ES431944A1 - Process for separating zirconium and hafnium tetrachlorides - Google Patents
Process for separating zirconium and hafnium tetrachloridesInfo
- Publication number
- ES431944A1 ES431944A1 ES431944A ES431944A ES431944A1 ES 431944 A1 ES431944 A1 ES 431944A1 ES 431944 A ES431944 A ES 431944A ES 431944 A ES431944 A ES 431944A ES 431944 A1 ES431944 A1 ES 431944A1
- Authority
- ES
- Spain
- Prior art keywords
- vapors
- pressure
- chloride
- alkali
- solvent
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 229910052726 zirconium Inorganic materials 0.000 title abstract 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 abstract 4
- 239000003513 alkali Substances 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract 1
- CPNWPWZLPUVOCF-UHFFFAOYSA-O [ClH]1[AlH]C(=CC=C1)C(=O)O Chemical group [ClH]1[AlH]C(=CC=C1)C(=O)O CPNWPWZLPUVOCF-UHFFFAOYSA-O 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000000926 separation method Methods 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)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (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)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Glass Compositions (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
Procedure for the continuous separation of zirconium and hafnium tetrachlorides, from their mixtures by selective absorption of their vapors by means of a molten solvent that circulates against the current of the vapors in a column to be distilled, characterized in that the solvent is a chloraluminate and/or an alkali chlorferrate whose molar ratio of aluminum chloride and/or ferric chloride/alkali chloride is always kept above 0.95 and below 1.30 and preferably between 1.04 and 1.10 by continuous addition or AlCl3 -and/or FeCl3- is discontinuous and because it operates at a pressure of less than 5 bar and preferably at a pressure substantially equal to atmospheric pressure and at temperatures between 250ºC and 550ºC. (Machine-translation by Google Translate, not legally binding)
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 |
|---|---|
| ES431944A1 true ES431944A1 (en) | 1976-10-16 |
Family
ID=9127691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES431944A Expired ES431944A1 (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) |
Families Citing this family (12)
| 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 |
| FR2963339B1 (en) * | 2010-08-02 | 2012-09-14 | Centre Nat Rech Scient | PROCESS FOR SEPARATING ZIRCONIUM AND HAFNIUM TETRACHLORIDES FROM THEIR 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 |
| 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 SE SE7414141A patent/SE403766B/en not_active IP Right Cessation
- 1974-11-11 CS CS747661A patent/CS202542B2/en unknown
- 1974-11-12 IT IT29329/74A patent/IT1025618B/en active
- 1974-11-12 JP JP13041274A patent/JPS5320279B2/ja not_active Expired
- 1974-11-13 DD DD182329A patent/DD115096A5/xx unknown
- 1974-11-13 CA CA213,627A patent/CA1033537A/en not_active Expired
- 1974-11-13 SU SU742078379A patent/SU656496A3/en active
- 1974-11-13 DE DE2453864A patent/DE2453864C3/en not_active Expired
- 1974-11-13 ZA ZA00747275A patent/ZA747275B/en unknown
- 1974-11-14 ES ES431944A patent/ES431944A1/en not_active Expired
- 1974-11-14 GB GB4928374A patent/GB1442229A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA1033537A (en) | 1978-06-27 |
| DE2453864B2 (en) | 1978-05-11 |
| FR2250707A1 (en) | 1975-06-06 |
| FR2250707B1 (en) | 1978-11-03 |
| GB1442229A (en) | 1976-07-14 |
| JPS5089299A (en) | 1975-07-17 |
| AU7527274A (en) | 1976-05-13 |
| SE403766B (en) | 1978-09-04 |
| SE7414141L (en) | 1975-05-15 |
| ZA747275B (en) | 1976-04-28 |
| DD115096A5 (en) | 1975-09-12 |
| CS202542B2 (en) | 1981-01-30 |
| IT1025618B (en) | 1978-08-30 |
| DE2453864A1 (en) | 1975-05-28 |
| SU656496A3 (en) | 1979-04-05 |
| JPS5320279B2 (en) | 1978-06-26 |
| DE2453864C3 (en) | 1979-01-11 |
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