DE293693C - - Google Patents
Info
- Publication number
- DE293693C DE293693C DENDAT293693D DE293693DA DE293693C DE 293693 C DE293693 C DE 293693C DE NDAT293693 D DENDAT293693 D DE NDAT293693D DE 293693D A DE293693D A DE 293693DA DE 293693 C DE293693 C DE 293693C
- Authority
- DE
- Germany
- Prior art keywords
- phosphorus oxychloride
- weight
- water bath
- oxynaphthalene
- solution
- 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
- XHXFXVLFKHQFAL-UHFFFAOYSA-N Phosphoryl chloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 claims description 10
- 150000003460 sulfonic acids Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- 230000001264 neutralization Effects 0.000 description 2
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-Naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N sulfonic acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
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)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
in KARLSRUHE.in KARLSRUHE.
bzw. deren Sulfosäuren.or their sulfonic acids.
Zusatz zum Patent 293042.Addendum to patent 293042.
Durch das Hauptpatent 293042 ist ein Verfahren zur Herstellung von zum Gerben geeigneten Kondensationsprodukten aus a- oder ß-Naphtol bzw. deren Sulfosäuren geschützt, welches unter anderem darin besteht, daß man gleiche Gewichtsteile einer Oxynaphtalinsulfosäure,und Phosphoroxychlorid bei Wasserbadtemperatur aufeinander einwirken läßt.The main patent 293042 protects a process for the preparation of condensation products suitable for tanning from α- or ß-naphtol or their sulfonic acids, which, among other things, consists in allowing equal parts by weight of an oxynaphthalene sulfonic acid and phosphorus oxychloride to act on one another at water bath temperature.
Es wurde nun weiter gefunden, daß, wenn die Menge des Phosphoroxychlorids und die Temperatür erhöht werden, ein erheblich schwerer lösliches, aber sehr stark leimfällendes Kondensationsprodukt erhalten wird.It has now been further found that when the amount of phosphorus oxychloride and the Temperatur can be increased, a considerably more difficult to dissolve, but very strongly glue-precipitating Condensation product is obtained.
jg Beispiel.jg example.
25 Gewichtsteile 2-Oxynaphtalin-6-sulfosäure . werden mit 30 Gewichtsteilen Phosphoroxychlorid zusammengebracht, langsam auf dem Wasserbad erwärmt und 1 Stunde auf dem ao kochenden Wasserbad gehalten. Hierauf erhitzt man auf 115 bis 120V bis der Geruch nach Phosphoroxychlorid verschwunden ist. Die entstandene, in Wasser* schwer" lösliche Schmelze wird zunächst mit Wasser gewaschen und dann in kochendem Wasser unter Zugabe von wasserfreiem Natriumcarbonat bis zur neutralen oder schwach alkalischen Reaktion gelöst. Beim Erkalten sowie beim Ansäuern mit Essigsäure oder schwacher Salzsäure bleibt das einmal gelöste Produkt in Lösung und kann in dieser Form zum Gerben verwendet werden. Durch starke Säuren wird es als weißer amorpher Niederschlag wieder aus der Lösung ausgefällt.25 parts by weight of 2-oxynaphthalene-6-sulfonic acid. are brought together with 30 parts by weight of phosphorus oxychloride, slowly on the Heated water bath and kept on the ao boiling water bath for 1 hour. Then heated to 115 to 120V until the smell of phosphorus oxychloride has disappeared. The resulting melt, which is sparingly soluble in water, is first washed with water and then in boiling water with the addition of anhydrous sodium carbonate until neutral or weakly alkaline reaction. When cooling as well as when acidifying with acetic acid or weak hydrochloric acid, the product once dissolved remains in solution and can be used in this form for tanning. Strong acids make it white amorphous precipitate precipitated out of the solution again.
Sowohl die alkalische als auch die neutrale und die saure Lösung geben mit Leimlösung starke Niederschläge. 'Both the alkaline as well as the neutral and the acidic solution give with glue solution heavy rainfall. '
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE293693C true DE293693C (en) |
Family
ID=548335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT293693D Active DE293693C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE293693C (en) |
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0
- DE DENDAT293693D patent/DE293693C/de active Active
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