JP5044091B2 - 電解セル内での金属酸化物の還元 - Google Patents
電解セル内での金属酸化物の還元 Download PDFInfo
- Publication number
- JP5044091B2 JP5044091B2 JP2003508746A JP2003508746A JP5044091B2 JP 5044091 B2 JP5044091 B2 JP 5044091B2 JP 2003508746 A JP2003508746 A JP 2003508746A JP 2003508746 A JP2003508746 A JP 2003508746A JP 5044091 B2 JP5044091 B2 JP 5044091B2
- Authority
- JP
- Japan
- Prior art keywords
- potential
- cell
- electrolyte
- cathode
- titanium oxide
- 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.)
- Expired - Fee Related
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/26—Electrolytic production, recovery or refining of metals by electrolysis of melts of titanium, zirconium, hafnium, tantalum or vanadium
- C25C3/28—Electrolytic production, recovery or refining of metals by electrolysis of melts of titanium, zirconium, hafnium, tantalum or vanadium of titanium
-
- 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
- C22B34/129—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 metallic titanium from titanium compounds by dissociation, e.g. thermic dissociation of titanium tetraiodide, or by electrolysis or with the use of an electric arc
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrolytic Production Of Metals (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Removal Of Specific Substances (AREA)
Description
「上記第二の利点は、部分的には、特許請求の範囲記載の発明が電解質の分解電位よりも低い電位で実施されることにより得られる。もしそれよりも高い電位で実施されれば、D1およびD2で述べているように、電解質中の陽イオンは金属化合物あるいは半金属化合物上に沈着する。D1に記載される例では、このことはカルシウムの沈着を意味し、従ってこの反応性の金属の消費を意味する。この方法の実施されている間、電解用の陽イオンは陰極上に沈着しないことになる。」
Claims (4)
- 陽極と、少なくとも部分的に酸化チタンで構成される陰極と、電解質の成分のひとつとしてCaOを含む溶融CaCl2系電解質と、を有する電解セル内において、固体状態で存在する酸化チタンを還元する方法であって;
温度が600〜1100℃の範囲で、グラファイト陽極を使用し、セル電位は1.3〜3.5Vであるように、すなわち、金属Caが陰極上に沈着できる電位よりは高い、すなわちCaO分解電位より高く、CaCl 2 分解電位よりは低い電位で電解セルを運転する工程を包含し、これにより同金属は陰極の酸化チタンを化学的に還元し;
更に高純度のチタン(αTi)を得るために、セル内酸化チタン中の酸素濃度が低下するに従い同セル内での反応の点からセル運転の後半の段階で電解質を再生することおよびセル電位をより高い電位に変更することを特徴とし、
しかも、陰極上に沈着した前記金属は、電解質内に溶解性でありまたそれに溶解することにより陰極の酸化チタンの近傍まで移動できることを特徴とする、酸化チタンを還元する方法。 - 前記CaCl2系電解質は、加熱により部分的に分解してCaOを生成したりあるいはCaOを元々含む商業的に入手可能なCaCl2の原料(例えば塩化カルシウムの二水和物)から製造されることを特徴とする請求項1の方法。
- 前記CaCl2系電解質は、別々に追加されるかあるいは事前に混合されて電解質を構成するCaCl2とCaOを含むことを特徴とする請求項1あるいは2の方法。
- 前記電解セルを一定の電流で運転する、請求項1〜3のいずれかの方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPR6029 | 2001-06-29 | ||
AUPR6029A AUPR602901A0 (en) | 2001-06-29 | 2001-06-29 | Removal of oxygen from metals oxides and solid metal solutions |
PCT/AU2002/000843 WO2003002785A1 (en) | 2001-06-29 | 2002-06-28 | Reduction of metal oxides in an electrolytic cell |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012034079A Division JP5461601B2 (ja) | 2001-06-29 | 2012-02-20 | 電解セル内での金属酸化物の還元 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004530798A JP2004530798A (ja) | 2004-10-07 |
JP5044091B2 true JP5044091B2 (ja) | 2012-10-10 |
Family
ID=3829995
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003508746A Expired - Fee Related JP5044091B2 (ja) | 2001-06-29 | 2002-06-28 | 電解セル内での金属酸化物の還元 |
JP2012034079A Expired - Fee Related JP5461601B2 (ja) | 2001-06-29 | 2012-02-20 | 電解セル内での金属酸化物の還元 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012034079A Expired - Fee Related JP5461601B2 (ja) | 2001-06-29 | 2012-02-20 | 電解セル内での金属酸化物の還元 |
Country Status (14)
Country | Link |
---|---|
US (2) | US7918985B2 (ja) |
EP (1) | EP1409770B1 (ja) |
JP (2) | JP5044091B2 (ja) |
CN (1) | CN1316065C (ja) |
AT (1) | ATE456688T1 (ja) |
AU (2) | AUPR602901A0 (ja) |
CA (1) | CA2451302C (ja) |
DE (1) | DE60235242D1 (ja) |
DK (1) | DK1409770T3 (ja) |
ES (1) | ES2340258T3 (ja) |
NO (1) | NO342670B1 (ja) |
RU (1) | RU2298050C2 (ja) |
WO (1) | WO2003002785A1 (ja) |
