DE436446C - Process for the production of water-soluble, tanning condensation products from aromatic oxy compounds - Google Patents
Process for the production of water-soluble, tanning condensation products from aromatic oxy compoundsInfo
- Publication number
- DE436446C DE436446C DEK86284D DEK0086284D DE436446C DE 436446 C DE436446 C DE 436446C DE K86284 D DEK86284 D DE K86284D DE K0086284 D DEK0086284 D DE K0086284D DE 436446 C DE436446 C DE 436446C
- Authority
- DE
- Germany
- Prior art keywords
- water
- condensation products
- soluble
- production
- oxy compounds
- 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
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Description
Verfahren zur Herstellung von wasserlöslichen, gerbend wirkenden Kondensationsprodukten aus aromatischen Oxyverbindungen. Man stellte bisher Gerbstoffe aus aromatischen Oxyverbindungen durch Kondensation mit Verbindungen aldehydischen Charakters, insbesondere Formaldehyd, her.Process for the production of water-soluble, tanning condensation products from aromatic oxy compounds. So far one made tannins from aromatic Oxy compounds by condensation with compounds of aldehydic character, in particular Formaldehyde.
Die Erfindung betrifft nun ein Verfahren. welches ebenfalls von Phenolen oder Phenolulfosäuren ausgeht. Diese «-erden jedoch in Gegenwart saurer Katalysatoren mit natürlichen Harzen oder Bestandteilen dieser, z. B. Abietinsäure, kondensiert. Geht man bei der Kondensation von Phenolen aus, so werden die erhaltenen Produkte nachträglich mit <ulfonierenden Mitteln behandelt.The invention now relates to a method. which also from phenols or phenol sulfonic acids. However, these "earths" in the presence of acidic catalysts with natural resins or components of these, e.g. B. abietic acid, condensed. If phenols are used as the starting point for the condensation, the products obtained are subsequently treated with sulfonating agents.
Beispiele. t. 6o g Kolophonium werden mit 20 g Phenol und 5 Prozent Schwefelsäure (auf Phenol berechnet) erwärmt, bis sich eine klare Lösung ergibt. Hierauf gibt man langsam 7o g konzentrierte Schwefelsäure hinzu und läflt unter Umrühren die Temperatur bis auf 70° ansteigen. Das so erhaltene Produkt ist in Wasser löslich und wirkt stark leimfällend. Man kann auch zu der klaren Schmelze von Phenol und Kolophonium vorsichtig einige Tropfen konzentrierter Schwefelsäuxe geben und nach Beendigung der eintretenden lebhaften Reaktion sulfonieren.Examples. t. 60 g rosin are heated with 20 g phenol and 5 percent sulfuric acid (calculated on phenol) until a clear solution is obtained. Then 70 g of concentrated sulfuric acid are slowly added and the temperature is allowed to rise to 70 ° with stirring. The product obtained in this way is soluble in water and has a strong glue-precipitating effect. A few drops of concentrated sulfuric acid can also be carefully added to the clear melt of phenol and rosin and sulfonated when the vigorous reaction has ended.
2. Die Kondensation verläuft in Gegenwart überschüssigen Phenols leichter: so kann man Phenol mit Kolophonium, z. B. im Verhältnis r : i, kondensieren.2. The condensation proceeds more easily in the presence of excess phenol: so you can phenol with rosin, e.g. B. in the ratio r: i, condense.
In genau derselben Weise können die in den nachfolgenden Beispielen beschriebenen Produkte hergestellt werden. 3. Gerbstoff aus 20 g Kresol, .1.o g Kolophonium und d.o g konzentrierter Schwefelsäure.In exactly the same way, the examples below products described are manufactured. 3. Tanning agent from 20 g of cresol, .1.o g Rosin and d.o g concentrated sulfuric acid.
Gerbstoff aus 25 g a-Naphthol, 2o g Kolophonium und .4o g konzentrierter Schwefelsäure.Tanning agent made from 25 g of a-naphthol, 20 g of rosin and .4o g of concentrated Sulfuric acid.
5. Gerbstoff aus 2o g ß-Naphthol, 25 g Kolophonium und 40 g konzentrierter Schwefelsäure.5. Tanning agent from 20 g ß-naphthol, 25 g rosin and 40 g concentrated Sulfuric acid.
6. Das Kolophonium kann durch Terpentin oder einzelne seiner Fraktionen ersetzt wer-. den. Beim Arbeiten mit Terpentin löst man das Phenol in diesem auf, kondensiert mit wenigen Tropfen konzentrierter Schwefelsäure und sulfoniert. So werden 2o g Phenot mit 29 g Terpentin und 36 g konzentrierter Schwefelsäure verarbeitet, oder 20 g a-Naphthol, i9 g Pinen und 30 g konzentrierte Schwefelsäure.6. The rosin can be replaced by turpentine or some of its fractions. the. When working with turpentine, the phenol is dissolved in it, condensed with a few drops of concentrated sulfuric acid and sulfonated. 20 g of phenot are processed with 29 g of turpentine and 36 g of concentrated sulfuric acid, or 20 g of a-naphthol, 19 g of pinene and 30 g of concentrated sulfuric acid.
Die erhaltenen Produkte sind dunkel gefärbte, im völlig trockenen Zustande spröde, harzähnliche Massen. Sie lösen sich leicht in Wasser mit dunkler gelbbrauner bis braungrüner Farbe. Aus der wässerigen Lösung werden alle Stoffe sehr leicht durch verdünnte Schwefelsäure wieder ausgeschieden. In wässeriger Lösung wirken sie alle stark leimfällend; beim i\leutralisieren der Lösungen verschwindet diese Wirkung auf Leimlösung.The products obtained are dark colored, when completely dry Form brittle, resin-like masses. They dissolve easily in water with a darker color yellow-brown to brown-green color. All substances come from the aqueous solution very easily excreted by dilute sulfuric acid. In aqueous solution they all have a strong glue-precipitating effect; disappears when the solutions are neutralized this effect on glue solution.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK86284D DE436446C (en) | 1923-06-21 | 1923-06-21 | Process for the production of water-soluble, tanning condensation products from aromatic oxy compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK86284D DE436446C (en) | 1923-06-21 | 1923-06-21 | Process for the production of water-soluble, tanning condensation products from aromatic oxy compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE436446C true DE436446C (en) | 1926-11-02 |
Family
ID=7235616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK86284D Expired DE436446C (en) | 1923-06-21 | 1923-06-21 | Process for the production of water-soluble, tanning condensation products from aromatic oxy compounds |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE436446C (en) |
-
1923
- 1923-06-21 DE DEK86284D patent/DE436446C/en not_active Expired
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