JP4604217B2 - 希少元素の分離回収方法 - Google Patents
希少元素の分離回収方法 Download PDFInfo
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- JP4604217B2 JP4604217B2 JP2007225822A JP2007225822A JP4604217B2 JP 4604217 B2 JP4604217 B2 JP 4604217B2 JP 2007225822 A JP2007225822 A JP 2007225822A JP 2007225822 A JP2007225822 A JP 2007225822A JP 4604217 B2 JP4604217 B2 JP 4604217B2
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- electrolysis
- rare
- electrode
- elements
- rare element
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Electrolytic Production Of Metals (AREA)
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Description
これは、各種試験によって得た、ルテニウム(Ru)及びテクネチウム(Tc)のそれぞれと、同じく稀少元素であるロジウム(Rh)とを共に塩酸溶解液に存在させることによって、ルテニウム(Ru)及びテクネチウム(Tc)のそれぞれの回収率が向上するとの知見に基づいている。
これは、上述した説明と同様に、各種試験によって得た、パラジウム(Pd)とルテニウム(Ru)を共に塩酸溶解液に存在させることによって、ルテニウム(Ru)の回収率が向上することの知見に基づいている。
試験方法
定電流電解試験
E (Ag/AgCl/3.5MNaCl) = E(NHE) 0.205V
電解後の陰極槽中溶液の濃度分析にはICP-AES分析およびICP-MS分析を用いた。電解後の電極の表面分析はSEM/EDS観察を行った。
定電流電解
11 陰極槽
12 陽極槽
13 オレフィン膜
14 直流電源
15 参照電極
101 陰極
102 陽極
Claims (4)
- 稀少元素であるルテニウム(Ru)及びテクネチウム(Tc)のいずれか1種と、稀少元素であるロジウム(Rh)とを含む核分裂生成物の塩酸溶解液を、段階的に定電流電解し、前記稀少元素を電解還元により陰極の電極に析出させることによって他の元素と分離させ、回収することを特徴とする稀少元素の分離回収方法。
- 稀少元素であるパラジウム(Pd)とルテニウム(Ru)を含む核分裂生成物の塩酸溶解液を、段階的に定電流電解し、前記稀少元素を電解還元により陰極の電極に析出させることによって他の元素と分離させ、回収することを特徴とする稀少元素の分離回収方法。
- 稀少元素であるレニウム(Re)と稀少元素であるロジウム(Rh)とを含む塩酸溶解液を、定電流電解し、前記稀少元素を電解還元により陰極の電極に析出させることによって他の元素と分離させ、回収することを特徴とする稀少元素の分離回収方法。
- 請求項1乃至3のいずれか1項に記載の方法において、電極電流密度を段階的に増大させ、それによって前記電極の電位が段階的に増大させられることを特徴とする稀少元素の分離回収方法。
Priority Applications (1)
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JP2007225822A JP4604217B2 (ja) | 2007-08-31 | 2007-08-31 | 希少元素の分離回収方法 |
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JP2007225822A JP4604217B2 (ja) | 2007-08-31 | 2007-08-31 | 希少元素の分離回収方法 |
Publications (2)
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JP2009058370A JP2009058370A (ja) | 2009-03-19 |
JP4604217B2 true JP4604217B2 (ja) | 2011-01-05 |
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JP2007225822A Expired - Fee Related JP4604217B2 (ja) | 2007-08-31 | 2007-08-31 | 希少元素の分離回収方法 |
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Families Citing this family (1)
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JP5398369B2 (ja) * | 2009-06-15 | 2014-01-29 | 株式会社東芝 | レアメタルの製造方法及び製造システム |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000227497A (ja) * | 1999-02-04 | 2000-08-15 | Japan Nuclear Cycle Development Inst States Of Projects | 白金族元素、テクネチウム、テルル及びセレンの分離回収方法 |
JP2003161798A (ja) * | 2001-11-28 | 2003-06-06 | Japan Nuclear Cycle Development Inst States Of Projects | 使用済核燃料中の希少元素fpの分離回収方法およびこれを利用した原子力発電−燃料電池発電共生システム |
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2007
- 2007-08-31 JP JP2007225822A patent/JP4604217B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000227497A (ja) * | 1999-02-04 | 2000-08-15 | Japan Nuclear Cycle Development Inst States Of Projects | 白金族元素、テクネチウム、テルル及びセレンの分離回収方法 |
JP2003161798A (ja) * | 2001-11-28 | 2003-06-06 | Japan Nuclear Cycle Development Inst States Of Projects | 使用済核燃料中の希少元素fpの分離回収方法およびこれを利用した原子力発電−燃料電池発電共生システム |
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