ZA (1) | ZA200309736B (ja) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003209826B2 (en) * | 2002-03-13 | 2009-08-06 | Metalysis Limited | Reduction of metal oxides in an electrolytic cell |
EP1492905A4 (en) * | 2002-03-13 | 2006-06-28 | Bhp Billiton Innovation Pty | REDUCTION OF METAL OXIDES IN AN ELECTROLYZE CELL |
AU2002952083A0 (en) | 2002-10-16 | 2002-10-31 | Bhp Billiton Innovation Pty Ltd | Minimising carbon transfer in an electrolytic cell |
AU2003903150A0 (en) * | 2003-06-20 | 2003-07-03 | Bhp Billiton Innovation Pty Ltd | Electrochemical reduction of metal oxides |
US7794580B2 (en) | 2004-04-21 | 2010-09-14 | Materials & Electrochemical Research Corp. | Thermal and electrochemical process for metal production |
US7410562B2 (en) | 2003-08-20 | 2008-08-12 | Materials & Electrochemical Research Corp. | Thermal and electrochemical process for metal production |
EP1680532A4 (en) * | 2003-10-14 | 2007-06-20 | Bhp Billiton Innovation Pty | ELECTROCHEMICAL REDUCTION OF METAL OXIDES |
EP1808513A4 (en) * | 2004-10-12 | 2009-07-29 | Toho Titanium Co Ltd | METHOD FOR PRODUCING METAL BY MELT FLUOR ELECTROLYSIS AND METHOD FOR PRODUCING METALLIC TITANIUM |
EA014138B1 (ru) * | 2005-08-01 | 2010-10-29 | БиЭйчПи БИЛЛИТОН ИННОВЕЙШН ПТИ ЛТД. | Электрохимическое восстановление оксидов металлов |
WO2007092398A2 (en) * | 2006-02-06 | 2007-08-16 | E. I. Du Pont De Nemours And Company | Method for electrolytic production of titanium and other metal powders |
AU2008208040B2 (en) | 2007-01-22 | 2012-03-01 | Ats Mer, Llc | Metallothermic reduction of in-situ generated titanium chloride |
WO2008101283A1 (en) * | 2007-02-20 | 2008-08-28 | Metalysis Limited | Electrochemical reduction of metal oxides |
SA110310372B1 (ar) | 2009-05-12 | 2014-08-11 | Metalysis Ltd | جهاز وطريقة اختزال مخزون التغذية الصلب |
US8764962B2 (en) * | 2010-08-23 | 2014-07-01 | Massachusetts Institute Of Technology | Extraction of liquid elements by electrolysis of oxides |
CN103270198B (zh) | 2010-11-18 | 2017-11-14 | 金属电解有限公司 | 电解设备 |
GB201102023D0 (en) | 2011-02-04 | 2011-03-23 | Metalysis Ltd | Electrolysis method, apparatus and product |
CN103232038A (zh) * | 2013-04-28 | 2013-08-07 | 昆明理工大学 | 一种纳米碳化硅的制备方法 |
US10254068B2 (en) * | 2015-12-07 | 2019-04-09 | Praxis Powder Technology, Inc. | Baffles, suppressors, and powder forming methods |
Family Cites Families (25)
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DE150557C (ja) | ||||
US3728244A (en) | 1971-06-21 | 1973-04-17 | A Cooley | High current density electrolytic cell |
US4036705A (en) | 1974-09-03 | 1977-07-19 | Eidschun Jr Charles Douglas | Method for metal exchange |
JPS51138511A (en) * | 1975-05-27 | 1976-11-30 | Sony Corp | Method for regulating the hardness of metallic tita nium |
FR2335628A1 (fr) | 1975-12-16 | 1977-07-15 | Commissariat Energie Atomique | Dispositif electrolytique de marquage de pieces metalliques |
US4124454A (en) | 1976-10-04 | 1978-11-07 | Shang Wai K | Electrolytic treatment of metal sheet |
JPS5397904A (en) * | 1977-02-08 | 1978-08-26 | Sony Corp | Electrolysis apparatus |
US4225395A (en) | 1978-10-26 | 1980-09-30 | The Dow Chemical Company | Removal of oxides from alkali metal melts by reductive titration to electrical resistance-change end points |
FR2494726A1 (fr) * | 1980-11-27 | 1982-05-28 | Armand Marcel | Procede ameliore de preparation de titane par electrolyse |
US4430166A (en) | 1982-09-27 | 1984-02-07 | Inland Steel Company | Method and apparatus for electro-treating a metal strip |
US4487677A (en) * | 1983-04-11 | 1984-12-11 | Metals Production Research, Inc. | Electrolytic recovery system for obtaining titanium metal from its ore |
US4772361A (en) | 1987-12-04 | 1988-09-20 | Dorsett Terry E | Application of electroplate to moving metal by belt plating |
