DE283182C - - Google Patents
Info
- Publication number
- DE283182C DE283182C DENDAT283182D DE283182DA DE283182C DE 283182 C DE283182 C DE 283182C DE NDAT283182 D DENDAT283182 D DE NDAT283182D DE 283182D A DE283182D A DE 283182DA DE 283182 C DE283182 C DE 283182C
- Authority
- DE
- Germany
- Prior art keywords
- sludge
- salt
- solution
- final
- potassium
- 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
- 239000010802 sludge Substances 0.000 description 8
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 7
- -1 potassium chlorine Chemical compound 0.000 description 4
- 239000012266 salt solution Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 235000011164 potassium chloride Nutrition 0.000 description 3
- 239000001103 potassium chloride Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000003518 caustics Substances 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052928 kieserite Inorganic materials 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L mgso4 Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000005712 crystallization Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000003756 stirring Methods 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
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/04—Chlorides
- C01D3/08—Preparation by working up natural or industrial salt mixtures or siliceous minerals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Description
Verfahren zur Gewinnung von Chlorkalium. Patentiert im Deutschen Reiche vom 28. April 1914 ab.Process for the extraction of potassium chlorine. Patented in the German Empire on April 28, 1914.
Manche Kaliwerke haben in ihren Rohsalzlösungen große Mengen feiner Schlämme, die sich bei Klärung der Lösung sehr schlecht absetzen und eine lange Klärzeit bedingen.Some potash plants have large amounts of fine sludge in their crude salt solutions, the settle very poorly when the solution clears and require a long clearing time.
Durch die hierbei entstehende Abkühlung fällt ein großer Teil des Chlorkaliums aus, welcher nur durch nachträgliches Verrühren des von der Lösung getrennten Schlammes wiederzugewinnen ist. Ein großer Nachteil ist hierbeiThe resulting cooling causes a large part of the potassium chlorine to precipitate can only be recovered by subsequent stirring of the sludge separated from the solution is. A big disadvantage here is
ίο die Entstehung großer Mengen neuer, verhältnismäßig leichter Laugen und die Schwierigkeit, den Schlamm chlorkaliumfrei zu bekommen.ίο the emergence of large amounts of new, proportionate lighter alkalis and the difficulty of getting the sludge free of chloropotassium.
Bei dem im folgenden beschriebenen Verfahren erhält man bei Vermeidung des KlärensIn the method described below, clearing is obtained by avoiding clarification
J5 ein schlammfreies Chlorkalium. J 5 a sludge-free potassium chloride.
Nach erfolgter Lösung wird die Rohsalzlösung durch einen Absatzkasten geleitet, in welchem mitgerissene Teile Rückstand und Kieserit zurückbleiben. Alsdann wird die schlammige Rohsalzlösung sofort nach eventueller Verdünnung in dem Kühlraum in die Kristallisierkästen abgelassen.After the solution has taken place, the crude salt solution is passed through a sales box, in which entrained parts of residue and kieserite remain. Then the muddy crude salt solution immediately after possible dilution in the cooling room in the Crystallization boxes drained.
Nach einigen Tagen hat sich der Schlamm vollständig abgesetzt, und das erste Produkt ist auskristallisiert.After a few days the sludge has completely settled and the first product has crystallized out.
Das Gemisch von auskristallisiertem Salz und Schlamm wird nach Ablassen der Mutterlauge im Kasten auf einen Haufen zusammengeschlagen; dadurch wird das Gemisch zum größten Teil von der anhaftenden Mut-Pate ν t- Anspruch:The mixture of crystallized salt and sludge is after draining the mother liquor beaten up in a heap in the box; this will make the mixture for the most part from the clinging courage godfather ν t claim:
3535
terlauge befreit. Alsdann wird das schlammige Salz in geeigneten Apparaten im Gegenstrom mit Endlauge unter Zuhilfenahme von einzublasender Luft behandelt und durch intensive Bewegung des Salzes und der Endlauge (oder sonstiger Lauge von hohem spezifischen Gewicht) der Schlamm vom Chlorkalium getrennt. Die feinen Schlämme werden von der stark in Bewegung befindlichen Endlauge aufgenommen und auf diese Weise vom Salz getrennt.freed terlauge. The muddy salt is then poured in countercurrent in suitable apparatus treated with final lye with the aid of air to be blown and through intensive Movement of the salt and the final caustic (or other caustic of high specific Weight) the sludge separated from the potassium chloride. The fine sludge is removed from the heavily moving Incorporated final liquor and separated in this way from the salt.
Da die Endlauge nicht in der Lage ist, Chlorkalium zu lösen, so ist bei diesem Verfahren ein Verlust von Chlorkalium ausgeschlossen. Since the final liquor is not able to dissolve potassium chlorine, so is with this process loss of potassium chloride is excluded.
4545
Verfahren zur Gewinnung von Chlorkalium, dadurch gekennzeichnet, daß lediglieh von groben Verunreinigungen, wie Rückständen, Kieserit u. dgl., befreite schlammige Rohsalzlösung ohne vorhergehende Klärung zum Auskristallisieren gebracht wird, worauf der mit den Kristallen ausgeschiedene Schlamm durch intensives Behandeln des Gemisches im Gegenstrom mit Endlauge eventuell unter Zuhilfenahme von einzublasender Luft beseitigt wird.Process for the production of potassium chlorine, characterized in that only freed from coarse impurities such as residues, kieserite and the like Muddy crude salt solution is made to crystallize without prior clarification, whereupon the one with the crystals separated sludge by intensive treatment of the mixture in countercurrent with final liquor possibly under With the help of blowing air is eliminated.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE283182C true DE283182C (en) |
Family
ID=538772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT283182D Active DE283182C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE283182C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1226090B (en) * | 1960-08-13 | 1966-10-06 | Wintershall Ag | Process for the hot dissolving of crude potash salts in main and secondary solvents for the purpose of obtaining potassium chloride |
| US5332436A (en) * | 1990-11-21 | 1994-07-26 | Chemical Lime Company | Method of increasing the surface area and plastic properties of hydrated lime |
-
0
- DE DENDAT283182D patent/DE283182C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1226090B (en) * | 1960-08-13 | 1966-10-06 | Wintershall Ag | Process for the hot dissolving of crude potash salts in main and secondary solvents for the purpose of obtaining potassium chloride |
| US5332436A (en) * | 1990-11-21 | 1994-07-26 | Chemical Lime Company | Method of increasing the surface area and plastic properties of hydrated lime |
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