DE31148C - Process for the production of potassium sulphate from potassium magnesium sulphate - Google Patents
Process for the production of potassium sulphate from potassium magnesium sulphateInfo
- Publication number
- DE31148C DE31148C DENDAT31148D DE31148DA DE31148C DE 31148 C DE31148 C DE 31148C DE NDAT31148 D DENDAT31148 D DE NDAT31148D DE 31148D A DE31148D A DE 31148DA DE 31148 C DE31148 C DE 31148C
- Authority
- DE
- Germany
- Prior art keywords
- potassium
- sulphate
- schönite
- amount
- production
- 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 - Lifetime
Links
- OJXVUEMVNWMNCR-UHFFFAOYSA-L magnesium;potassium;sulfate Chemical compound [Mg+2].[K+].[O-]S([O-])(=O)=O OJXVUEMVNWMNCR-UHFFFAOYSA-L 0.000 title claims description 5
- OTYBMLCTZGSZBG-UHFFFAOYSA-L Potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 title claims description 4
- 229910052939 potassium sulfate Inorganic materials 0.000 title claims description 4
- 235000011151 potassium sulphates Nutrition 0.000 title claims description 4
- 239000001120 potassium sulphate Substances 0.000 title description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000003245 coal Substances 0.000 claims description 6
- PQEYZUPUCRTGAQ-UHFFFAOYSA-N [O--].[Mg++].OS(O)(=O)=O Chemical group [O--].[Mg++].OS(O)(=O)=O PQEYZUPUCRTGAQ-UHFFFAOYSA-N 0.000 claims 1
- 239000002802 bituminous coal Substances 0.000 claims 1
- 239000003077 lignite Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 2
- DPLVEEXVKBWGHE-UHFFFAOYSA-N Potassium sulfide Chemical compound [S-2].[K+].[K+] DPLVEEXVKBWGHE-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000000717 retained Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
- C01D5/06—Preparation of sulfates by double decomposition
- C01D5/10—Preparation of sulfates by double decomposition with sulfates of magnesium, calcium, strontium, or barium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
KAISERLICHESIMPERIAL
PATEN ΤΑΜΤΛ4PATEN ΤΑΜΤΛ4
Zu der durch Schwarz, Dingler's Polytechnisches Journal, Jahrgang 1876, Bd. 219, S. 353, angegebenen Reaction, nach welcher sich Kaliummagnesiumsulfat (Schönit) durch Zusatz von Kohle in Kaliumsulfat und Magnesiumoxyd nach folgender Gleichung zerlegen läfst:To the one by Schwarz, Dingler's polytechnic Journal, year 1876, vol. 219, p. 353, indicated reaction, after which Potassium magnesium sulphate (Schönit) by adding coal in potassium sulphate and magnesium oxide can be decomposed according to the following equation:
+ 2 S O2 + C O2,
haben wir folgende Neuerungen aufgefunden: ' Um' ein inniges Mengen oder Mischen des
Schönits mit Kohle (Braun- oder Steinkohle) zu bewerkstelligen, behandeln wir denselben
in offenen Gefäfsen mit Dampf, wodurch der Schönit in feinster Vertheilung erhalten wird.
Die Ausführung dieser Operation erfolgt in der Weise, dafs wir ein offenes, mit einem
Siebboden (sogenanntem falschen Boden) versehenes Gefäfs mit Schönit füllen und von
unten unter dem Siebboden Dampf zuführen. Der Dampf durchdringt die Schicht von Schönit
und bewirkt ein Erwärmen desselben, verbunden mit Austritt von Wasser aus den
Schönitkrystallen. Dadurch zerfällt der nach* Patent No. 10701 gewonnene Schönit, wenngleich
beim Behandeln mit Dampf seine ursprüngliche Krystallform vollständig erhalten bleibt, bei der geringsten Berührung in ein
feines Krystallpulver.+ 2 S O 2 + C O 2 ,
We have discovered the following innovations: 'In order to achieve an intimate amount or mixing of the Schönite with coal (brown or hard coal), we treat it in open vessels with steam, whereby the Schönite is preserved in the finest distribution. This operation is carried out in such a way that we fill an open vessel provided with a sieve bottom (so-called false bottom) with Schönite and supply steam from below under the sieve bottom. The steam penetrates the layer of Schönite and causes it to warm up, combined with the escape of water from the Schönite crystals. This disintegrates according to * Patent No. 10701 obtained Schönite, although its original crystal form is completely retained when treated with steam, at the slightest contact into a fine crystal powder.
Als Dampf wird vortheilhaft der Retourdampf einer Maschine benutzt.The return steam of a machine is advantageously used as steam.
Das durch Behandeln des Schönits mit Dampf in oben beschriebener Weise erhaltene feine Krystallpulver wird nun mit einer zur vollständigen Reduction der an Magnesiumoxyd gebundenen Schwefelsäure nicht ausreichenden Menge Kohle (Braun- oder Steinkohle) gemengt. Der Zusatz von Kohle beträgt etwa 2 pCt. und dient nur dazu, die Reduction des Kaliummagnesiumsulfats (Schönits) in einem mit reducirendem Feuer arbeitenden Ofen einzuleiten.That obtained by treating the schoenite with steam in the manner described above fine crystal powder is now with a complete reduction of the magnesium oxide bound sulfuric acid insufficient amount of coal (brown or hard coal) mixed. The addition of charcoal is about 2 pCt. and only serves to the Reduction of the potassium magnesium sulphate (Schönite) in a working with reducing fire Initiate furnace.
Der Ofen, in welchem die Reduction vorgenommen wird, ist von kreisrunder Form und mit einem Rührwerk und verschliefsbaren Thüren versehen.The furnace in which the reduction is carried out is circular in shape and provided with a stirrer and lockable doors.
Wir erreichen durch den geringen Zusatz von Reductionskohle unter gleichzeitiger Verwendung einer reducirenden Flamme bei der Verarbeitung von Kaliummagnesiumsulfat auf Kaliumsulfat, dafs letzteres, gemengt mit Magnesiumoxyd, in ganz lockerer Beschaffenheit erhalten und die Bildung von Kaliumsulfuret gänzlich vermieden wird.We achieve by adding a small amount of reducing carbon while using it at the same time a reducing flame when processing potassium magnesium sulphate on potassium sulphate, so that the latter, mixed with magnesium oxide, preserved in a very loose condition and the formation of potassium sulfuret is avoided entirely.
Die Reduction der an Magnesiumoxyd gebundenen Menge Schwefelsäure beträgt go bis 95 pCt. und ist somit die Zersetzung des Schönits eine fast vollständige.The reduction in the amount of sulfuric acid bound to magnesium oxide is up to 95 pct. and thus the decomposition of the Schönite is almost complete.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE31148C true DE31148C (en) |
Family
ID=307240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT31148D Expired - Lifetime DE31148C (en) | Process for the production of potassium sulphate from potassium magnesium sulphate |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE31148C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2776191A (en) * | 1953-12-31 | 1957-01-01 | Int Minerals & Chem Corp | Process for the production of magnesium oxide from ores containing magnesium sulfate |
-
0
- DE DENDAT31148D patent/DE31148C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2776191A (en) * | 1953-12-31 | 1957-01-01 | Int Minerals & Chem Corp | Process for the production of magnesium oxide from ores containing magnesium sulfate |
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