FR2681079B1 (fr) | 1991-09-06 | 1994-09-09 | Kodak Pathe | Dispositif et procede d'electrolyse a electrode poreuse et agitee. |
US5279715A (en) * | 1991-09-17 | 1994-01-18 | Aluminum Company Of America | Process and apparatus for low temperature electrolysis of oxides |
US5151169A (en) | 1991-12-06 | 1992-09-29 | International Business Machines Corp. | Continuous anodizing of a cylindrical aluminum surface |
JPH06146049A (ja) * | 1992-10-30 | 1994-05-27 | Kobe Steel Ltd | チタン等の高融点な活性金属の溶融塩電解採取方法 |
US5976345A (en) | 1997-01-06 | 1999-11-02 | Boston University | Method and apparatus for metal extraction and sensor device related thereto |
GB9812169D0 (en) * | 1998-06-05 | 1998-08-05 | Univ Cambridge Tech | Purification method |
JP4198811B2 (ja) * | 1999-02-01 | 2008-12-17 | 日鉱金属株式会社 | 高純度チタンの製造方法 |
JP3607532B2 (ja) * | 1999-06-03 | 2005-01-05 | 住友チタニウム株式会社 | チタン材料の脱酸素方法 |
JP2001107278A (ja) * | 1999-10-08 | 2001-04-17 | Nkk Corp | 有害金属を含む塩類の処理方法及びその装置 |
GB2359564B (en) * | 2000-02-22 | 2004-09-29 | Secr Defence | Improvements in the electrolytic reduction of metal oxides |
US20030057101A1 (en) * | 2000-02-22 | 2003-03-27 | Ward Close Charles M | Method for the manufacture of metal foams by electrolytic reduction of porous oxidic preforms |
US6540902B1 (en) | 2001-09-05 | 2003-04-01 | The United States Of America As Represented By The United States Department Of Energy | Direct electrochemical reduction of metal-oxides |
AUPS107102A0 (en) * | 2002-03-13 | 2002-04-11 | Bhp Billiton Innovation Pty Ltd | Electrolytic reduction of metal oxides |
-
2001
- 2001-06-29 AU AUPR6029A patent/AUPR602901A0/en not_active Abandoned
-
2002
- 2002-06-28 AU AU2002315563A patent/AU2002315563B2/en not_active Ceased
- 2002-06-28 RU RU2004102504/02A patent/RU2298050C2/ru not_active IP Right Cessation
- 2002-06-28 US US10/482,055 patent/US7918985B2/en not_active Expired - Fee Related
- 2002-06-28 WO PCT/AU2002/000843 patent/WO2003002785A1/en active Application Filing
- 2002-06-28 DK DK02740125.6T patent/DK1409770T3/da active
- 2002-06-28 AT AT02740125T patent/ATE456688T1/de active
- 2002-06-28 CN CNB028130421A patent/CN1316065C/zh not_active Expired - Fee Related
- 2002-06-28 EP EP02740125A patent/EP1409770B1/en not_active Expired - Lifetime
- 2002-06-28 CA CA2451302A patent/CA2451302C/en not_active Expired - Lifetime
- 2002-06-28 ES ES02740125T patent/ES2340258T3/es not_active Expired - Lifetime
- 2002-06-28 DE DE60235242T patent/DE60235242D1/de not_active Expired - Lifetime
- 2002-06-28 JP JP2003508746A patent/JP5044091B2/ja not_active Expired - Fee Related
-
2003
- 2003-12-17 ZA ZA200309736A patent/ZA200309736B/xx unknown
- 2003-12-19 NO NO20035686A patent/NO342670B1/no not_active IP Right Cessation
-
2010
- 2010-12-06 US US12/961,068 patent/US20110120881A1/en not_active Abandoned
-
2012
- 2012-02-20 JP JP2012034079A patent/JP5461601B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE60235242D1 (de) | 2010-03-18 |
EP1409770A1 (en) | 2004-04-21 |
US20110120881A1 (en) | 2011-05-26 |
ZA200309736B (en) | 2004-09-28 |
AU2002315563B2 (en) | 2006-12-21 |
US7918985B2 (en) | 2011-04-05 |
EP1409770B1 (en) | 2010-01-27 |
JP5461601B2 (ja) | 2014-04-02 |
CA2451302A1 (en) | 2003-01-09 |
AUPR602901A0 (en) | 2001-07-26 |
DK1409770T3 (da) | 2010-05-25 |
JP2004530798A (ja) | 2004-10-07 |
CN1522315A (zh) | 2004-08-18 |
WO2003002785A1 (en) | 2003-01-09 |
NO20035686D0 (no) | 2003-12-19 |
US20040173470A1 (en) | 2004-09-09 |
ATE456688T1 (de) | 2010-02-15 |
CA2451302C (en) | 2010-11-16 |
EP1409770A4 (en) | 2006-06-28 |
CN1316065C (zh) | 2007-05-16 |
NO342670B1 (no) | 2018-06-25 |
JP2012107341A (ja) | 2012-06-07 |
RU2004102504A (ru) | 2005-06-10 |
ES2340258T3 (es) | 2010-06-01 |
RU2298050C2 (ru) | 2007-04-27 |
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