CH147699A - Process for the production of an orange vat dye. - Google Patents

Process for the production of an orange vat dye.

Info

Publication number
CH147699A
CH147699A CH147699DA CH147699A CH 147699 A CH147699 A CH 147699A CH 147699D A CH147699D A CH 147699DA CH 147699 A CH147699 A CH 147699A
Authority
CH
Switzerland
Prior art keywords
production
vat dye
anthanthrone
orange vat
orange
Prior art date
Application number
Other languages
German (de)
Inventor
Cassella Co G M B H Leopold
Original Assignee
Cassella Leopold & Co Gmbh
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
Priority claimed from DEC37412D external-priority patent/DE458598C/en
Application filed by Cassella Leopold & Co Gmbh filed Critical Cassella Leopold & Co Gmbh
Publication of CH147699A publication Critical patent/CH147699A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines orangen     Küpenfarbstoifes.       Vorliegendes Patent bezieht sich auf ein  Verfahren     ,zur    Herstellung eines orangen       Küpenfarbstoffes,    dadurch gekennzeichnet, dass  man     Anthanthron    in wässeriger Suspension  chloriert.  



  Das so erhaltene chlorierte     Anthanthron     ist identisch mit dem     Farbstoff    des Schweizer  Patentes Nr. 124528.    <I>Beispiel</I>     r:     10 Teile     Anthanthron    (in feiner Verteilung,  wie man es zum Beispiel durch Lösen in  konzentrierter Schwefelsäure, Eingiessen in  Wasser, Absaugen und     Säurefreiwaschen,    er  hält) werden in 150 Teilen Wasser suspendiert.  Man gibt ein Teil Eisen und 0,1 Teil Jod  dazu und leitet unter Rühren bei<B>90-950</B>  mehrere Stunden Chlor ein. Die Aufarbeitung  erfolgt in der üblichen Weise.  



  <I>Beispiel 2</I>  1 Teil     Anthanthron    wird in 20 Teilen  konzentrierter Schwefelsäure gelöst und die  Lösung in 200 Teile Wasser eingetragen.  Hierdurch scheidet sich     Anthanthron    in fein    verteilter Form ab. Zu dieser Suspension  werden 20 Teile Kochsalz zugefügt und die  Mischung auf 60   erwärmt. Bei dieser Tem  peratur lässt man im Laufe einiger Stunden  eine wässerige Lösung von 5 Teilen     Natrium-          hypochlorit    einlaufen und hält die Reaktions  masse darnach noch einige Zeit bei 60-65  .  Dann wird das chlorierte     Antbanthron        abfil-          triert    und säurefrei gewaschen.



  Process for the production of an orange vat dye. The present patent relates to a process for the production of an orange vat dye, characterized in that anthanthrone is chlorinated in aqueous suspension.



  The chlorinated anthanthrone obtained in this way is identical to the dye of Swiss patent No. 124528. <I> Example </I> r: 10 parts of anthanthrone (finely divided, as can be done, for example, by dissolving in concentrated sulfuric acid, pouring into water, Sucking off and washing acid-free, he holds) are suspended in 150 parts of water. One part iron and 0.1 part iodine are added and chlorine is passed in for several hours at <B> 90-950 </B> while stirring. Working up is carried out in the usual way.



  <I> Example 2 </I> 1 part of anthanthrone is dissolved in 20 parts of concentrated sulfuric acid and the solution is added to 200 parts of water. As a result, anthanthrone separates in finely divided form. 20 parts of sodium chloride are added to this suspension and the mixture is heated to 60 °. At this temperature, an aqueous solution of 5 parts of sodium hypochlorite is run in over the course of a few hours and the reaction mass is then kept at 60-65 for some time. The chlorinated antbanthrone is then filtered off and washed free of acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines orangen Küpenfarbstoffes, dadurch gekennzeichnet, dass man Anthanthron in wässeriger Suspension chloriert. Das so erhaltene chlorierte Anthanthron ist identisch mit dem Farbstoff des Schweizer Patentes Nr. 124528. UNTERANSPRUCH: Verfahren nach Patentansprucb, dadurch gekennzeichnet, dass man die Reaktion in Gegenwart eines Katalysators durchführt. PATENT CLAIM: Process for the production of an orange vat dye, characterized in that anthanthrone is chlorinated in aqueous suspension. The chlorinated anthanthrone obtained in this way is identical to the dye of Swiss patent no. 124528. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the reaction is carried out in the presence of a catalyst.
CH147699D 1925-11-07 1929-12-02 Process for the production of an orange vat dye. CH147699A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEC37412D DE458598C (en) 1925-11-07 1925-11-07 Process for the production of orange dyes
CH124528T 1926-11-02

Publications (1)

Publication Number Publication Date
CH147699A true CH147699A (en) 1931-06-15

Family

ID=29216709

Family Applications (7)

Application Number Title Priority Date Filing Date
CH130618D CH130618A (en) 1925-11-07 1926-11-02 Process for the preparation of an orange-colored vat dye of the anthanthrone series.
CH130617D CH130617A (en) 1925-11-07 1926-11-02 Process for the preparation of an orange-colored vat dye of the anthanthrone series.
CH131505D CH131505A (en) 1925-11-07 1926-11-02 Process for the preparation of an orange-colored vat dye of the anthanthrone series.
CH135114D CH135114A (en) 1925-11-07 1926-11-02 Process for the preparation of an orange-colored vat dye of the anthanthrone series.
CH124528D CH124528A (en) 1925-11-07 1926-11-02 Process for the preparation of an orange-colored vat dye of the anthanthrone series.
CH147042D CH147042A (en) 1925-11-07 1929-11-25 Process for the production of an orange vat dye.
CH147699D CH147699A (en) 1925-11-07 1929-12-02 Process for the production of an orange vat dye.

Family Applications Before (6)

Application Number Title Priority Date Filing Date
CH130618D CH130618A (en) 1925-11-07 1926-11-02 Process for the preparation of an orange-colored vat dye of the anthanthrone series.
CH130617D CH130617A (en) 1925-11-07 1926-11-02 Process for the preparation of an orange-colored vat dye of the anthanthrone series.
CH131505D CH131505A (en) 1925-11-07 1926-11-02 Process for the preparation of an orange-colored vat dye of the anthanthrone series.
CH135114D CH135114A (en) 1925-11-07 1926-11-02 Process for the preparation of an orange-colored vat dye of the anthanthrone series.
CH124528D CH124528A (en) 1925-11-07 1926-11-02 Process for the preparation of an orange-colored vat dye of the anthanthrone series.
CH147042D CH147042A (en) 1925-11-07 1929-11-25 Process for the production of an orange vat dye.

Country Status (1)

Country Link
CH (7) CH130618A (en)

Also Published As

Publication number Publication date
CH130617A (en) 1928-12-15
CH124528A (en) 1928-03-16
CH131505A (en) 1929-02-15
CH130618A (en) 1928-12-15
CH135114A (en) 1929-08-31
CH147042A (en) 1931-05-15

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