GB219983A - A process for separating hafnium and zirconium - Google Patents
A process for separating hafnium and zirconiumInfo
- Publication number
- GB219983A GB219983A GB18119/24A GB1811924A GB219983A GB 219983 A GB219983 A GB 219983A GB 18119/24 A GB18119/24 A GB 18119/24A GB 1811924 A GB1811924 A GB 1811924A GB 219983 A GB219983 A GB 219983A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zirconium
- hafnium
- ether
- oxychlorides
- precipitate
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
Abstract
Hafnium and zirconium are separated by fractional crystallization or precipitation of their higher basic compounds such as Hf2O3CL25H2O, Hf2 O3 (NO3)2 5H2O and Hf2 O3 (SCN)2 5H2O and the corresponding zirconium compounds. Mixed zirconium and hafnium oxychlorides are dissolved in alcohol whereupon ether is added, the precipitate containing more Zr2 O3 Cl2 5H2O than corresponds with the p proportion of zirconium in the original mixture; or acetone or other suitable precipitant may be used instead of ether; or a solution of the mixed oxychlorides in a mixture of alcohol and ether may be treated with water, the precipitate in each case containing a higher proportion of zirconium than the original mixture. Hafnium and zirconium sulphocyanides are obtained by adding sulphocyanic acid to the hydroxides. Specifications 219,024 and 219,327, [both in Class 1 (iii), Oxides &c., Metallic], are referred to.ALSO:Hafnium and zirconium are separated by fractional crystallization or precipitation of their higher basic compounds such as Hf2O3Cl25H2O, Hf2O3(NO3)25H2O and Hf2O3-(SCN)2.5H2O and the corresponding zirconium compounds. Mixed zirconium and hafnium oxychlorides are dissolved in alcohol whereupon ether is added, the precipitate containing more Zr2O3-Cl25H2O than corresponds with the proportion of zirconium in the original mixture; or acetone or other suitable precipitant may be used instead of ether, the precipitate in each case containing a higher proportion of zirconium than the original mixture. The raw material may be first partially separated by means of the preparation and fractional separation of the oxychlorides, the process of the invention being applied to the oxychloride concentrate thus obtained. Specifications 219,024 and 219,327 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK219983X | 1923-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB219983A true GB219983A (en) | 1925-10-29 |
Family
ID=8150014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18119/24A Expired GB219983A (en) | 1923-07-30 | 1924-07-29 | A process for separating hafnium and zirconium |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT103899B (en) |
| CH (1) | CH113735A (en) |
| FR (1) | FR583802A (en) |
| GB (1) | GB219983A (en) |
| NL (1) | NL27473B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3006719A (en) * | 1957-07-17 | 1961-10-31 | Nat Distillers Chem Corp | Solvent extraction process for separating hafnium from zirconium |
-
1924
- 1924-06-27 NL NL27473A patent/NL27473B/xx unknown
- 1924-07-14 CH CH113735D patent/CH113735A/en unknown
- 1924-07-17 FR FR583802D patent/FR583802A/en not_active Expired
- 1924-07-18 AT AT103899D patent/AT103899B/en active
- 1924-07-29 GB GB18119/24A patent/GB219983A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3006719A (en) * | 1957-07-17 | 1961-10-31 | Nat Distillers Chem Corp | Solvent extraction process for separating hafnium from zirconium |
Also Published As
| Publication number | Publication date |
|---|---|
| AT103899B (en) | 1926-08-10 |
| FR583802A (en) | 1925-01-22 |
| NL27473B (en) | 1926-08-16 |
| CH113735A (en) | 1926-02-01 |
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