DE135408C - - Google Patents
Info
- Publication number
- DE135408C DE135408C DENDAT135408D DE135408DA DE135408C DE 135408 C DE135408 C DE 135408C DE NDAT135408 D DENDAT135408 D DE NDAT135408D DE 135408D A DE135408D A DE 135408DA DE 135408 C DE135408 C DE 135408C
- Authority
- DE
- Germany
- Prior art keywords
- dye
- patent specification
- reaction
- blue dye
- melt
- 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
- 238000000034 method Methods 0.000 claims description 6
- 239000001045 blue dye Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims 1
- 239000000975 dye Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- FGIUAXJPYTZDNR-UHFFFAOYSA-N Potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
- 235000010333 potassium nitrate Nutrition 0.000 description 2
- 239000004323 potassium nitrate Substances 0.000 description 2
- 230000001476 alcoholic Effects 0.000 description 1
- 150000001454 anthracenes Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 239000003638 reducing agent Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
- C09B5/44—Azines of the anthracene series
- C09B5/46—Para-diazines
- C09B5/48—Bis-anthraquinonediazines (indanthrone)
- C09B5/50—Preparation by alkaline melting of 2-amino-anthraquinones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Coloring (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
KLASSE 226.CLASS 226.
In der Patentschrift 129845 ist ein Verfahren zur Darstellung eines blauen Farbstoffs der Anthracenreihe beschrieben, welches darin besteht, dafs man ß-Amidoanthrachinon bezw. seine Sulfosäure oder die Hydrirungsproducte dieser Körper mit Alkali verschmilzt, die Schmelze unter Luftzutritt in Wasser löst und die alkalilöslichen Nebenproducte der Reaction durch Filtriren entfernt.In patent specification 129845 is a method for the representation of a blue dye of the anthracene series, which consists of that one ß-amidoanthraquinone respectively. its sulphonic acid or the products of hydration this body fuses with alkali, which The melt dissolves in water with the admission of air, and the alkali-soluble by-products of the reaction removed by filtration.
Es ist dann in der Patentschrift 135407 gezeigt, dafs dieser Farbstoff nicht einheitlich.ist, sondern aus einem Gemisch zweier blauer, sich chemisch und physikalisch anscheinend sehr nahestehender Farbstoffe besteht, welche mit A und B bezeichnet wurden und der Kürze halber auch im Nachstehenden so bezeichnet werden.It is then shown in patent specification 135407 that this dye is not uniform, but consists of a mixture of two blue, chemically and physically apparently very closely related dyes, which have been designated with A and B and, for the sake of brevity, also designated as follows below will.
Es wurde nunmehr gefunden, dafs diese beiden Farbstoffe A und B nicht jedesmal in relativ gleichen Mengenverhältnissen entstehen, dafs man vielmehr durch geeignete Abänderung der Schmelzbedingungen die Reaction so leiten kann, dafs entweder der Farbstoff A oder B das Hauptproduct bildet. Verfährt man gemäfs dem Beispiel der Patentschrift 129845, so erhält man ein Farbstoffgemisch, welches zu ca. 2/3 aus A, zu ca. Y3 aus B besteht. (Die dort angegebenen Reactionen gelten für ein besonders gereinigtes, fast nur aus A bestehendes Product.) Nimmt man dagegen die Schmelze bei Gegenwart von Oxydationsmitteln, z. B. bei starkem Zutritt von Luftsauerstoff oder unter Zusatz von Kalisalpeter, vor, so besteht der erhaltene Farbstoff der Hauptsache nach aus A, während B nur in ganz untergeordneter Menge vorhanden ist. Arbeitet man aber bei niedrigerer Temperatur, als im Beispiel der Patentschrift 129845 angegeben ist, und zwar zweckmäfsig bei Gegenwart eines Reductionsmittels, so ist das Hauptproduct der Reaction der Farbstoff B. Dies ist z. B. der Fall, wenn man ß-Amidoanthrachinon mit alkoholischem Aetznatron erhitzt.It has now been found that these two dyes A and B do not always arise in relatively equal proportions, but that by changing the melting conditions appropriately, the reaction can be directed so that either dye A or B forms the main product. If the procedure gemäfs the example of Patent Specification 129845, one obtains a dye mixture, which consists of approximately 2/3 of from A to about Y 3 from B. (The reactions given there apply to a specially purified product consisting almost entirely of A.) If, on the other hand, the melt is used in the presence of oxidizing agents, e.g. B. in the case of strong ingress of atmospheric oxygen or with the addition of potassium nitrate, the dye obtained consists mainly of A, while B is only present in a very minor amount. If, however, one works at a lower temperature than is indicated in the example of patent specification 129845, and in fact expediently in the presence of a reducing agent, the main product of the reaction is the dye B. This is e.g. B. the case when ß-amidoanthraquinone is heated with alcoholic caustic soda.
Das Verfahren wird durch folgende Beispiele erläutert:The procedure is illustrated by the following examples:
10 kg ß-Amidoanthrachinon werden mit 20 bis 50 kg Kalihydrat und 2 kg Kalisalpeter auf 2oo° C. erhitzt. Man steigert nun die Temperatur bis auf 2500 C. und behält diese Temperatur während Y2 Stunde bei. Die Schmelze wird in Wasser gegossen und aufgekocht. Der sich ausscheidende Farbstoff wird filtrirt und ausgewaschen.10 kg of ß-amidoanthraquinone are heated to 200 ° C. with 20 to 50 kg of potassium hydrate and 2 kg of potassium nitrate. The temperature is now increased to 250 ° C. and this temperature is maintained for 2 hours. The melt is poured into water and boiled. The dye which separates out is filtered and washed out.
Das Hauptproduct der Reaction ist der Farbstoff A, geringe Mengen des Farbstoffs BThe main product of the reaction is dye A, small amounts of dye B.
Frühere Zusatzpatente: 129846, 129847, 129848, 135407.Previous additional patents: 129846, 129847, 129848, 135407.
können gemäfs dem in der Patentschrift 135407 beschriebenen Verfahren abgetrennt werden.can according to the patent specification 135407 processes described are separated.
Beispiel. II. ■Example. II. ■
10 kg ß-Amidoanthrachinon werden mit 50 kg Kalihydrat und 25 kg Alkohol (absolut) vermischt und auf 140 bis 1500C. 3 Stunden erhi-tzt. Die Schmelze wird in Wasser gegossen und der dunkelblaue Niederschlag abfiltrirt. Das Hauptproduct der Reaction ist der Farbstoff B, eine Abtrennung der geringen vorhandenen Mengen A kann nach dem in der Patentschrift 135407 beschriebenen Verfahren ausgeführt werden.10 kg ß-Amidoanthrachinon are mixed (absolute) with 50 kg of potassium hydroxide and 25 kg alcohol and at 140 to 150 0 C. 3 hours heating wine-TZT. The melt is poured into water and the dark blue precipitate is filtered off. The main product of the reaction is the dye B; the small amounts of A present can be separated off by the process described in patent specification 135407.
Claims (1)
Weitere Ausbildung des durch Patent 129845 geschützten Verfahrens, zwecks vorwiegender Bildung des blauen Farbstoffs A, darin bestehend, dafs man die Verschmelzung in Gegenwart von oxydirenden. Mitteln vornimmt. Patent Claims:
Further development of the process protected by patent 129845, for the purpose of predominantly forming the blue dye A, consisting in that the fusion is carried out in the presence of oxidizing agents. Funds.
Publications (1)
Publication Number | Publication Date |
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DE135408C true DE135408C (en) |
Family
ID=403455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT135408D Active DE135408C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE135408C (en) |
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