DE8021C - Process for the preparation of potassium sulphate directly from Schonite - Google Patents
Process for the preparation of potassium sulphate directly from SchoniteInfo
- Publication number
- DE8021C DE8021C DENDAT8021D DE8021DA DE8021C DE 8021 C DE8021 C DE 8021C DE NDAT8021 D DENDAT8021 D DE NDAT8021D DE 8021D A DE8021D A DE 8021DA DE 8021 C DE8021 C DE 8021C
- Authority
- DE
- Germany
- Prior art keywords
- preparation
- schonite
- potassium sulphate
- lime
- schönite
- 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.)
- Active
Links
- OTYBMLCTZGSZBG-UHFFFAOYSA-L Potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 title claims description 6
- 229910052939 potassium sulfate Inorganic materials 0.000 title claims description 6
- 235000011151 potassium sulphates Nutrition 0.000 title claims description 6
- 239000001120 potassium sulphate Substances 0.000 title description 3
- 238000000034 method Methods 0.000 title description 2
- 238000002360 preparation method Methods 0.000 title description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 10
- AXCZMVOFGPJBDE-UHFFFAOYSA-L Calcium hydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- 239000000292 calcium oxide Substances 0.000 claims description 5
- 235000012255 calcium oxide Nutrition 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L mgso4 Chemical group [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000015450 Tilia cordata Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L Calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 241000276397 Merluccius merluccius Species 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 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
1879.1879.
FRIED. W. DUPRE und CECIL N. HAKE in STASSFURT. Verfahren zur Darstellung von Kaliumsulfat direct aus Schön it.FRIED. W. DUPRE and CECIL N. HAKE in STASSFURT. Process for the preparation of potassium sulfate direct from Schön it.
Patentirt im Deutschen Reiche vom 21. Januar 1879 ab.Patented in the German Empire on January 21, 1879.
Wird eine selbst sehr verdünnte, kalte oder heifse Lösung von Schönit mit Kalkhydrat versetzt, so bildet sich ein starker voluminöser Niederschlag, die Lösung erstarrt zu einem Brei, welcher die weitere Gewinnung der in diesem Brei enthaltenen Flüssigkeit praktisch verhindert. If a very dilute, cold or hot solution of Schönit is mixed with hydrated lime, so a strong voluminous precipitate forms, the solution solidifies to a paste, which practically prevents the further recovery of the liquid contained in this pulp.
Wird dagegen fein gemahlener Schönit mit der zu der Zersetzung des in demselben enthaltenen Magnesiumsulfats nöthigen Menge gelöschtem oder ungelöschtem Kalk gemischt und diese Mischung dann calcinirt oder besonders auch, wenn gelöschter Kalk zur Mischung genommen wurde oder die Mischung mit ungelöschtem Kalk angefeuchtet wird, einige Tage sich selbst überlassen, so erhält man, indem das freiwerdende Krystallwasser des Schönits die Zersetzung durch den Kalk befördert, in beiden Fällen eine harte Masse1, aus welcher sich das Kaliumsulfat verhältnifsmäfsig leicht mit Wasser ausziehen läfst. In der so erhaltenen Lösung ist alles Kaliumsulfat des angewendeten Schönits und nur wenig Calciumsulfat enthalten.If, on the other hand, finely ground schoenite is mixed with the amount of slaked or unslaked lime necessary for the decomposition of the magnesium sulphate contained in it and this mixture is then calcined, or especially if slaked lime has been added to the mixture or the mixture is moistened with unslaked lime, a few days If left to your own devices, the resulting crystalline water of Schönite promotes the decomposition by the lime, in both cases a hard mass 1 from which the potassium sulphate can be extracted relatively easily with water. The solution obtained in this way contains all of the potassium sulphate of the Schönite used and only a little calcium sulphate.
Hierauf gründen wir folgende Methode:On this we base the following method:
Der Schönit wird in gemahlenem Zustande mit gelöschtem oder ungelöschtem Kalk innigst gemengt und die Masse während des Mischens, behufs Erzielung einer vollständigen Mischung, etwas angefeuchtet. Es werden zweckmäfsig auf 100 Theile Schönit 14 Theile Kalk genommen, etwa entsprechend der Gleichung:The Schönite becomes intimately in the ground state with slaked or unslaked lime mixed and the mass during mixing, in order to achieve a complete mixture, slightly moistened. It is expedient to take 14 parts of lime per 100 parts of Schönit, roughly according to the equation:
K2 SO, + MgSO, 6 ag + CaO = K2 SO, + Ca SO, + MgO.K 2 SO, + MgSO, 6 ag + CaO = K 2 SO, + Ca SO, + MgO.
Diese anfänglich beinahe trockene Mischung von Schönit mit Kalk wird während des Mischens durch das freiwerdende Krystallwasser des Schönits allmälig plastisch. Die Masse wird nun entwederThis initially almost dry mixture of Schönite and lime becomes during the mixing by the released crystalline water of the Schönite gradually plastic. the Mass will now either
1. calcinirt oder1. calcined or
2. einige Tage sich selbst überlassen.2. Left to yourself for a few days.
In beiden Fällen erhält man eine harte Masse, deren Auslaugung ohne Schwierigkeit bewerkstelligt werden kann. Durch immer wiederholte Benutzung der so gewonnenen Laugen (nach Abscheidung des in der Hitze gelösten Kaliumsulfats) zu weiterem Auslaugen wird der Wasserverbrauch auf ein Minimum beschränkt, die Löslichkeit des Gypses sehr reducirt und ein etwaiger Gehalt an Bittersalz sofort wieder entfernt.In both cases a hard mass is obtained which can be leached without difficulty can be. By repeatedly using the lye obtained in this way (after separating the dissolved in the heat Potassium sulfate) for further leaching, water consumption is kept to a minimum, the solubility of the gypsum is greatly reduced, and any Epsom salt content is immediately restored removed.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE8021C true DE8021C (en) |
Family
ID=285633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT8021D Active DE8021C (en) | Process for the preparation of potassium sulphate directly from Schonite |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE8021C (en) |
-
0
- DE DENDAT8021D patent/DE8021C/en active Active
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