GB802515A - Improvements in or relating to the densifying of magnesia - Google Patents
Improvements in or relating to the densifying of magnesiaInfo
- Publication number
- GB802515A GB802515A GB3844/56A GB384456A GB802515A GB 802515 A GB802515 A GB 802515A GB 3844/56 A GB3844/56 A GB 3844/56A GB 384456 A GB384456 A GB 384456A GB 802515 A GB802515 A GB 802515A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnesia
- lithium
- mixture
- densified
- per cent
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
- C04B2/104—Ingredients added before or during the burning process
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Densified magnesia (periclase) is made by heating magnesia on a magnesium compound with a small amount of a lithium compound and firing the mixture. Lithium halides are preferred but lithium carbonate, sulphate or nitrate may be used alone or in admixture with iron, chromium or aluminium in the form of lithium ferrite or chromate. In examples, 0.01 to 1 per cent by weight lithium fluoride is mixed with finely powdered magnesia, magnesium hydrate, carbonate, or chloride and the mixture heated at about 1300-1400 DEG C. Most of the lithium salt is volatilized. Alternatively, the lithium salt is deposited from a salt solution as a coating on the magnesia, which may be in the form of a slurry; the mixture is then dried, briquetted and fired. The product contains at least 95 per cent of magnesia and has a density of 3 to 3.5. The densified magnesia may be ground and used as "grog" in the manufacture of refractory bricks. U.S.A. Specifications 2,487,290, 2,641,529, 2,641,530 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US802515XA | 1955-02-18 | 1955-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB802515A true GB802515A (en) | 1958-10-08 |
Family
ID=22156181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3844/56A Expired GB802515A (en) | 1955-02-18 | 1956-02-07 | Improvements in or relating to the densifying of magnesia |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB802515A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005016846A1 (en) * | 2003-08-12 | 2005-02-24 | Ut-Battelle, Llc | Alkali resistant refractories |
-
1956
- 1956-02-07 GB GB3844/56A patent/GB802515A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005016846A1 (en) * | 2003-08-12 | 2005-02-24 | Ut-Battelle, Llc | Alkali resistant refractories |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2823134A (en) | Densifying magnesia | |
| GB914963A (en) | Improvements in or relating to refractories | |
| GB802515A (en) | Improvements in or relating to the densifying of magnesia | |
| SE7606287L (en) | FIREPLACE COMPOSITION | |
| US3415642A (en) | Additive for production of spheroidal graphite cast iron consisting mostly of calcium-silicon | |
| GB928283A (en) | A refractory shape and composition | |
| US2957752A (en) | Process for increasing the density of | |
| US3172795A (en) | Exothermic refractory materials con- taining oxidizing agents and process | |
| ES416151A1 (en) | Refractory material | |
| US2393080A (en) | Charge preparation | |
| JPS569334A (en) | Manufacture of dust-reduced pellet | |
| US1330263A (en) | Process for producing refractory compounds | |
| US3285759A (en) | Refractory metallurgic composition and products, and method of obtaining same | |
| JPS56119742A (en) | Manufacture of iron ore pellet | |
| JPS54155918A (en) | Hot iron desulfurizing agent and manufacture thereof | |
| GB1415150A (en) | Addition of magnesium to molten metal | |
| GB1223136A (en) | Improvements in or relating to refractory compositions | |
| GB1418653A (en) | Lining induction crucible furnaces | |
| SU470355A1 (en) | Exothermic Profit Mix | |
| US2528471A (en) | Refractory and process of making the same | |
| GB1112862A (en) | Lining material for oxygen blowing basic steel making vessels | |
| SU517573A1 (en) | Lime production | |
| GB698797A (en) | Improvements in or relating to refractory material and method of making the same | |
| SU563400A1 (en) | Charge for fabricating the refractory material | |
| GB804065A (en) | Improvements in or relating to the production and working of refractory metals |