KR900004968A - 지르코늄-하프늄의 분리방법 - Google Patents
지르코늄-하프늄의 분리방법 Download PDFInfo
- Publication number
- KR900004968A KR900004968A KR1019890013242A KR890013242A KR900004968A KR 900004968 A KR900004968 A KR 900004968A KR 1019890013242 A KR1019890013242 A KR 1019890013242A KR 890013242 A KR890013242 A KR 890013242A KR 900004968 A KR900004968 A KR 900004968A
- Authority
- KR
- South Korea
- Prior art keywords
- zirconium
- hafnium
- chloride
- molten salt
- solvent
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
- B01D3/322—Reboiler specifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/40—Extractive distillation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/04—Halides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G27/00—Compounds of hafnium
- C01G27/04—Halides
-
- 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
- C22B34/14—Obtaining zirconium or hafnium
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/17—Saline water conversion
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/90—Particular type of heating
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 ZrCl4- NaCl계의 상평형도
제2도는 본 발명의 추출 증류에 의한 지르코늄 - 하프늄의 분리방법 개략적 설명도.
Claims (3)
- 지르코늄 - 하프늄의 분리방법에 있어서, 사염화 지르코늄 및 하프늄의 혼합물을 추출 증류 탑에 도입하는 단계 : 기본적으로 염화 리튬 및 적어도 하나의 염화 나트륨, 칼륨, 마그네슘 및 칼슘으로 구성된 용융염 용매를 사용하여 액체상을 제공하기 위해 탑을 통하여 용융염 용매를 회전시키는 단계 : 용융염 용매로부터 지르코늄으로 전기화학적으로 환원시킴으로써 증류탑의 하부로부터 취한 염화 지르코늄을 스트리핑하는 단계 : 및 염화 하프늄 - 지르코늄을 탑의 상부로 회전되어 돌아온 상기 스트립된 용융염 용매로 첨가하기 위하여 탑의 상부에서 가압 환류 응축기를 사용하는 단계를 포함하는 것을 특징으로 하는 지르코늄 - 하프늄 분리방법.
- 제1항에 있어서, 상기 용매를 필수적으로 염화 리튬, 염화 나트륨 및 염화 마그네슘으로 구성되는 것을 특징으로 하는 지르코늄 - 하프늄 분리방법.
- 제1항 또는 제2항에 있어서, 상기 용매는 처음의 열스트리핑되고 그 후 전해적으로 스트리핑되는 것을 특징으로 하는 지르코늄 - 하프늄 분리방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/242,570 US4874475A (en) | 1988-09-12 | 1988-09-12 | Molten salt extractive distillation process for zirconium-hafnium separation |
US242,570 | 1988-09-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900004968A true KR900004968A (ko) | 1990-04-13 |
KR0166346B1 KR0166346B1 (ko) | 1999-01-15 |
Family
ID=22915328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890013242A KR0166346B1 (ko) | 1988-09-12 | 1989-09-11 | 지르코늄-하프늄의 분리방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US4874475A (ko) |
JP (1) | JPH02141542A (ko) |
KR (1) | KR0166346B1 (ko) |
FR (1) | FR2651799B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112891973A (zh) * | 2021-01-15 | 2021-06-04 | 中国科学院上海应用物理研究所 | 一种降低卤化物熔盐中氧含量的方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0624982B2 (ja) * | 1988-01-12 | 1994-04-06 | 三菱原子燃料株式会社 | 四塩化ジルコニュウムと四塩化ハフニユウムを分離する方法 |
US4874475A (en) * | 1988-09-12 | 1989-10-17 | Westinghouse Electric Corp. | Molten salt extractive distillation process for zirconium-hafnium separation |
US5632867A (en) * | 1992-05-19 | 1997-05-27 | Exxon Research And Engineering Company | Recovering a relatively volatile component of a solution from a less volatile component, e.g. as in solvent recovery |
US5437854A (en) * | 1994-06-27 | 1995-08-01 | Westinghouse Electric Corporation | Process for purifying zirconium tetrachloride |
US5772854A (en) * | 1995-08-17 | 1998-06-30 | Huntsman Specialty Chemicals Corporation | Use of paired reboilers in the purification of propylene oxide by extractive distillation |
FR2823740B1 (fr) * | 2001-04-18 | 2004-02-06 | Cezus Co Europ Zirconium | Procede de separation des tetrachlorures de zirconium et de hafnium |
US6737030B2 (en) | 2002-01-29 | 2004-05-18 | Ati Properties, Inc. | Method for separating hafnium from zirconium |
US8753418B2 (en) * | 2009-06-12 | 2014-06-17 | The United States Of America, As Represented By The Secretary Of The Navy | Sonochemically mediated preparation of nanopowders of reactive metals |
RU2538890C1 (ru) * | 2013-09-06 | 2015-01-10 | Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" | Способ разделения тетрахлоридов циркония и гафния экстрактивной ректификацией |
