DE165149C - - Google Patents

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Publication number
DE165149C
DE165149C DENDAT165149D DE165149DA DE165149C DE 165149 C DE165149 C DE 165149C DE NDAT165149 D DENDAT165149 D DE NDAT165149D DE 165149D A DE165149D A DE 165149DA DE 165149 C DE165149 C DE 165149C
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DE
Germany
Prior art keywords
chlorine
indigo
chlorinated
iodine
carbon tetrachloride
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.)
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Application number
DENDAT165149D
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German (de)
Publication of DE165149C publication Critical patent/DE165149C/de
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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B7/00Indigoid dyes
    • C09B7/02Bis-indole indigos
    • C09B7/04Halogenation thereof

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

M 165149 KLASSE 22 e. M 165149 CLASS 22 e.

FARBWERKE vorm. MEISTER LUCIUS & BRÜNING in HÖCHST a. M.FARBWERKE vorm. MASTER LUCIUS & BRÜNING in HÖCHST a. M.

Verfahren zur Herstellung von chlorierten Indigofarbstoffen.Process for the production of chlorinated indigo dyes.

Patentiert im Deutschen Reiche vom 28. August 1904 ab.Patented in the German Empire on August 28, 1904.

Es wurde gefunden, daß man aus Indigweiß durch Einwirkung von Chlor unter Verwendung indifferenter Verdünnungsmittel und bei Gegenwart von Chlorüberträgern chlorierte Indigofarbstoffe in guter Ausbeute erhalten kann.It has been found that indigo white can be made from under the action of chlorine Use of inert diluents and in the presence of chlorine carriers chlorinated indigo dyes can be obtained in good yield.

Beispiel: In etwa 50 1 Tetrachlorkohlenstoff werden etwa 0,1 kg Jod gelöst. In diese Lösung werden 4 kg trockenes, reines Indigweiß gebracht und die Flüssigkeit mittels eines energisch wirkenden Rührers durchgerührt. Unter fortwährendem' raschen Rühren und unter Kühlung wird nun die berechnete, z. B. aus Braunstein und SaIzsäure entwickelte, zur Bildung von Dichlorindigo genügende Menge Chlor, z. B. 6 Atome, eingeleitet. Wenn alles Chlor verbraucht ist, wird der entstandene Chlorindigo abfiltriert, mit etwas Chlorkohlenstoff gewaschen und getrocknet.Example: Around 50 liters of carbon tetrachloride about 0.1 kg of iodine are dissolved. In this solution 4 kg dry, pure Brought indigo white and the liquid stirred by means of a vigorous stirrer. With continuous' rapid stirring and with cooling the calculated, e.g. B. developed from manganese dioxide and hydrochloric acid to form dichloroindigo sufficient amount of chlorine, e.g. B. 6 atoms initiated. When all the chlorine is used the resulting chlorine indigo is filtered off, washed with a little chlorine carbon and dried.

An Stelle von Jod können auch andere Überträger, wie z. B. Eisenoxydulsalze, ferner an Stelle von Tetrachlorkohlenstoff andere indifferente, wasserfreie Verdünnungsmittel verwendet werden.Instead of iodine, other carriers, such as. B. iron oxide salts, furthermore Instead of carbon tetrachloride, other inert, anhydrous diluents be used.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Herstellung von chloriertem Indigo, darin bestehend, daß man trockenes Indigweiß in indifferenten Lösungsmitteln, z. B. Tetrachlorkohlenstoff, suspendiert, mit Chlor bei gewöhnlichem oder bei erhöhtem Druck unter Mitwirkung von Chlorüberträgern, z. B. Jod, behandelt.Process for the preparation of chlorinated indigo, consisting in that one dry indigo white in indifferent solvents, e.g. B. carbon tetrachloride, suspended, with chlorine at normal or at elevated pressure with the participation of chlorine carriers, e.g. B. Iodine, treated.
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Publications (1)

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DE165149C true DE165149C (en)

Family

ID=430678

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