JP2005520045A - 電解槽中の金属酸化物の還元 - Google Patents
電解槽中の金属酸化物の還元 Download PDFInfo
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- JP2005520045A JP2005520045A JP2003574882A JP2003574882A JP2005520045A JP 2005520045 A JP2005520045 A JP 2005520045A JP 2003574882 A JP2003574882 A JP 2003574882A JP 2003574882 A JP2003574882 A JP 2003574882A JP 2005520045 A JP2005520045 A JP 2005520045A
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- electrolyte
- electrolytic cell
- metal
- cathode
- metal oxide
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/005—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells for the electrolysis of melts
-
- 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
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- 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
-
- 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
-
- 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
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/18—Electrolytes
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
Description
「上述の第2の利点は、特許請求した本発明を電解質の分解電位より低い電位で実施することによって、ある程度達成される。より高い電位を用いるならば、D1及びD2で述べたように、電解質中の陽イオンは金属又は半金属化合物上に析出する。D1の例では、この結果、カルシウムの析出し、それ故に、反応性金属の消費が生じる。この方法が稼働している間は、電解陽イオンは陰極上に析出されない。」と述べている。
電解槽を図1に示す。
図2及び3を参照すると、実験に3Vの定電圧を使用すると、約1.2Aの初期電流が発生した。最初の2時間の間は、電流が絶えず低下するのが観測された。その後は、1Aまで電流が徐々に増加するのが観測された。
Claims (14)
- 電解槽中で固体状態の金属酸化物を還元する方法であって、前記電解槽は、陽極、陰極、溶融電解質を含み、前記電解質は、金属酸化物を化学的に還元することのできる金属の陽イオンを含み、前記固体状態の金属酸化物は電解質中に浸漬され、前記方法は、金属酸化物を化学的に還元することができる金属の陽イオンが金属として陰極上に析出することができる電位より高い電位で電解槽を稼働させるステップを含み、それによって金属が金属酸化物を化学的に還元する、上記方法。
- 金属が陰極上に析出するように、金属酸化物を化学的に還元することができる金属の陽イオンが金属として陰極上に析出する電位より高い電位で電解槽を稼働させることを含む、請求項1に記載の方法。
- 陰極上に析出された金属が、電解質に可溶性であって電解質中に溶解し、それによって、金属酸化物の近傍に移動する、請求項2に記載の方法。
- 金属酸化物が酸化チタンであり、電解質が、電解質の成分の1つとしてCaOを含む、CaCl2ベースの電解質であり、電解槽電位がCa金属が陰極上に析出することができる電位より高い、前記請求項のいずれか一項に記載の方法。
- 陽極でのCl2ガスの形成を最小にするために、前記電解槽電位がCaCl2の分解電位より低い、請求項4に記載の方法。
- 600〜1100℃の電解質で稼働する電解槽内で、前記電解槽電位が3.5V以下である、請求項4又は請求項5に記載の方法。
- 600〜1100℃の電解質で稼働する電解槽内で、前記電解槽電位が少なくとも1.3Vである、請求項4から6までのいずれか一項に記載の方法。
- 前記CaCl2ベースの電解質が、加熱時にCaOを形成するか又はCaOを含む、市販のCaCl2源である、請求項4から7までのいずれか一項に記載の方法。
- 前記CaCl2ベースの電解質が、別々に添加されるか又は予備混合されて電解質を形成するCaCl2及びCaOを含む、請求項4から7までのいずれか一項に記載の方法。
- 前記陽極が黒鉛である、前記請求項のいずれか一項に記載の方法。
- 前記陽極が黒鉛であり、前記電解槽が、前記陰極と前記陽極の間に設置された、酸素の陰イオンを透過させ、イオン又は非イオンの形の炭素を透過させず、それによって炭素が陰極へ移動することを防止する膜を含む、前記請求項のいずれか一項に記載の方法。
- 前記陰極が、少なくとも一部分が金属酸化物から形成される、前記請求項のいずれか一項に記載の方法。
- 固体状態の金属酸化物を還元する電解槽であって、前記電解槽は、陽極、陰極、溶融電解質を含み、前記電解質は、金属酸化物、及び電解質中に浸漬された固体状態の前記金属酸化物を化学的に還元することができる金属の陽イオンを含み、さらに前記電解槽は、前記金属酸化物を化学的に還元することができる金属の陽イオンが金属として陰極上に析出することができる電位より高い電位で稼働し、前記金属が前記金属酸化物を化学的に還元する、上記電解槽。
- 前記陰極が、少なくとも一部分が金属酸化物から形成される、請求項12に記載の電解槽。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPS1071A AUPS107102A0 (en) | 2002-03-13 | 2002-03-13 | Electrolytic reduction of metal oxides |