Family Cites Families (40)
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US1582860A (en) * | 1924-08-05 | 1926-04-27 | Philips Nv | Process of separating hafnium and zirconium |
US2214211A (en) * | 1939-01-24 | 1940-09-10 | Walther H Duisberg | Process for producing zirconium metal |
US2938769A (en) * | 1952-07-31 | 1960-05-31 | Lyle G Overholser | Separation of hafnium from zirconium |
US2816814A (en) * | 1953-08-20 | 1957-12-17 | William K Plucknett | Separation of zirconium and hafnium halides |
US2920027A (en) * | 1955-07-01 | 1960-01-05 | Chicago Dev Corp | Electrical circuits for metal refining cells |
US2942969A (en) * | 1956-07-19 | 1960-06-28 | Nat Lead Co | Method for producing zirconium metal |
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US2905613A (en) * | 1956-09-19 | 1959-09-22 | Osaka Titanium Seizo Kabushiki | Methods and apparatus for the electrolytic-refining of titanium metal or zirconium metal |
US2852446A (en) * | 1956-12-07 | 1958-09-16 | Du Pont | Purification of zirconium tetrachlorides by fractional distillation |
US3006719A (en) * | 1957-07-17 | 1961-10-31 | Nat Distillers Chem Corp | Solvent extraction process for separating hafnium from zirconium |
FR1336041A (fr) * | 1962-10-17 | 1963-08-23 | Carborundum Co | Purification des tétrahalogénues de zirconium et d'hafnium |
CA863258A (en) * | 1968-10-01 | 1971-02-09 | N. Flengas Spero | Separation of hafnium from zirconium |
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US3966458A (en) * | 1974-09-06 | 1976-06-29 | Amax Speciality Metal Corporation | Separation of zirconium and hafnium |
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US4285724A (en) * | 1979-11-15 | 1981-08-25 | Aluminum Company Of America | Continuous production of finely divided zirconium powder |
CA1171664A (en) * | 1980-07-30 | 1984-07-31 | Hiroshi Ishizuka | Process for separation of zirconium- and hafnium tetrachlorides from a mixture comprising such chlorides and apparatus therefor |
FR2494727A1 (fr) * | 1980-11-27 | 1982-05-28 | Armand Marcel | Cellule pour la preparation de metaux polyvalents tels que zr ou hf par electrolyse d'halogenures fondus et procede de mise en oeuvre de cette cellule |
JPS5834553A (ja) * | 1981-08-25 | 1983-03-01 | Toshiba Corp | 低圧水銀蒸気放電灯 |
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JPS5944376A (ja) * | 1982-09-08 | 1984-03-12 | Nippon Petrochem Co Ltd | 6−ヒドロキシクロマン誘導体の製法 |
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JPH0624982B2 (ja) * | 1988-01-12 | 1994-04-06 | 三菱原子燃料株式会社 | 四塩化ジルコニュウムと四塩化ハフニユウムを分離する方法 |
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US4874475A (en) * | 1988-09-12 | 1989-10-17 | Westinghouse Electric Corp. | Molten salt extractive distillation process for zirconium-hafnium separation |
US4923577A (en) * | 1988-09-12 | 1990-05-08 | Westinghouse Electric Corp. | Electrochemical-metallothermic reduction of zirconium in molten salt solutions |
US4865695A (en) * | 1988-09-12 | 1989-09-12 | Westinghouse Electric Corp. | Preparation of complexes of zirconium and hafnium tetrachlorides with phosphorus oxychloride |
-
1988
- 1988-09-12 US US07/242,570 patent/US4874475A/en not_active Expired - Lifetime
-
1989
- 1989-09-11 KR KR1019890013242A patent/KR0166346B1/ko not_active IP Right Cessation
- 1989-09-12 FR FR8911880A patent/FR2651799B1/fr not_active Expired - Lifetime
- 1989-09-12 JP JP1238353A patent/JPH02141542A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112891973A (zh) * | 2021-01-15 | 2021-06-04 | 中国科学院上海应用物理研究所 | 一种降低卤化物熔盐中氧含量的方法 |
Also Published As
Publication number | Publication date |
---|---|
US4874475A (en) | 1989-10-17 |
KR0166346B1 (ko) | 1999-01-15 |
JPH02141542A (ja) | 1990-05-30 |
FR2651799B1 (fr) | 1992-07-24 |
FR2651799A1 (fr) | 1991-03-15 |
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