GR1007791B - Production of crystalline magnesium sulphate from magnesium minerals - Google Patents
Production of crystalline magnesium sulphate from magnesium mineralsInfo
- Publication number
- GR1007791B GR1007791B GR20100100329A GR20100100329A GR1007791B GR 1007791 B GR1007791 B GR 1007791B GR 20100100329 A GR20100100329 A GR 20100100329A GR 20100100329 A GR20100100329 A GR 20100100329A GR 1007791 B GR1007791 B GR 1007791B
- Authority
- GR
- Greece
- Prior art keywords
- magnesium sulphate
- slurry
- crystalline
- ore
- magnesium
- Prior art date
Links
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 title abstract 6
- 229910001607 magnesium mineral Inorganic materials 0.000 title 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 title 1
- 235000019341 magnesium sulphate Nutrition 0.000 title 1
- 239000002002 slurry Substances 0.000 abstract 4
- 239000007787 solid Substances 0.000 abstract 3
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 2
- 239000011707 mineral Substances 0.000 abstract 2
- 235000010755 mineral Nutrition 0.000 abstract 2
- 239000012047 saturated solution Substances 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000001095 magnesium carbonate Substances 0.000 abstract 1
- 235000014380 magnesium carbonate Nutrition 0.000 abstract 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
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
- C01F5/40—Magnesium sulfates
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
Crystalline magnesium sulphate hydrate is directly obtained by the reaction of a MgO-containing mineral, usually magnesite, when the micronised ore containing the mineral reacts stoichiometrically with sulphuric acid and the respective quantity of water in a slurry consisting of the ore and a saturated magnesium sulphate solution. In this way, the magnesium sulphate hydrate product is formed directly in crystalline form, without being dissolved in the saturated solution that forms the slurry in which the micronised ore is suspended. The produced crystalline magnesium sulphate hydrate is separated on a screen, having a mesh larger than the initial micronization, through which the slurry with the undissolved solids passes. The saturated solution is separated from the undissolved solids of the slurry and recycled, while the solids are discharged after washing. The washing water is also recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GR20100100329A GR1007791B (en) | 2010-06-08 | 2010-06-08 | Production of crystalline magnesium sulphate from magnesium minerals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GR20100100329A GR1007791B (en) | 2010-06-08 | 2010-06-08 | Production of crystalline magnesium sulphate from magnesium minerals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GR20100100329A GR20100100329A (en) | 2012-01-31 |
| GR1007791B true GR1007791B (en) | 2013-01-03 |
Family
ID=44645740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GR20100100329A GR1007791B (en) | 2010-06-08 | 2010-06-08 | Production of crystalline magnesium sulphate from magnesium minerals |
Country Status (1)
| Country | Link |
|---|---|
| GR (1) | GR1007791B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1130537A (en) * | 1979-01-15 | 1982-08-31 | Yves Lachance | Preparation of both magnesium sulphate and chloride from spent acids neutralization |
| WO2007070974A1 (en) * | 2005-12-22 | 2007-06-28 | Bhp Billiton Ssm Development Pty Ltd | Recovery of solid magnesium sulfate hydrate |
-
2010
- 2010-06-08 GR GR20100100329A patent/GR1007791B/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| GR20100100329A (en) | 2012-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PG | Patent granted |
Effective date: 20130225 |