AUPS3049A AUPS304902A0 (en) | 2002-06-19 | 2002-06-19 | Reduction of metal oxides in an electrolytic cell |
PCT/AU2003/000306 WO2003076690A1 (en) | 2002-03-13 | 2003-03-13 | Reduction of metal oxides in an electrolytic cell |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005520045A true JP2005520045A (ja) | 2005-07-07 |
JP4658479B2 JP4658479B2 (ja) | 2011-03-23 |
Family
ID=27805836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003574882A Expired - Fee Related JP4658479B2 (ja) | 2002-03-13 | 2003-03-13 | 電解槽中の金属酸化物の還元 |
Country Status (12)
Country | Link |
---|---|
EP (2) | EP1492905A4 (ja) |
JP (1) | JP4658479B2 (ja) |
KR (2) | KR101038701B1 (ja) |
CN (1) | CN1650051B (ja) |
BR (1) | BR0308384B1 (ja) |
CA (1) | CA2479048C (ja) |
EA (1) | EA007046B1 (ja) |
MX (1) | MXPA04008887A (ja) |
NO (1) | NO340277B1 (ja) |
NZ (1) | NZ531467A (ja) |
WO (1) | WO2003076690A1 (ja) |
ZA (1) | ZA200407434B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005520046A (ja) * | 2002-03-13 | 2005-07-07 | ビーエイチピー ビリトン イノベーション プロプライアタリー リミテッド | 電解槽内の炭素移動の最小化 |
JP2010533792A (ja) * | 2007-07-18 | 2010-10-28 | グリーン メタルズ リミテッド | ルテニウム酸カルシウム電極材料 |
KR101740424B1 (ko) | 2015-08-18 | 2017-05-26 | 충남대학교산학협력단 | 일메나이트 원광을 이용한 금속 티타늄의 제조방법 |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0219640D0 (en) * | 2002-08-23 | 2002-10-02 | Univ Cambridge Tech | Electrochemical method and apparatus |
AU2002951962A0 (en) * | 2002-10-09 | 2002-10-24 | Bhp Billiton Innovation Pty Ltd | Electrolytic reduction of metal oxides |
AU2002952083A0 (en) * | 2002-10-16 | 2002-10-31 | Bhp Billiton Innovation Pty Ltd | Minimising carbon transfer in an electrolytic cell |
JP4502617B2 (ja) * | 2003-09-30 | 2010-07-14 | 日本軽金属株式会社 | 金属酸化物の還元方法及び金属酸化物の還元装置 |
JP4513297B2 (ja) * | 2003-09-30 | 2010-07-28 | 日本軽金属株式会社 | 金属酸化物の還元方法及び金属酸化物の還元装置 |
CN1961098A (zh) * | 2004-03-22 | 2007-05-09 | Bhp比利顿创新公司 | 金属氧化物的电化学还原 |
EP1776491A4 (en) * | 2004-06-28 | 2007-10-10 | Bhp Billiton Innovation Pty | PREPARATION OF TITANIUM |
EA014138B1 (ru) * | 2005-08-01 | 2010-10-29 | БиЭйчПи БИЛЛИТОН ИННОВЕЙШН ПТИ ЛТД. | Электрохимическое восстановление оксидов металлов |
NO20062776L (no) * | 2006-06-14 | 2007-12-17 | Norsk Titanium Tech As | Fremgangsmåte, apparatur samt midler for produksjon av materiale i en smeltet salt elektrolytt |
CN100532653C (zh) * | 2006-11-03 | 2009-08-26 | 西北有色金属研究院 | 一种熔盐电解提取钛的方法 |
GB0902486D0 (en) * | 2009-02-13 | 2009-04-01 | Metalysis Ltd | A method for producing metal powders |
GB201010772D0 (en) * | 2010-06-26 | 2010-08-11 | Fray Derek J | Method for texturing silicon surfaces |
BR112013011941A2 (pt) | 2010-11-18 | 2016-11-01 | Metalysis Ltd | método e sistema para reduzir eletroliticamente uma matéria - prima sólida |
