CA2302712A1 - Process for the preparation of high grade synthetic rutile and pig iron - Google Patents

Process for the preparation of high grade synthetic rutile and pig iron Download PDF

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Publication number
CA2302712A1
CA2302712A1 CA002302712A CA2302712A CA2302712A1 CA 2302712 A1 CA2302712 A1 CA 2302712A1 CA 002302712 A CA002302712 A CA 002302712A CA 2302712 A CA2302712 A CA 2302712A CA 2302712 A1 CA2302712 A1 CA 2302712A1
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CA
Canada
Prior art keywords
pig iron
ilmenite
synthetic rutile
product
preparation
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.)
Granted
Application number
CA002302712A
Other languages
French (fr)
Other versions
CA2302712C (en
Inventor
Pawvathu Narayanan Nair Mohan Das
Karval Harikrishna Bhat
Melay Eriyat Kochu Janaki
Sreedharan Sasibhushanan
Parthasarathi Mukherjee
Bishnu Charan Rabindha Mohanty
Hem Shanker Ray
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.)
Council of Scientific and Industrial Research CSIR
Original Assignee
Council of Scientific and Industrial Research CSIR
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 Council of Scientific and Industrial Research CSIR filed Critical Council of Scientific and Industrial Research CSIR
Priority to CA002302712A priority Critical patent/CA2302712C/en
Publication of CA2302712A1 publication Critical patent/CA2302712A1/en
Application granted granted Critical
Publication of CA2302712C publication Critical patent/CA2302712C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1204—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 preliminary treatment of ores or scrap to eliminate non- titanium constituents, e.g. iron, without attacking the titanium constituent
    • C22B34/1209—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 preliminary treatment of ores or scrap to eliminate non- titanium constituents, e.g. iron, without attacking the titanium constituent by dry processes, e.g. with selective chlorination of iron or with formation of a titanium bearing slag
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/0475—Purification
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/10—Hydrochloric acid, other halogenated acids or salts thereof
    • 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
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1218—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by dry 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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/005—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys using plasma jets
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

The present invention relates to an improved process for the preparation of high grade synthetic rutile from ilmenite with pig iron as a by-product. The process comprises subjecting ilmenite to reduction with coal, cooling and removing unreacted coal to obtain a product having 80-95 % metallisation, smelting the metallised ilmenite mixed with less than 10% carbon (w/w) in a transferred arc plasma using arc current, under flow of inert gas for a fixed time. The metal is then separated as pig iron and TiO2 as slag, the slag ground followed by oxidation at high temperature in the presence of an oxidising gas, the oxidised product being leached with dilute HCl followed by filtration, washing and drying to obtain synthetic rutile.
CA002302712A 2000-03-24 2000-03-24 Process for the preparation of high grade synthetic rutile and pig iron Expired - Fee Related CA2302712C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002302712A CA2302712C (en) 2000-03-24 2000-03-24 Process for the preparation of high grade synthetic rutile and pig iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002302712A CA2302712C (en) 2000-03-24 2000-03-24 Process for the preparation of high grade synthetic rutile and pig iron

Publications (2)

Publication Number Publication Date
CA2302712A1 true CA2302712A1 (en) 2001-09-24
CA2302712C CA2302712C (en) 2008-11-18

Family

ID=4165662

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002302712A Expired - Fee Related CA2302712C (en) 2000-03-24 2000-03-24 Process for the preparation of high grade synthetic rutile and pig iron

Country Status (1)

Country Link
CA (1) CA2302712C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106086478A (en) * 2016-06-21 2016-11-09 昆明冶金研究院 A kind of method utilizing Yunnan ilmenite concentrate to produce reduced iron powder coproduction rich-titanium material
WO2018018069A1 (en) * 2016-07-29 2018-02-01 Goondicum Resources Pty Ltd A metallurgical process for upgrading ferro-titaniferous mineral concentrate using time dependent magnetic fields

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106086478A (en) * 2016-06-21 2016-11-09 昆明冶金研究院 A kind of method utilizing Yunnan ilmenite concentrate to produce reduced iron powder coproduction rich-titanium material
WO2018018069A1 (en) * 2016-07-29 2018-02-01 Goondicum Resources Pty Ltd A metallurgical process for upgrading ferro-titaniferous mineral concentrate using time dependent magnetic fields
AU2017301099B2 (en) * 2016-07-29 2019-02-21 RMM Capital Pty Ltd A metallurgical process for upgrading ferro-titaniferous mineral concentrate using time dependent magnetic fields

Also Published As

Publication number Publication date
CA2302712C (en) 2008-11-18

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Effective date: 20170324