GB776317A - Improvement in process for removing air and water from metallic halides - Google Patents
Improvement in process for removing air and water from metallic halidesInfo
- Publication number
- GB776317A GB776317A GB12108/55A GB1210855A GB776317A GB 776317 A GB776317 A GB 776317A GB 12108/55 A GB12108/55 A GB 12108/55A GB 1210855 A GB1210855 A GB 1210855A GB 776317 A GB776317 A GB 776317A
- Authority
- GB
- United Kingdom
- Prior art keywords
- melting point
- pressure
- microns
- atmospheric
- subsequently
- 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
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Drying Of Gases (AREA)
Abstract
Air and water are removed from alkali metal or alkaline earth metal halides (specifically sodium, potassium, calcium and magnesium chlorides) by initially heating to a temperature below the melting point at a pressure less than atmospheric and subsequently at a temperature above the melting point at a pressure not greater than atmospheric. In the described embodiments, (a) the material is heated at a pressure not exceeding 300 microns for 4-6 hours during which time the temperature is raised rapidly to 50-100 DEG C. above the melting point (b) the material is initially heated slightly below the melting point at less than 3 centimetres, preferably not exceeding a 100 microns, of mercury and subsequently slightly above melting point at not more than 3,000 microns, preferably whilst flowing in inert gas such as the monotomic gases helium, argon or neon therethrough (c) heating under vacuum well below the melting point and subsequently slightly above the melting point at or below atmospheric pressure in the presence of an inert gas. Examples are given of these three embodiments in which the salt used is sodium chloride.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US776317XA | 1954-05-05 | 1954-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB776317A true GB776317A (en) | 1957-06-05 |
Family
ID=22139186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12108/55A Expired GB776317A (en) | 1954-05-05 | 1955-04-27 | Improvement in process for removing air and water from metallic halides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB776317A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112891973A (en) * | 2021-01-15 | 2021-06-04 | 中国科学院上海应用物理研究所 | Method for reducing oxygen content in halide molten salt |
-
1955
- 1955-04-27 GB GB12108/55A patent/GB776317A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112891973A (en) * | 2021-01-15 | 2021-06-04 | 中国科学院上海应用物理研究所 | Method for reducing oxygen content in halide molten salt |
| CN112891973B (en) * | 2021-01-15 | 2022-09-13 | 中国科学院上海应用物理研究所 | Method for reducing oxygen content in halide molten salt |
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