DE23378C - Process for the preparation of iron-free Glauber's salt - Google Patents
Process for the preparation of iron-free Glauber's saltInfo
- Publication number
- DE23378C DE23378C DENDAT23378D DE23378DA DE23378C DE 23378 C DE23378 C DE 23378C DE NDAT23378 D DENDAT23378 D DE NDAT23378D DE 23378D A DE23378D A DE 23378DA DE 23378 C DE23378 C DE 23378C
- Authority
- DE
- Germany
- Prior art keywords
- salt
- glauber
- iron
- preparation
- free
- 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
- 239000010446 mirabilite Substances 0.000 title claims description 8
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 title claims description 8
- 238000002360 preparation method Methods 0.000 title claims description 3
- 238000000034 method Methods 0.000 title description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- 235000002639 sodium chloride Nutrition 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 238000002425 crystallisation Methods 0.000 claims 1
- 230000005712 crystallization Effects 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- CSNNHWWHGAXBCP-UHFFFAOYSA-L mgso4 Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 5
- 229910052928 kieserite Inorganic materials 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 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
- 159000000001 potassium salts Chemical class 0.000 description 1
- 230000001376 precipitating Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002787 reinforcement 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMTPATENT OFFICE
KLASSEGREAT
I S" Soda, Potasche und Alkalien. IS " soda, potash and alkalis.
Vorliegende Erfindung betrifft ein Verfahren, nach welchem sich das schwefelsaure Natron ganz eisenfrei herstellen läfst.The present invention relates to a method by which the sodium sulphate can be produced completely iron-free.
Bei demselben sind besonders zwei Operationen zu unterscheiden:Two operations are to be distinguished in particular:
Erste Operation.First operation.
Eine gewisse Menge krystallisirtes, schwefelsaures Natron wird mit concentrirter Salzsäure behandelt, wodurch ein Theil des ersteren gelöst wird, an dessen Stelle sich die äquivalente Menge Chlornatrium abscheidet. Dieser Procefs ist durch eine bedeutende Temperaturerniedrigung charakterisirt, indem das Thermometer ein Sinken der Temperatur der Flüssigkeit um 240C. anzeigt. Diese Flüssigkeit wird klar abgezogen und bei der nun folgenden zweiten Operation verwendet.A certain amount of crystallized, sulphate of soda is treated with concentrated hydrochloric acid, whereby a part of the former is dissolved, in the place of which the equivalent amount of sodium chloride is deposited. This Procefs is characterized by a significant lowering of the temperature by the thermometer indicates a decrease in the temperature of the liquid at 24 0 C.. This liquid is drawn off clearly and used in the second operation that follows.
Zweite Operation.Second operation.
Von natürlichem oder auch von sogen, künstlichem, bei der Bereitung von Chlorkalium aus Abraumsalz als Rückstand gewonnenem Kieserit wird eine klare Lösung von 200B. angesetzt und in dieser die entsprechende Menge trockenes, gemahlenes Steinsalz durch Kochen gelöst. Hierauf wird die durch die erste Operation erhaltene Flüssigkeit zugesetzt und die heifse Lauge über eine Schicht gemahlenes Steinsalz filtrirt. Ans diesem Filtrat krystallisirt nun bei langsamem Erkalten und dreitägigem Stehen ein Theil des rohen Glaubersalzes aus, welches absolut eisenfrei ist und nach bekannten Methoden zu wasserfreiem Glaubersalz verarbeitet werden kann.Of natural or also absorbed, artificial, in the preparation of chlorine from potassium salt as a residue recovered overburden kieserite a clear solution of 20 0 B. is prepared and dissolved in the appropriate amount of dry, ground rock salt by boiling. The liquid obtained from the first operation is then added, and the hot liquor is filtered over a layer of ground rock salt. A portion of the raw Glauber's salt crystallizes from this filtrate when it cools slowly and has stood for three days, which is absolutely free of iron and can be processed into anhydrous Glauber's salt by known methods.
Durch Eindampfen der Mutterlauge erhält man nun den Rest des Glaubersalzes als wasserärmeres Product, das aber stets durch Chlornatrium verunreinigt ist und deshalb zur Sättigimg der Kieseritlösung verwendet wird.By evaporating the mother liquor, the rest of the Glauber's salt is now obtained as less water Product that is always contaminated with sodium chloride and therefore saturates the kieserite solution is used.
Das Eindampfen der Mutterlauge wird nur bis zu einer gewissen Grenze fortgesetzt, so lange, als sich nämlich noch Glaubersalz abscheidet, während welcher Periode die Lauge ziemlich dieselbe Concentration bewahrt. Ist aber diese Grenze überschritten, d. h. scheidet sich kein Glaubersalz mehr ab, so nimmt von dem Moment ab die Concentration der Lauge merklich und stetig zu, was als Kennzeichen für den Verlauf des Processes dient.The evaporation of the mother liquor is only continued up to a certain limit, see above long, namely, when Glauber's salt was still precipitating, during which period the lye retains pretty much the same concentration. But if this limit is exceeded, i. H. part If no more Glauber's salt is removed, the concentration of the lye decreases from that moment noticeably and steadily, which serves as a characteristic of the course of the process.
Beim Erkalten der Lauge krystallisirt noch Bittersalz aus, welches ebenfalls zur Verstärkung der Kieseritlösung verwendet wird.When the lye cools, Epsom salt crystallizes out, which is also used for reinforcement the kieserite solution is used.
Im Laufe des Betriebes gestalten sich diese Verhältnisse immer günstiger, bis die Menge des auskrystallisirten Glaubersalzes annähernd der vollen Ausbeute entspricht und die einzudampfende Mutterlauge auf ein Minimum reducirt ist.In the course of the operation, these conditions are becoming more and more favorable, until the amount of the crystallized Glauber's salt corresponds approximately to the full yield and that to be evaporated Mother liquor is reduced to a minimum.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE23378C true DE23378C (en) |
Family
ID=299933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT23378D Active DE23378C (en) | Process for the preparation of iron-free Glauber's salt |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE23378C (en) |
-
0
- DE DENDAT23378D patent/DE23378C/en active Active
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