EP0719346A1 - Herstellung von ilmenit durch kaltmahlen - Google Patents
Herstellung von ilmenit durch kaltmahlenInfo
- Publication number
- EP0719346A1 EP0719346A1 EP94927454A EP94927454A EP0719346A1 EP 0719346 A1 EP0719346 A1 EP 0719346A1 EP 94927454 A EP94927454 A EP 94927454A EP 94927454 A EP94927454 A EP 94927454A EP 0719346 A1 EP0719346 A1 EP 0719346A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dimethyl ammonium
- ilmenite
- milling
- additive
- titaniferous
- 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- Withdrawn
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
- 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
- C22B34/1236—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 wet processes, e.g. by leaching
- C22B34/124—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 wet processes, e.g. by leaching using acidic solutions or liquors
- C22B34/1245—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 wet processes, e.g. by leaching using acidic solutions or liquors containing a halogen ion as active agent
-
- 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
- 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
- C22B34/1236—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 wet processes, e.g. by leaching
Definitions
- the "Becher” process is also used to upgrade ilmenite - to remove iron and provide a feedstock for the "chloride route".
- ilmenite is reacted with coal and sulphur in an iron reduction kiln at 1100°C. This reaction reduces the iron in the ilmenite to the metallic form.
- the iron is rusted out in slurry form with ammonium chloride acting as a catalyst for the rusting.
- the remaining iron compounds are removed by leaching with sulphuric acid.
- the Murso process uses an oxidation of the ilmenite to convert substantially all the iron to the ferric state, then reduction of the oxidised material to convert substantially all the ferric iron to the ferrous state. These steps, of oxidation of the ilmenite followed by its reduction, produce a material which has an enhanced reactivity, from which the iron can be leached with dilute hydrochloric acid.
- the prime object of the present invention is to provide a method of treating ilmenite and other titaniferous minerals to convert such minerals into a form from which the iron content can be removed by a simple leaching process.
- That new ball mill which is described in the specification of International patent application No PCT/AU90/00471 (WIPO Publication No WO 91/04810), enables controlled-energy milling of a charge to be effected.
- the present inventors have now discovered that under certain milling conditions, ilmenite can be reduced while being converted into a nanostructural form, and that iron can be removed from this product (for example, using hydrochloric acid at a temperature of about 100 C C).
- the basic requirements of the cold milling process are: (i) that high energy milling is carried out at room temperature for a sufficient time period (up to 300 hours) to produce a powder having a nanostructural form, and (ii) that the milling is effected in the presence of suitable additives to the ball mill charge.
- the milling is carried out in a ball mill of the type described and claimed in the specification of International patent application No PCT/AU90/00471.
- simple milling of ilmenite did not produce a reactive nanostructural form of the mineral.
- milling ilmenite with an additive to the ball mill charge did yield a reactive nanostructural product.
- the milled samples were then leached with no further treatment.
- the composition of each sample was assessed using one or more of the following techniques: x-ray diffraction; Mossbauer spectroscopy; transmission and scanning electron microscopy; atomic absorption spectrometry; Rutherford backscattering spectrometry.
- structural development of the as-milled samples was monitored by x-ray diffraction of cobalt K ⁇ radiation using a Phillips diffractometer, and Rutherford backscattering spectrometry was used to analyse the presence of iron in chemically leached samples.
- the pH was adjusted to a value of 5, which corresponds to positively charged ilmenite particles, in order to get adsorption of the anionic surfactant SDDS.
- Potassium hydroxide and potassium chloride were used for pH adjustment.
- No adjustment of the pH of the aqueous solution was necessary for experiments with the additive DDAOH.
- the nanostructural ilmenite products obtained by milling the ilmenite with the additives (i) DDAOH, (ii) SDDS and (iii) amorphous boron, were leached with 4M hydrochloric acid at temperatures ranging from 80°C to 100°C.
- the Rutherford backscattering spectroscopy spectra of the leached materials showed
Landscapes
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPM117793 | 1993-09-13 | ||
AUPM1177/93 | 1993-09-13 | ||
PCT/AU1994/000550 WO1995008004A1 (en) | 1993-09-13 | 1994-09-13 | Ilmenite processing using cold milling |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0719346A1 true EP0719346A1 (de) | 1996-07-03 |
EP0719346A4 EP0719346A4 (de) | 1997-05-07 |
Family
ID=3777190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94927454A Withdrawn EP0719346A4 (de) | 1993-09-13 | 1994-09-13 | Herstellung von ilmenit durch kaltmahlen |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0719346A4 (de) |
JP (1) | JPH09504829A (de) |
CA (1) | CA2169947A1 (de) |
NZ (1) | NZ273552A (de) |
WO (1) | WO1995008004A1 (de) |
