GB1442229A - Process for separating zirconium and hafnium tetrachlorides - Google Patents
Process for separating zirconium and hafnium tetrachloridesInfo
- Publication number
- GB1442229A GB1442229A GB4928374A GB4928374A GB1442229A GB 1442229 A GB1442229 A GB 1442229A GB 4928374 A GB4928374 A GB 4928374A GB 4928374 A GB4928374 A GB 4928374A GB 1442229 A GB1442229 A GB 1442229A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali metal
- chloride
- alkali
- fecl
- nov
- 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
Links
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 title abstract 2
- PDPJQWYGJJBYLF-UHFFFAOYSA-J hafnium tetrachloride Chemical class Cl[Hf](Cl)(Cl)Cl PDPJQWYGJJBYLF-UHFFFAOYSA-J 0.000 title abstract 2
- 229910052726 zirconium Inorganic materials 0.000 title abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 229910007926 ZrCl Inorganic materials 0.000 abstract 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 abstract 1
- -1 alkali metal chloroformate Chemical class 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
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
- C22B34/14—Obtaining zirconium or hafnium
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Glass Compositions (AREA)
Abstract
1442229 ZrCl 4 /HfCl 4 UGINE ACIERS 14 Nov 1974 [14 Nov 1973] 49283/74 Heading C1A Zirconium and hafnium tetrachlorides are separated in a continuous process that involves selective absorption by a molten solvent which circulates in countercurrent to the halide vapours in a distillation column, the molten solvent being an alkali metal chloroaluminate (i.e. alkali chloride+AlCl 3 ) and/or alkali metal chloroformate (i.e. alkali chloride + FeCl 3 ) in which the mole ratio AlCl 3 and/or FeCl 3 to alkali metal chloride lies between 0À95 and 1À30, and where the selective absorption is carried out at a pressure of less than 5 bars and at a temperature of 250-550‹ C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7340395A FR2250707B1 (en) | 1973-11-14 | 1973-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1442229A true GB1442229A (en) | 1976-07-14 |
Family
ID=9127691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4928374A Expired GB1442229A (en) | 1973-11-14 | 1974-11-14 | Process for separating zirconium and hafnium tetrachlorides |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5320279B2 (en) |
| CA (1) | CA1033537A (en) |
| CS (1) | CS202542B2 (en) |
| DD (1) | DD115096A5 (en) |
| DE (1) | DE2453864C3 (en) |
| ES (1) | ES431944A1 (en) |
| FR (1) | FR2250707B1 (en) |
| GB (1) | GB1442229A (en) |
| IT (1) | IT1025618B (en) |
| SE (1) | SE403766B (en) |
| SU (1) | SU656496A3 (en) |
| ZA (1) | ZA747275B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9005556B2 (en) | 2010-08-02 | 2015-04-14 | Centre National De La Recherche Scientifique | Process for separating zirconium and hafnium tetrachlorides from mixtures |
| RU2567430C2 (en) * | 2013-12-04 | 2015-11-10 | Открытое акционерное общество "Чепецкий механический завод" (ОАО ЧМЗ) | Method for corrosion protection of equipment operating in molten potassium chloroaluminate medium |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072506A (en) * | 1975-10-17 | 1978-02-07 | Teledyne Industries, Inc. | Method of separating hafnium from zirconium |
| JPS56154327U (en) * | 1980-04-19 | 1981-11-18 | ||
| FR2543162A1 (en) * | 1983-03-24 | 1984-09-28 | Cezus Co Europ Zirconium | PROCESS FOR SEPARATING ZRCL4 FROM HFCL4 BY EXTRACTIVE DISTILLATION FOR REMOVING ALUMINUM FROM THE SOLVENT |
| US4913778A (en) * | 1989-01-02 | 1990-04-03 | Westinghouse Electric Corp. | Molten salt scrubbing of zirconium or hafnium tetrachloride |
| FR2813877B1 (en) | 2000-09-11 | 2002-12-06 | Cezus Cie Europ Du Zirconium | PROCESS FOR SEPARATING METALS SUCH AS ZIRCONIUM AND HAFNIUM |
| FR2823740B1 (en) * | 2001-04-18 | 2004-02-06 | Cezus Co Europ Zirconium | PROCESS FOR SEPARATING ZIRCONIUM AND HAFNIUM TETRACHLORIDES |
| JP4562169B2 (en) * | 2004-04-12 | 2010-10-13 | 株式会社高純度化学研究所 | Hf-based oxide gate insulating film precursor purification method |
| FR2872811B1 (en) * | 2004-07-09 | 2006-10-06 | Cie Europ Du Zirconium Cezus S | PROCESS FOR SEPARATING AND PURIFYING HAFNIUM AND ZIRCONIUM |
| RU2689744C1 (en) * | 2018-02-13 | 2019-05-28 | Акционерное общество "Чепецкий механический завод" | Method of cleaning mixture of zirconium and hafnium tetrachlorides from impurities |
| RU2745521C1 (en) * | 2020-09-11 | 2021-03-25 | Акционерное общество "Чепецкий механический завод" | Method for increasing the efficiency of rectification separation of zirconium and hafnium tetrachlorides |
-
1973
- 1973-11-14 FR FR7340395A patent/FR2250707B1/fr not_active Expired
-
1974
- 1974-11-11 CS CS747661A patent/CS202542B2/en unknown
- 1974-11-11 SE SE7414141A patent/SE403766B/en not_active IP Right Cessation
- 1974-11-12 JP JP13041274A patent/JPS5320279B2/ja not_active Expired
- 1974-11-12 IT IT29329/74A patent/IT1025618B/en active
- 1974-11-13 SU SU742078379A patent/SU656496A3/en active
- 1974-11-13 ZA ZA00747275A patent/ZA747275B/en unknown
- 1974-11-13 DE DE2453864A patent/DE2453864C3/en not_active Expired
- 1974-11-13 DD DD182329A patent/DD115096A5/xx unknown
- 1974-11-13 CA CA213,627A patent/CA1033537A/en not_active Expired
- 1974-11-14 GB GB4928374A patent/GB1442229A/en not_active Expired
- 1974-11-14 ES ES431944A patent/ES431944A1/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9005556B2 (en) | 2010-08-02 | 2015-04-14 | Centre National De La Recherche Scientifique | Process for separating zirconium and hafnium tetrachlorides from mixtures |
| RU2567430C2 (en) * | 2013-12-04 | 2015-11-10 | Открытое акционерное общество "Чепецкий механический завод" (ОАО ЧМЗ) | Method for corrosion protection of equipment operating in molten potassium chloroaluminate medium |
Also Published As
| Publication number | Publication date |
|---|---|
| SE7414141L (en) | 1975-05-15 |
| JPS5089299A (en) | 1975-07-17 |
| IT1025618B (en) | 1978-08-30 |
| ZA747275B (en) | 1976-04-28 |
| JPS5320279B2 (en) | 1978-06-26 |
| ES431944A1 (en) | 1976-10-16 |
| FR2250707B1 (en) | 1978-11-03 |
| CA1033537A (en) | 1978-06-27 |
| AU7527274A (en) | 1976-05-13 |
| SE403766B (en) | 1978-09-04 |
| DD115096A5 (en) | 1975-09-12 |
| SU656496A3 (en) | 1979-04-05 |
| DE2453864B2 (en) | 1978-05-11 |
| DE2453864C3 (en) | 1979-01-11 |
| DE2453864A1 (en) | 1975-05-28 |
| CS202542B2 (en) | 1981-01-30 |
| FR2250707A1 (en) | 1975-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19941113 |