DE348381C - Process for the purification of organic bases - Google Patents
Process for the purification of organic basesInfo
- Publication number
- DE348381C DE348381C DE1917348381D DE348381DD DE348381C DE 348381 C DE348381 C DE 348381C DE 1917348381 D DE1917348381 D DE 1917348381D DE 348381D D DE348381D D DE 348381DD DE 348381 C DE348381 C DE 348381C
- Authority
- DE
- Germany
- Prior art keywords
- organic bases
- bases
- salts
- acid
- purification
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Reingewinnung von organischen Basen. In weiterer Ausbildung des durch Patent 348380 geschützten Verfahrens hat sich gezeigt, daß die elektrolytische Trennung der organischen Basen von anorganischen oder organischen Säuren nicht nur beim Betain durchführbar, sondern allgemeinerer Anwendung fähig ist. Man erhält säurefreie oder nahezu säurefreie Lösungen, aus denen man in bekannter Weise die reinen Basen und durch Umsetzung mit anderen Säuren neue Salze der .Basen darstellen kann. Die Säureüberführung gelingt bei den schwachen Basen, wie z. B. dem Glykokoll und dem Harnstoff, am leichtesten. Bei den starken Basen, wie z. B. dem Tetramethylammoniumhydroxyd, bleiben nachweisbare Mengen der Säureanionen im Katolyten zurück. Diese Fälle sind nicht Gegenstand der Erfindung.Process for the purification of organic bases. In a further development of the process protected by patent 348380, it has been shown that the electrolytic separation of organic bases from inorganic or organic acids can not only be carried out with betaine, but is also capable of more general application. Acid-free or virtually acid-free solutions are obtained from which the pure bases can be prepared in a known manner and new salts of the bases can be prepared by reaction with other acids. The acid transfer succeeds in the weak bases, such as. B. glycocolla and urea, the easiest. In the case of the strong bases, such as B. tetramethylammonium hydroxide, detectable amounts of acid anions remain in the catholyte. These cases are not the subject of the invention.
Beispiel i: Eine Lösung, die in 3oo ccm etwa Zoo g salzsauren Harnstoff enthält, wird in den Kathodenraum einer elektrolytischen Zelle gebracht und elektrolysiert. Nach 5o bis 6o Amperestunden steigt die Spannung innerhalb einiger Minuten bis zu ioo Volt, der Katolyt erweist sich als chlorfrei.Example i: A solution that contains about zoo g of hydrochloric acid urea in 3oo ccm contains, is brought into the cathode compartment of an electrolytic cell and electrolyzed. After 5o to 6o ampere hours, the voltage rises up to within a few minutes 100 volts, the catholyte proves to be chlorine-free.
Beispiel 2: In den Kathodenraum einer elektrolytischen Zelle wird eine Lösung von 13 g salzsaurem Anilin in 300 ccm Wasser gefüllt. Bei 25 Ampere steigt die Spannung nach einer Stunde. Die Lösung ist in kurzem chlorfrei. Example 2: A solution of 13 g of hydrochloric aniline in 300 ccm of water is filled into the cathode compartment of an electrolytic cell. At 25 amps, the voltage increases after an hour. The solution is chlorine-free in a short time.
Beispiel 3: Eine Lösung, die 25 g Glykokollsulfat und noch 2 g überschüssige Schwefelsäure in 300 ccm Wasser enthält, wird- in den Kathodenraum einer elektrolytischen Zelle geführt; nach 5o Amperestunden sind alle Anionen der Säure abgewandert.Example 3: A solution which contains 25 g of glycollsulfate and 2 g of excess sulfuric acid in 300 ccm of water is fed into the cathode compartment of an electrolytic cell; after 50 ampere hours all anions of the acid have migrated.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE348381T | 1917-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE348381C true DE348381C (en) | 1922-02-07 |
Family
ID=6257283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1917348381D Expired DE348381C (en) | 1917-06-14 | 1917-06-14 | Process for the purification of organic bases |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE348381C (en) |
-
1917
- 1917-06-14 DE DE1917348381D patent/DE348381C/en not_active Expired
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