ZA (1) | ZA947050B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10124523A1 (de) * | 2001-05-19 | 2002-11-21 | Deutsche Telekom Ag | Verfahren zur Darstellung mehrerer elektronisch gespeicherter Seiten |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996010653A1 (en) * | 1994-10-04 | 1996-04-11 | The Australian National University | Treatment of minerals for extraction of zirconium |
ATE200236T1 (de) | 1995-08-28 | 2001-04-15 | Advanced Nano Technologies Pty | Verfahren zur herstellung ultrafeiner teilchen |
US6375923B1 (en) | 1999-06-24 | 2002-04-23 | Altair Nanomaterials Inc. | Processing titaniferous ore to titanium dioxide pigment |
US6440383B1 (en) | 1999-06-24 | 2002-08-27 | Altair Nanomaterials Inc. | Processing aqueous titanium chloride solutions to ultrafine titanium dioxide |
US6548039B1 (en) | 1999-06-24 | 2003-04-15 | Altair Nanomaterials Inc. | Processing aqueous titanium solutions to titanium dioxide pigment |
DE10249163A1 (de) * | 2002-10-22 | 2004-05-06 | Plath, Peter Jörg, Prof.Dr. | Verfahren und Vorrichtung zur Nutzung von Faraday-Instabilitäten zur Durchführung von tribochemischen Reaktionen |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB714857A (en) * | 1951-08-30 | 1954-09-01 | British Titan Products | Improvements in or relating to the manufacture of titanium dioxide pigments from mineral rutile ores |
DE3721509A1 (de) * | 1987-06-30 | 1989-01-12 | Kloeckner Humboldt Deutz Ag | Verfahren und vorrichtung zur laugung von metallhaltigen, nicht vorgetrockneten rohstoffen |
WO1991004810A1 (en) * | 1989-10-03 | 1991-04-18 | The Australian National University | Ball milling apparatus and method, and production of metallic amorphous materials |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1103379A (en) * | 1976-05-19 | 1981-06-16 | Willy Manfroy | Process for wet grinding non-organic or fossilized organic minerals |
BR7800585A (pt) * | 1978-01-31 | 1979-08-21 | Vale Do Rio Doce Co | Processo de obtencao de concentrados mecanicos de anatasio |
US4175952A (en) * | 1978-07-19 | 1979-11-27 | Uop Inc. | Recovery of iron and titanium metal values |
US4197276A (en) * | 1978-07-31 | 1980-04-08 | Uop Inc. | Recovery of titanium metal values |
US4175110A (en) * | 1978-08-22 | 1979-11-20 | Uop Inc. | Recovery of titanium metal values |
-
1994
- 1994-09-13 CA CA002169947A patent/CA2169947A1/en not_active Abandoned
- 1994-09-13 NZ NZ273552A patent/NZ273552A/en unknown
- 1994-09-13 WO PCT/AU1994/000550 patent/WO1995008004A1/en not_active Application Discontinuation
- 1994-09-13 EP EP94927454A patent/EP0719346A4/de not_active Withdrawn
- 1994-09-13 JP JP7508867A patent/JPH09504829A/ja active Pending
- 1994-09-13 ZA ZA947050A patent/ZA947050B/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB714857A (en) * | 1951-08-30 | 1954-09-01 | British Titan Products | Improvements in or relating to the manufacture of titanium dioxide pigments from mineral rutile ores |
DE3721509A1 (de) * | 1987-06-30 | 1989-01-12 | Kloeckner Humboldt Deutz Ag | Verfahren und vorrichtung zur laugung von metallhaltigen, nicht vorgetrockneten rohstoffen |
WO1991004810A1 (en) * | 1989-10-03 | 1991-04-18 | The Australian National University | Ball milling apparatus and method, and production of metallic amorphous materials |
Non-Patent Citations (1)
Title |
---|
See also references of WO9508004A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10124523A1 (de) * | 2001-05-19 | 2002-11-21 | Deutsche Telekom Ag | Verfahren zur Darstellung mehrerer elektronisch gespeicherter Seiten |
Also Published As
Publication number | Publication date |
---|---|
EP0719346A4 (de) | 1997-05-07 |
WO1995008004A1 (en) | 1995-03-23 |
JPH09504829A (ja) | 1997-05-13 |
ZA947050B (en) | 1995-08-07 |
CA2169947A1 (en) | 1995-03-23 |
NZ273552A (en) | 1996-12-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5171631B2 (ja) | チタン鉱石の選鉱 | |
US6699446B2 (en) | Methods for separation of titanium from ore | |
CA2480865C (en) | Acid beneficiation of ore | |
US3784670A (en) | Titanium dixide concentrate and its manufacturing process | |
WO1995024510A1 (en) | Leaching of titaniferous materials | |
US5411574A (en) | Titanium extraction | |
US4089675A (en) | Combination beneficiation ilmenite digestion liquor reduction process | |
JPH08500393A (ja) | チタン鉄材料の品質改善 | |
WO1995008004A1 (en) | Ilmenite processing using cold milling | |
US5378438A (en) | Benefication of titaniferous ores | |
Liu et al. | Mechanochemical decomposition on (rare earth) bastnaesite concentrate in NaOH solution | |
US6090354A (en) | Process for the production of titanium oxide | |
DE69026608T2 (de) | Verfahren zur Herstellung von synthetischem Rutil aus titanhaltiger Schlacke, die Magnesium enthält | |
US2954278A (en) | Production of rutile from ilmenite and related ores | |
AU7689294A (en) | Ilmenite processing using cold milling | |
US3416885A (en) | Process for producing a titanium sulfate solution and a tio2 concentrate from a titaniferous ore | |
US3094386A (en) | Process for the manufacture of titanium dioxide | |
EP0869194B1 (de) | Verfahren zur Herstellung von Titandioxid | |
DE69302380T2 (de) | Verfahren zur anreicherung von titanin eisenenthaltenden stoffen | |
DE69016936T2 (de) | Verfahren zur Anreicherung von Titan in eisenenthaltenden Stoffen. | |
JPH09124318A (ja) | チタン含有鉱石から放射性核種を除去する方法 | |
CA2289967C (en) | Methods for separation of titanium from ore | |
AU2485892A (en) | Titanium extraction | |
WO1996010653A1 (en) | Treatment of minerals for extraction of zirconium |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19960301 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 19970319 |
|
AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19970503 |