DE506838C - Process for the preparation of sulfonation products - Google Patents
Process for the preparation of sulfonation productsInfo
- Publication number
- DE506838C DE506838C DEG70319D DEG0070319D DE506838C DE 506838 C DE506838 C DE 506838C DE G70319 D DEG70319 D DE G70319D DE G0070319 D DEG0070319 D DE G0070319D DE 506838 C DE506838 C DE 506838C
- Authority
- DE
- Germany
- Prior art keywords
- preparation
- products
- sulfonation products
- benzaldehyde
- sulfonation
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von Sulfonierungsprodukten Bei der Rektifikation des Benzaldehyds entstehen bekanntlich Rückstände, für welche bis anhin keine Verwendung bekannt war. Es wurde nun gefunden, daß man diese lästigen -Nebenprodukte in wertvolle Hilfsmittel für die Textilindustrie umwandeln kann, wenn man sie mit sulfonierend wirkenden Mitteln, wie z. B. Schwefelsäure, Oleum oder Chlorbehandelt.Process for the preparation of sulphonation products in rectification of the benzaldehyde is known to form residues for which no use has been made up to now was known. It has now been found that these troublesome by-products can be converted into valuable ones Auxiliaries for the textile industry can be converted if they are sulfonated acting means, such. B. sulfuric acid, oleum or chlorine treated.
Die so erhaltenen Produkte bilden in Form ihrer Alkalisalze mehr oder weniger gefärbte graue Pulver, welche in Wasser leicht löslich sind. Durch Zusatz von Mineralsäuren können sie zum Teil mehr oder weniger vollaus ihren Lösungen abgeschieden werden. In manchen Fällen können sie durch Behandeln mit Oxydationsmitteln, wie Hypochloriten. von etwaigen dunkel gefärbten Begleitstoffen befreit werden. Die neuen Produkte besitzen ein ausgezeichnetes Verteilungsvermögen.The products obtained in this way form more or more in the form of their alkali salts less colored gray powders which are easily soluble in water. By addition they can partly more or less fully separated from their solutions from mineral acids will. In some cases they can be treated with oxidants, such as Hypochlorites. be freed of any dark-colored accompanying substances. the new products have excellent distribution properties.
Der Erfolg des Verfahrens war nicht ohne «-c-iteres vorauszusehen, denn während gewisse Harze, wie z. B. Naphtholpech, kaum ohne weitgehende Zersetzungserscheinungen sulfonierbar sind, geben andere Produkte, wie Cumaronharze, Sulfonierungsprodukte, «-elche als Verteilungsmittel ungeeignet sind.The success of the process could not be foreseen without «-c-iteres, because while certain resins such. B. naphthol pitch, hardly without extensive signs of decomposition can be sulfonated, give other products such as coumarone resins, sulfonation products, «-Which are unsuitable as a means of distribution.
Beispiel io Teile des harzartigen Rückstandes, der bei der Rektifikation des Benzaldehyds als Nebenprodukt gewonnen wird, werden allmählich unter gutem Rühren in 15 Teilen einer Schwefelsäure, welche ewa 15% Schwefelsäureanhydrid enthält, eingetragen. Die Mischung wird bei d.o bis 5o0 gerührt, bis eine Probe, mit Wasser verdünnt, beim Erwärmen fast klar löslich ist. Hierauf wird in Wasser ausgetragen, mit Kalkmilch gekalkt, das Calciutnsalz mit Natriumkarbonat umgesetzt und das Natriumsalz durch Eindampfen gewonnen. Es stellt ein hellgraues Pulver dar.Example 10 parts of the resinous residue that occurs during rectification of the benzaldehyde recovered as a by-product, gradually with good stirring in 15 parts of a sulfuric acid, which contains about 15% sulfuric anhydride, registered. The mixture is stirred at d.o to 5o0 until a sample, with water diluted, is almost clearly soluble when heated. Then it is carried out in water, Limed with milk of lime, the calcium salt reacted with sodium carbonate and the sodium salt obtained by evaporation. It is a light gray powder.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH506838X | 1926-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE506838C true DE506838C (en) | 1930-09-09 |
Family
ID=4517204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEG70319D Expired DE506838C (en) | 1926-05-29 | 1927-05-24 | Process for the preparation of sulfonation products |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE506838C (en) |
-
1927
- 1927-05-24 DE DEG70319D patent/DE506838C/en not_active Expired
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