DE272983C - - Google Patents
Info
- Publication number
- DE272983C DE272983C DENDAT272983D DE272983DA DE272983C DE 272983 C DE272983 C DE 272983C DE NDAT272983 D DENDAT272983 D DE NDAT272983D DE 272983D A DE272983D A DE 272983DA DE 272983 C DE272983 C DE 272983C
- Authority
- DE
- Germany
- Prior art keywords
- cooler
- crystals
- solution
- cooling
- crystallization
- 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
- 238000001816 cooling Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 238000002425 crystallisation Methods 0.000 description 4
- 230000005712 crystallization Effects 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 230000037250 Clearance Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 230000035512 clearance Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0004—Crystallisation cooling by heat exchange
- B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Erfindung betrifft ein Verfahren zum Auskristallisieren von Salzen u. dgl. aus Lösungen, insonderheit zum Auskristallisieren der Chlorkaliumlösung bei der Kaligewinnung. Die warme Lösung wird in bekannter Weise zur Abkühlung gebracht. Neu ist, daß die Lösung durch die Kühlvorrichtung unter Druck mit einer beträchtlichen Geschwindigkeit hindurchgepreßt wird. Diese Maßnahme bringt den Erfolg mitThe invention relates to a method for crystallizing salts and the like from solutions, in particular for the crystallization of the potassium chloride solution during the extraction of potash. the warm solution is brought to cool in a known manner. What is new is that the solution forced through the cooling device under pressure at a considerable rate will. This measure brings success
ίο sich, daß die sich bereits im Kühler bildenden Kristalle an den Wandungen nicht haften bleiben, den Kühler also nicht verstopfen können. Dabei hat sich der weitere Erfolg gezeigt, daß die so gewonnenen Kristalle ihrem Gehalt nach hochprozentiger sind als die ohne Überdruck ausfallenden Kristalle im bekannten Verfahren.ίο that those already forming in the cooler Crystals do not adhere to the walls, so they cannot clog the cooler. The further success has shown that the crystals obtained in this way are yours The content is higher than the crystals that precipitate without excess pressure in the known Procedure.
Die beiliegende Zeichnung zeigt im Schema eine nach dem neuen Verfahren arbeitende Anlage. Aus dem Vorratsbehälter α gelangt die Löselauge in den Lösekessel b, um aus diesem in den Klärkasten c überzutreten. Aus dem Klärkasten wird die Lösung vermittels der Pumpe d in den Kühler e übergeführt.The attached drawing shows a schematic of a system that works according to the new process. From the storage container α , the dissolving solution reaches the dissolving tank b in order to pass from this into the septic tank c . The solution is transferred from the septic tank to the cooler e by means of the pump d .
Sie tritt dann, nachdem sich die Kristalle im Kühler ausgeschieden haben, mit den Kristallen in die Filteranlage f über. Nach Abfilterung der Kristalle gelangt dann die Lauge in den Sammelbehälter g, aus welchem sie vermittels der Pumpe h ausgehoben und dem Kühler β als Kühlmittel zugeführt wird. Hier erwärmt sich die Lauge auf das erforderliche Maß, d. h. etwa 900 C, um den beschriebenen Kreislauf durch den Vorratsbehälter α zum Lösekessel b usw. von neuem zu beginnen.After the crystals have separated out in the cooler, it then passes with the crystals into the filter system f . After filtering off the crystals, the liquor then reaches the collecting container g, from which it is lifted by means of the pump h and fed to the cooler β as a coolant. Here, the liquor is heated to the required level, ie, about 90 0 C to the described circulation through the reservoir α to the dissolving tank b, etc. to start anew.
Die Kühlleitung ist in dem Ausführungsbeispiel aus einem zweizölligen Kupferrohr von ι mm Wandstärke gedacht, das von einem äußeren Tonrohr von 10 cm lichter Weite umgeben ist. Der Druck, mit welchem die Lösung vermittels der Pumpe d durch den Kühler getrieben wird, wird vorteilhaft bis zu 20 Atmosphären gesteigert. Dabei ist natürlich Sorge zu tragen, daß durch entsprechende Austrittsdrosselung die erforderliche Geschwindigkeit im Kühler erhalten bleibt.In the exemplary embodiment, the cooling line is intended to be a two-inch copper pipe with a wall thickness of ι mm, which is surrounded by an outer clay pipe with a clearance of 10 cm. The pressure with which the solution is driven through the cooler by means of the pump d is advantageously increased up to 20 atmospheres. Care must of course be taken to ensure that the required speed in the cooler is maintained by appropriate outlet throttling.
Die nach dem alten Verfahren erforderliche mehrtägige Abkühlung in offenen Kristallisierkästen kommt durch das neue Verfahren völlig in Wegfall. Die Auskristallisierung ist in wenigen Minuten beendet. Auch sind die Bedienungsmannschaften zum Ausschlagen der Kristallisierkästen überflüssig geworden.Cooling in open crystallization boxes for several days, which was required according to the old method is completely eliminated with the new procedure. The crystallization is in a few Minutes ended. The operating teams for knocking out the crystallization boxes have also become superfluous.
Claims (1)
Verfahren zum Auskristallisieren vonPatent-An saying:
Process for crystallizing out
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE272983C true DE272983C (en) |
Family
ID=529488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT272983D Active DE272983C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE272983C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7047719B2 (en) | 2003-09-19 | 2006-05-23 | Deere & Company | Baler and process |
-
0
- DE DENDAT272983D patent/DE272983C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7047719B2 (en) | 2003-09-19 | 2006-05-23 | Deere & Company | Baler and process |
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