GB497119A - A process for obtaining magnesia with hydrochloric acid and an alkali sulphate - Google Patents
A process for obtaining magnesia with hydrochloric acid and an alkali sulphateInfo
- Publication number
- GB497119A GB497119A GB403938A GB403938A GB497119A GB 497119 A GB497119 A GB 497119A GB 403938 A GB403938 A GB 403938A GB 403938 A GB403938 A GB 403938A GB 497119 A GB497119 A GB 497119A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrochloric acid
- sulphate
- alkali
- steam
- mixture
- 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
- C01F5/02—Magnesia
- C01F5/06—Magnesia by thermal decomposition of magnesium compounds
- C01F5/12—Magnesia by thermal decomposition of magnesium compounds by thermal decomposition of magnesium sulfate, with or without reduction
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Magnesium oxide suitable for removal of oxides of sulphur from waste gases from fuel furnaces is obtained by heating a mixture of magnesium sulphate and an alkali metal chloride in the presence of steam to a temperature of 600-700 DEG C., and treating the residue with water to dissolve the alkali sulphate formed. The hydrochloric acid evolved is cooled and recovered as a concentrated solution. Two mols. of alkali metal chloride are used per mol. of magnesium sulphate, and the latter is partly or wholly dehydrated before the mixture is treated with steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB403938A GB497119A (en) | 1938-02-09 | 1938-02-09 | A process for obtaining magnesia with hydrochloric acid and an alkali sulphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB403938A GB497119A (en) | 1938-02-09 | 1938-02-09 | A process for obtaining magnesia with hydrochloric acid and an alkali sulphate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB497119A true GB497119A (en) | 1938-12-13 |
Family
ID=9769577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB403938A Expired GB497119A (en) | 1938-02-09 | 1938-02-09 | A process for obtaining magnesia with hydrochloric acid and an alkali sulphate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB497119A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3711599A (en) * | 1970-04-13 | 1973-01-16 | Dow Chemical Co | Method of preparing fibrous magnesium oxide |
-
1938
- 1938-02-09 GB GB403938A patent/GB497119A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3711599A (en) * | 1970-04-13 | 1973-01-16 | Dow Chemical Co | Method of preparing fibrous magnesium oxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB481467A (en) | Process for the treatment of gases from furnaces for the production of aluminium | |
| GB240834A (en) | Process for the production of alumina | |
| GB497119A (en) | A process for obtaining magnesia with hydrochloric acid and an alkali sulphate | |
| GB408215A (en) | Improvements in or relating to the manufacture of titanium compounds | |
| SU57503A1 (en) | Method for producing borax from asharite ores | |
| GB203271A (en) | Improved process for working up mineral sodium carbonate | |
| GB423594A (en) | Improvements in process for obtaining a mixture of alumina and an insoluble calcium salt and for obtaining alumina | |
| GB492347A (en) | Method of extracting magnesium oxide from sea water and the like electro-chemically | |
| GB369879A (en) | Process for the production of anhydrous magnesium chloride, or saline mixtures containing same | |
| GB465605A (en) | Process for the manufacture of zirconium oxychlorde | |
| GB460281A (en) | Improvements in or relating to the production of potassium sulphate | |
| GB392633A (en) | Improvements in the treatment of water | |
| GB461597A (en) | Improvements in and relating to processes for the manufacture of caustic alkalies | |
| GB342617A (en) | Process of extracting potash and alumina from leucite | |
| GB223572A (en) | Process for the commercial production of pure oxide of zirconium | |
| GB138486A (en) | An improved process for the preparation of barium chloride and other chlorides of the alkaline earth metals | |
| GB290421A (en) | A process for the manufacture of a red oxide of iron, suitable for use as a pigment | |
| GB415871A (en) | A process for the production of potassium formate | |
| GB486153A (en) | Improvements in the oxidation of chromium sulphate to chromic acid | |
| GB449935A (en) | An improved process for making sodium sulphide from sodium sulphate by reduction with hydrogen or other reducing gases | |
| GB366169A (en) | Improvements relating to the production of barium oxygen compounds | |
| GB794386A (en) | An improved process for the recovery of useful products from used sulphuric acid pickling baths | |
| GB169301A (en) | A process for the preparation of alumina from clay | |
| GB765514A (en) | Process for the purification of diphenylol propane | |
| GB453318A (en) | Improvements in or relating to the manufacture of zinc oxide |