GB201019615D0 (en) | 2010-11-18 | 2010-12-29 | Metalysis Ltd | Electrolysis apparatus and method |
MY180279A (en) | 2010-11-18 | 2020-11-26 | Metalysis Ltd | Electrolysis apparatus |
GB201102023D0 (en) | 2011-02-04 | 2011-03-23 | Metalysis Ltd | Electrolysis method, apparatus and product |
RU2466216C1 (ru) * | 2011-06-17 | 2012-11-10 | Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" | Способ получения металлического титана электролизом |
EA030643B1 (ru) | 2011-10-04 | 2018-09-28 | Металисиз Лимитед | Электролитическое получение порошков |
GB201223375D0 (en) | 2012-12-24 | 2013-02-06 | Metalysis Ltd | Method and apparatus for producing metal by electrolytic reduction |
KR101526298B1 (ko) * | 2013-04-22 | 2015-06-10 | 서울대학교산학협력단 | 산화티타늄 전극의 제조방법, 이를 포함하는 활성산소종 생성 시스템, 염소 생성 시스템, 염료감응형 태양전지 및 전기이중층 커패시터 |
GB201411433D0 (en) | 2014-06-26 | 2014-08-13 | Metalysis Ltd | Method and apparatus for electrolytic reduction of a feedstock comprising oxygen and a first metal |
NL2015759B1 (en) | 2015-11-10 | 2017-05-26 | Stichting Energieonderzoek Centrum Nederland | Additive manufacturing of metal objects. |
WO2017141044A1 (en) | 2016-02-17 | 2017-08-24 | Metalysis Limited | Methods of making graphene materials |
GB201615659D0 (en) | 2016-09-14 | 2016-10-26 | Metalysis Ltd | Method of producing a powder |
GB201615658D0 (en) | 2016-09-14 | 2016-10-26 | Metalysis Ltd | Method of producing a composite material |
GB201615660D0 (en) | 2016-09-14 | 2016-10-26 | Metalysis Ltd | Method of producing a powder |
NL2018890B1 (en) | 2017-05-10 | 2018-11-15 | Admatec Europe B V | Additive manufacturing of metal objects |
NL2021611B1 (en) | 2018-09-12 | 2020-05-06 | Admatec Europe B V | Three-dimensional object and manufacturing method thereof |
CN109763146B (zh) * | 2019-03-27 | 2021-03-26 | 贵州省过程工业技术研究中心 | 一种铝电解用钛基复合材料阳极制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS322357B1 (ja) * | 1954-12-29 | 1957-04-18 | ||
WO1999064638A1 (en) * | 1998-06-05 | 1999-12-16 | Cambridge University Technical Services Limited | Removal of oxygen from metal oxides and solid solutions by electrolysis in a fused salt |
JP2003129268A (ja) * | 2001-10-17 | 2003-05-08 | Katsutoshi Ono | 金属チタンの精錬方法及び精錬装置 |
Family Cites Families (5)
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ITTO970080A1 (it) * | 1997-02-04 | 1998-08-04 | Marco Vincenzo Ginatta | Procedimento per la produzione elettrolitica di metalli |
GB2359564B (en) * | 2000-02-22 | 2004-09-29 | Secr Defence | Improvements in the electrolytic reduction of metal oxides |
AUPR443801A0 (en) * | 2001-04-10 | 2001-05-17 | Bhp Innovation Pty Ltd | Removal of oxygen from metal oxides and solid metal solutions |
AUPR602901A0 (en) * | 2001-06-29 | 2001-07-26 | Bhp Innovation Pty Ltd | Removal of oxygen from metals oxides and solid metal solutions |
