01-27 Ressources Minieres Pro-Or Inc. Procede de recuperation de metaux du groupe platine a partir de minerais et de concentres
RU2341574C1 (ru) * 2007-06-20 2008-12-20 Государственное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" Способ обогащения магнезиальных хромитовых руд
US7658894B2 (en) 2003-02-06 2010-02-09 Ressources Minieres Pro-Or Inc. Method for increasing the chrome to iron ratio of chromites products

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2312912C2 (ru) * 2006-02-08 2007-12-20 Игорь Александрович Богданов Способ получения хромитового концентрата
RU2535254C1 (ru) * 2013-10-31 2014-12-10 Игорь Александрович Фарбер Способ комплексной переработки серпентин-хромитового рудного сырья

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB179201A (en) * 1920-10-28 1922-04-28 William Henry Dyson Improvements in the purification of metallic ores and residues containing metallic oxdes
DE1135668B (de) * 1951-03-07 1962-08-30 Walter M Weil Verfahren zur Gewinnung von Chrom und Eisen aus Chrom-Eisen-Erzen
BE644377A (fr) * 1964-02-26 1964-06-15
DE1191971B (de) * 1959-06-18 1965-04-29 Haalmer Corp Verfahren zur selektiven Extraktion des Eisens aus Chromiterzen
US3892639A (en) * 1974-09-11 1975-07-01 Us Interior Extraction of metal values from lateritic ores
GB2001042A (en) * 1977-07-12 1979-01-24 Toyo Soda Mfg Co Ltd Process for producing metallic chromium
EP0016516A1 (fr) * 1979-02-21 1980-10-01 Laporte Industries Limited Procédé pour l'enrichissement de matériaux contenant du fer et produit obtenu par ce procédé

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB179201A (en) * 1920-10-28 1922-04-28 William Henry Dyson Improvements in the purification of metallic ores and residues containing metallic oxdes
DE1135668B (de) * 1951-03-07 1962-08-30 Walter M Weil Verfahren zur Gewinnung von Chrom und Eisen aus Chrom-Eisen-Erzen
DE1191971B (de) * 1959-06-18 1965-04-29 Haalmer Corp Verfahren zur selektiven Extraktion des Eisens aus Chromiterzen
BE644377A (fr) * 1964-02-26 1964-06-15
US3892639A (en) * 1974-09-11 1975-07-01 Us Interior Extraction of metal values from lateritic ores
GB2001042A (en) * 1977-07-12 1979-01-24 Toyo Soda Mfg Co Ltd Process for producing metallic chromium
EP0016516A1 (fr) * 1979-02-21 1980-10-01 Laporte Industries Limited Procédé pour l'enrichissement de matériaux contenant du fer et produit obtenu par ce procédé

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004070066A1 (fr) * 2003-02-06 2004-08-19 Ressources Minieres Pro-Or Inc. Procede permettant d'accroitre le rapport chrome-fer des produits chromites
US7658894B2 (en) 2003-02-06 2010-02-09 Ressources Minieres Pro-Or Inc. Method for increasing the chrome to iron ratio of chromites products
WO2005007903A1 (fr) * 2003-07-22 2005-01-27 Ressources Minieres Pro-Or Inc. Procede de recuperation de metaux du groupe platine a partir de minerais et de concentres
AU2004257315B2 (en) * 2003-07-22 2009-03-12 Ressources Minieres Pro-Or Inc. A process for recovering platinum group metals from ores and concentrates
US7972412B2 (en) * 2003-07-22 2011-07-05 Ressources Minieres Pro-Or Inc. Process for recovering platinum group metals from ores and concentrates
RU2341574C1 (ru) * 2007-06-20 2008-12-20 Государственное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" Способ обогащения магнезиальных хромитовых руд

Also Published As

Publication number Publication date
AU5806896A (en) 1998-01-05

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