WO2006048283 PROCESS AND PLANT FOR PRODUCING TITANIA SLAG FROM ILMENITE

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Publication Number WO/2006/048283

Publication Date 11.05.2006

International Application No. PCT/EP2005/011761

International Filing Date 03.11.2005

Chapter 2 Demand Filed 30.08.2006

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Applicants

OUTOTEC OYJ [FI]/[FI] (AllExceptUS)
JOKINEN, Petri [FI]/[FI] (UsOnly)
BEYZAVI, Ali-Naghi [DE]/[DE] (UsOnly)
FORMANEK, Lothar [DE]/[DE] (UsOnly)

Inventors

JOKINEN, Petri
BEYZAVI, Ali-Naghi
FORMANEK, Lothar

Agents

KEIL & SCHAAFHAUSEN

Priority Data

10 2004 053 676.7

03.11.2004

Publication Language English (en)

Filing Language English (EN)

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Title

(EN) PROCESS AND PLANT FOR PRODUCING TITANIA SLAG FROM ILMENITE

(FR) PROCEDE ET INSTALLATION POUR PRODUIRE DU LAITIER D'OXYDE DE TITANE A PARTIR D'ILMENITE

Abstract

(EN) In a process for producing titania slag from ilmenite, granular ilmenite first is partially reduced with a reducing agent in a reduction reactor, then the hot material with an inlet temperature of at least 550°C is transferred into an electric furnace and molten there in the presence of a reducing agent by forming liquid pig iron and titania slag. The reduction reactor consists of a circulating fluidized-bed reactor.

(FR) Dans le cadre d'un procédé pour produire du laitier d'oxyde de titane à partir d'ilménite, de l'ilménite granulaire est tout d'abord réduit partiellement au moyen d'un agent réducteur dans un réacteur de réduction, puis la matière chaude à une température d'entrée d'au moins 550 °C, est transférée dans un four électrique dans lequel elle est fondue en la présence d'un agent réducteur par formation de fonte brute liquide et de laitier d'oxyde de titane. Le réacteur de réduction est un réacteur à lit fluidisé mobile.

C	CHEMISTRY; METALLURGY
22	METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B	PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
34	Obtaining refractory metals
10	Obtaining titanium, zirconium or hafnium
12	Obtaining titanium

C	CHEMISTRY; METALLURGY
22	METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B	PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
5	General processes of reducing to metals
02	Dry processes
12	by gases
14	fluidised material

C	CHEMISTRY; METALLURGY
22	METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B	PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
34	Obtaining refractory metals
10	Obtaining titanium, zirconium or hafnium
12	Obtaining titanium

C	CHEMISTRY; METALLURGY
22	METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B	PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
5	General processes of reducing to metals
02	Dry processes
12	by gases
14	fluidised material

C	CHEMISTRY; METALLURGY
22	METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B	PRODUCTION AND REFINING OF METALS
34	Obtaining refractory metals
10	Obtaining titanium, zirconium or hafnium
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
1204	preliminary treatment of ores or scrap to eliminate non- titanium constituents, e.g. iron, without attacking the titanium constituent
1209	by dry processes, e.g. with selective chlorination of iron or with formation of a titanium bearing slag

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1. WO2006048283 - PROCESS AND PLANT FOR PRODUCING TITANIA SLAG FROM ILMENITE