AT76217B - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

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Publication number
AT76217B
AT76217B AT76217DA AT76217B AT 76217 B AT76217 B AT 76217B AT 76217D A AT76217D A AT 76217DA AT 76217 B AT76217 B AT 76217B
Authority
AT
Austria
Prior art keywords
sulfur
production
sulfur dye
dye
oxylignon
Prior art date
Application number
Other languages
German (de)
Inventor
Erik Oeman
Original Assignee
Erik Oeman
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Erik Oeman filed Critical Erik Oeman
Application granted granted Critical
Publication of AT76217B publication Critical patent/AT76217B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung ilung eines Schwefelfarbstoffes. 



   Oxylignin bzw. Oxylignon werden durch Abspaltung der Sulfonsäuregruppen in ligninsulfonsanren bzw.   Hgnonsulfonsauren   Salzen, beispielsweise durch Schmelzen mit Alkali hergestellt. 



   Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Herstellung eines   Schwefelfarbstoffes   aus Oxylignin bzw. Oxylignon. Das Verfahren besteht darin, dass Oxy- 
 EMI1.1 
 Herstellung von Schwofelfarbstoffe geeigneten schwefelhaltigen Stoffen erhitzt wird. Hiebei kann man   zweckmässig   in folgender Weise verfahren :
30 g Oxylignin bzw. Oxylignon,
100 g Schwefelnatrium,   35 y Schwefetblumen,  
100 9 Wasser werden zusammengemischt und erhitzt, wobei die Temperatur bei 110 bis 1150 wahre 20 Minuten erhalten wird. Die erhaltene Masse wird in Wasser gelöst und die Lösung wird mit Säure, z. B. Salzsäure, sauer gemacht, da der Farbstoff wie ein grauschwarzer oder graulicher Niederschlag herausfällt, der von der Lösung getrennt, gewaschen und getrocknet wird.

   Der betreffende Schwefelfarbstoff wird zur Färbung auf dieselbe Weise wie gewöhnliche Schwefelfarbstoffe verwendet, d. h. in warmer Lösung von   Allta) isulfidcn   gelöst. 



   Die oben erwähnte, bei der Erhitzung erhaltene Masse kann auch   unmittelbar bei   Färbung Verwendung finden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the production of a sulfur dye.



   Oxylignin and oxylignon are produced by splitting off the sulfonic acid groups in lignosulfonic acid or Hgnonsulfonic acid salts, for example by melting with alkali.



   The present invention relates to a process for the production of a sulfur dye from oxylignin or oxylignon. The procedure is that oxy-
 EMI1.1
 Production of sulfur-containing substances is heated to suitable sulfur-containing substances. One can proceed in the following way:
30 g oxylignin or oxylignon,
100 g sulfur sodium, 35 y sulfur flowers,
100 9 water are mixed together and heated, the temperature being maintained at 110 to 1150 true 20 minutes. The resulting mass is dissolved in water and the solution is acidified, e.g. B. hydrochloric acid, made acidic, since the dye falls out like a grayish black or grayish precipitate, which is separated from the solution, washed and dried.

   The sulfur dye in question is used for coloring in the same way as ordinary sulfur dyes; H. dissolved in a warm solution of allta) isulphide.



   The above-mentioned mass obtained on heating can also be used directly for coloring.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENTANSPRUCH : Verfahren zur Herstellung eines Schwefelfarbstoffes, dadurch gekennzeichnet, dass Oxylignin bzw. Oxylignon mit Schwefel und Alkalisulfiden oder mit anderen zur Herstellung von Schwefelfarbstoffen geeigneten schwefelhaltigen Stoffen erhitzt wird, worauf, nachdem die Masse in Wasser gelöst worden ist, die Lösung mit Säure sauer gemacht wird, wobei der Schwefelfarbstoff heransfällt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the production of a sulfur dye, characterized in that oxylignin or oxylignon is heated with sulfur and alkali sulfides or with other sulfur-containing substances suitable for the production of sulfur dyes, whereupon, after the mass has been dissolved in water, the solution is made acidic, whereby the sulfur dye falls on. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT76217D 1916-01-20 1916-12-29 Process for the production of a sulfur dye. AT76217B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE76217X 1916-01-20

Publications (1)

Publication Number Publication Date
AT76217B true AT76217B (en) 1919-04-25

Family

ID=20271855

Family Applications (1)

Application Number Title Priority Date Filing Date
AT76217D AT76217B (en) 1916-01-20 1916-12-29 Process for the production of a sulfur dye.

Country Status (1)

Country Link
AT (1) AT76217B (en)

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