AUPR712101A0 (en) * | 2001-08-16 | 2001-09-06 | Bhp Innovation Pty Ltd | Process for manufacture of titanium products |
-
2003
- 2003-03-13 CN CN038092735A patent/CN1650051B/zh not_active Expired - Fee Related
- 2003-03-13 EA EA200401203A patent/EA007046B1/ru not_active IP Right Cessation
- 2003-03-13 JP JP2003574882A patent/JP4658479B2/ja not_active Expired - Fee Related
- 2003-03-13 BR BRPI0308384-5A patent/BR0308384B1/pt not_active IP Right Cessation
- 2003-03-13 KR KR1020047014399A patent/KR101038701B1/ko active IP Right Grant
- 2003-03-13 EP EP03743767A patent/EP1492905A4/en not_active Withdrawn
- 2003-03-13 CA CA2479048A patent/CA2479048C/en not_active Expired - Fee Related
- 2003-03-13 NZ NZ531467A patent/NZ531467A/en not_active IP Right Cessation
- 2003-03-13 WO PCT/AU2003/000306 patent/WO2003076690A1/en active Application Filing
- 2003-03-13 MX MXPA04008887A patent/MXPA04008887A/es active IP Right Grant
- 2003-03-13 EP EP14163470.9A patent/EP2770086A3/en not_active Withdrawn
- 2003-03-13 KR KR1020117003330A patent/KR20110025237A/ko active IP Right Grant
-
2004
- 2004-09-15 NO NO20043857A patent/NO340277B1/no not_active IP Right Cessation
- 2004-09-16 ZA ZA200407434A patent/ZA200407434B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS322357B1 (ja) * | 1954-12-29 | 1957-04-18 | ||
WO1999064638A1 (en) * | 1998-06-05 | 1999-12-16 | Cambridge University Technical Services Limited | Removal of oxygen from metal oxides and solid solutions by electrolysis in a fused salt |
JP2003129268A (ja) * | 2001-10-17 | 2003-05-08 | Katsutoshi Ono | 金属チタンの精錬方法及び精錬装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005520046A (ja) * | 2002-03-13 | 2005-07-07 | ビーエイチピー ビリトン イノベーション プロプライアタリー リミテッド | 電解槽内の炭素移動の最小化 |
JP2010533792A (ja) * | 2007-07-18 | 2010-10-28 | グリーン メタルズ リミテッド | ルテニウム酸カルシウム電極材料 |
KR101740424B1 (ko) | 2015-08-18 | 2017-05-26 | 충남대학교산학협력단 | 일메나이트 원광을 이용한 금속 티타늄의 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
EA200401203A1 (ru) | 2005-06-30 |
CN1650051A (zh) | 2005-08-03 |
BR0308384B1 (pt) | 2014-02-04 |
CN1650051B (zh) | 2011-02-23 |
NZ531467A (en) | 2007-06-29 |
EA007046B1 (ru) | 2006-06-30 |
MXPA04008887A (es) | 2004-11-26 |
CA2479048A1 (en) | 2003-09-18 |
ZA200407434B (en) | 2006-05-31 |
NO340277B1 (no) | 2017-03-27 |
KR20040111408A (ko) | 2004-12-31 |
BR0308384A (pt) | 2005-01-25 |
NO20043857L (no) | 2004-12-08 |
KR101038701B1 (ko) | 2011-06-02 |
CA2479048C (en) | 2012-07-10 |
EP2770086A3 (en) | 2014-10-29 |
JP4658479B2 (ja) | 2011-03-23 |
EP1492905A1 (en) | 2005-01-05 |
EP2770086A2 (en) | 2014-08-27 |
EP1492905A4 (en) | 2006-06-28 |
WO2003076690A1 (en) | 2003-09-18 |
KR20110025237A (ko) | 2011-03-09 |
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