GB243978A - An improved method of producing anhydrous magnesium chloride - Google Patents
An improved method of producing anhydrous magnesium chlorideInfo
- Publication number
- GB243978A GB243978A GB1091425A GB1091425A GB243978A GB 243978 A GB243978 A GB 243978A GB 1091425 A GB1091425 A GB 1091425A GB 1091425 A GB1091425 A GB 1091425A GB 243978 A GB243978 A GB 243978A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnesium chloride
- effected
- stage
- gas
- mgcl22h2o
- 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
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/26—Magnesium halides
- C01F5/30—Chlorides
- C01F5/34—Dehydrating magnesium chloride containing water of crystallisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
243,978. Arnold, C., (Dow Chemical Co.). April 27, 1925. Magnesium chloride.-The dehydration of magnesium chloride crystals is effected by mixing the normal crystal with partially dehydrated magnesium chloride (preferably MgCl22H2O) both insolid form, and then heating the mixture in a current of hot combustion gas and air to a temperature of 115‹ C. gradually rising to 350‹ C., thus avoiding fusion. The product at this stage is mainly the dehydrated salt, MgCl22H2O, and a part of this is used to mix with the next quantity of normal crystals. The second stage of the dehydration is effected in hydrochloric acid gas at a temperature of 200‹ C. gradually rising to 500‹ C. The first stage may be effected in a shelf drier, Fig. 1, the salt entering at 5 and leaving at 6, while flue gas enters at 7 and air at 9 and the gases leave at 8. The second stage may be effected in a rotary tube 12 which receives dry hydrochloric acid gas from a pipe system 14 including in its circuit two drying towers 13 for use alternately for drying the gas. The sulphuric acid from the towers is concentrated in a concentrator 16 and used again. Specification 4417/89 is referred to.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1091425A GB243978A (en) | 1925-04-27 | 1925-04-27 | An improved method of producing anhydrous magnesium chloride |
| FR597509D FR597509A (en) | 1925-04-27 | 1925-04-30 | Process for the production of anhydrous magnesium chloride |
| CH115312D CH115312A (en) | 1925-04-27 | 1925-05-02 | Method of partial dehydration of normal hydrated magnesium chloride. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1091425A GB243978A (en) | 1925-04-27 | 1925-04-27 | An improved method of producing anhydrous magnesium chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB243978A true GB243978A (en) | 1925-12-10 |
Family
ID=9976609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1091425A Expired GB243978A (en) | 1925-04-27 | 1925-04-27 | An improved method of producing anhydrous magnesium chloride |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH115312A (en) |
| FR (1) | FR597509A (en) |
| GB (1) | GB243978A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE758222A (en) * | 1969-10-29 | 1971-04-01 | Norsk Hydro As | PROCESS FOR THE PREPARATION OF MAGNESIUM CHLORIDE SUITABLE FOR THE PRODUCTION OF MAGNESIUM BY ELECTROLYSIS OF MELT SALT |
-
1925
- 1925-04-27 GB GB1091425A patent/GB243978A/en not_active Expired
- 1925-04-30 FR FR597509D patent/FR597509A/en not_active Expired
- 1925-05-02 CH CH115312D patent/CH115312A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH115312A (en) | 1926-07-01 |
| FR597509A (en) | 1925-11-23 |
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