DE694371C - lit - Google Patents
litInfo
- Publication number
- DE694371C DE694371C DE1939K0154490 DEK0154490D DE694371C DE 694371 C DE694371 C DE 694371C DE 1939K0154490 DE1939K0154490 DE 1939K0154490 DE K0154490 D DEK0154490 D DE K0154490D DE 694371 C DE694371 C DE 694371C
- Authority
- DE
- Germany
- Prior art keywords
- carnallite
- potassium chloride
- potassium
- evaporation
- lit
- 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
Links
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Gewinnung von Chlorkalium aus Carnallit Das Hauptpatent 692 896 betrifft ein Verfahren zur Herstellung von Chlorkalium aus Carnallit, nach dem .die in der üblichen Weise verhaltene Carnallitläsung nicht zwecks Abscheidung von KaliumchloTid durch Kristallisation gekühlt, sondern direkt verdampft werden soll. Während der Verdampfung scheidet sich das sonst durch Kristallisation erhaltene- Kaliumchlo@rid aus der: heißen Lauge ab, während die vom Chl-orkalium getrennte Lauge nach der Kühlung Carnallit aus der üblichen Endlauge abscheidet.Process for the production of potassium chloride from carnallite The main patent 692 896 relates to a process for the production of potassium chloride from carnallite, according to which the carnallite solution, which is behaved in the usual way, is not to be cooled for the purpose of separating potassium chloride by crystallization, but to be evaporated directly. During the evaporation, the potassium chloride otherwise obtained by crystallization separates from the hot lye, while the lye separated from the chloro-potassium separates carnallite from the usual final lye after cooling.
Es hat sich nun gezeigt, daß das Chlorkalium, welches bei der direkten Verdampfung der beim Lösen des Carnallitserhaltenen heißen Lösungen anfällt, nicht unerhebliche Mengen taniger Beimengungen enthält. 'Dies wird vermieden, wenn die heißen. Lösungen vor der Verdampfung um i o bis 15' tierabgekühlt und erst dann in die Verdampfapparate gezogen werden. Die hierbei erfolgende Salzabscheidung reißt die to.nigen Beimengungen schnell zu Boden. Diese Salzabscheidung besteht aber, wie gefunden wurde, aus fast reinem Natriumdhlorid. Die sehr erwünschte Folge ist daher, daß das bei der nachfolgenden Verdampfung gewonnene Rohchlorkalium einen höheren KO-Gehalt aufweist.It has now been shown that the potassium chloride, which in the direct Evaporation of the hot solutions obtained when dissolving the carnallite does not occur Contains negligible amounts of taniger admixtures. 'This is avoided if the mean. Solutions cooled by 10 to 15 'before evaporation and only then be drawn into the evaporators. The resulting salt deposition cracks the numerous admixtures quickly fall to the ground. However, this salt deposition exists as found, from almost pure sodium chloride. The very desirable consequence is hence that the crude chlorine potassium obtained in the subsequent evaporation one has a higher KO content.
Diese Erscheinung beruht wohl darauf, daß die Löserückstände an Kaliumchlorid mehr oder weniger ,erschöpft sind, während -das Natriumchlarid immer im überschuß vorhanden ist.This phenomenon is probably due to the fact that the solution residues of potassium chloride more or less, are exhausted, while the sodium chloride is always in excess is available.
Der Erf:ndungsZedanke des voa:liegenden Verfahrens wird darin ,gesehen, daß die Carn.a.llitlösunge@n nicht wie bei dem -Verfahren gemäß dem Haugtpatent direkt, sondern nach ein-er voraufgehenden Kühlung um i o his 15' verdampft werden.The idea of the invention of the voa: lying process is seen in that the Carn.a.llitlösunge@n not as in the method according to the Haugt patent evaporated directly, but after a preceding cooling by 10 to 15 '.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1939K0154490 DE694371C (en) | 1939-05-18 | 1939-05-18 | lit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1939K0154490 DE694371C (en) | 1939-05-18 | 1939-05-18 | lit |
Publications (1)
Publication Number | Publication Date |
---|---|
DE694371C true DE694371C (en) | 1940-07-31 |
Family
ID=7253059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1939K0154490 Expired DE694371C (en) | 1939-05-18 | 1939-05-18 | lit |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE694371C (en) |
-
1939
- 1939-05-18 DE DE1939K0154490 patent/DE694371C/en not_active Expired
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