CH97788A - Process for the production of anthraquinone and its derivatives. - Google Patents
Process for the production of anthraquinone and its derivatives.Info
- Publication number
- CH97788A CH97788A CH97788DA CH97788A CH 97788 A CH97788 A CH 97788A CH 97788D A CH97788D A CH 97788DA CH 97788 A CH97788 A CH 97788A
- Authority
- CH
- Switzerland
- Prior art keywords
- anthraquinone
- oxygen
- production
- derivatives
- containing compounds
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Arbeitsverfahren zur Herstellung von Anthrachinon und seinen Derivaten. In dein Hauptpatent Nr. 84262 ist ein Verfahren ZUr Herstellung von Anthrachinon und seinen Derivaten aus entsprechenden Verbindungen niederer Oxydatiotisstufen be schrieben, welches dadurch gekennzeichnet ist, dass die zu oxydierenden Verbindungen mit Sauerstoff in Gegenwart sauerstoffhaltiger Verbindungen des Stickstoffs als Katalysator und gegebenenfalls weiterer Sauerstoffüber- träger behandelt werden. Zweckmässig ar beitet man in Gegenwart von Essigsäure.
Nach dem Zusatzpatent Nr. <B>91090</B> werden an Stelle von Essigsäure andere saure Lö- sungs- oder Suspensionsmittel, z. B. Propion- säure, oder aber gleichzeitig mit den sauren Lösungsmitteln an und für sich nicht geeig nete Mittel, wie Wasser, Nitrobenzol, Dichlor- benzol, verwendet.
Es wurde nun gefunden, dass der Zusatz der sauerstoffhaltigen Verbindungen des Stick- stofts dadurch erfolgen kann, dass man der sauren Reaktionsmasse der zu oxydierenden Stoffe geringe iMengen in Wasser gelöster Nitrite während des Einleitens von Sauer- stoff zusetzt.
Dabei wird ausserdem noch in sofern ein wesentlicher Vorteil erreicht, als zum Beispiel bei Verwendung von Natrium- nitrit als Katalysator und Essigsäure als Lösungs- oder Suspensionsmittel ersteres in Natriumacetat übergeführt und die schädliche Wirkung der während des Verfahrens etwa entstehenden Salpetersiture durch das ent- StaDdene Natriumacetat unschädlich gemacht wird, indem sich Natriumnitrat bildet.
<I>Beispiel<B>1:</B></I> <B>100 kg 91</B> 1/oiges Anthracen werden in einem geschlossenen Gefäss mit<B>500 kg</B> Essig säure auf etwa<B>90'</B> unter Rühren erhitzt und während man ungefähr<B>1-5 kg</B> Natriumni- trit in wässeriger Lösung zugibt, unter Ein leiten von Sauerstoff oxydiert. Nachdem die Absorption des Sauerstoffs aufgehört hat, lässt man erkalten und saugt nun das entstandene Anthrachinon ab.
Die Ausbeute beträgt etwa 95'/o, der Schmelzpunkt liegt bei<B>281',</B> das Anthrachinon ist ungefähr 98%ig. <I>Beispiel 2:</I> 100 kg 95%iges Aptliracen werdet) in einem geschlossenen Gefäss mit 200 <B>kg</B> Pro- pionsäure und 200<B>kg</B> Benzol unter Rühren erhitzt.
Während man<B>1-5 kg</B> Natriumni- trit in wässeriger Lösung zugibt, leitet man in das Gemisch Sauerstoff ein. Die weitere Behandlung ei-folgt wie in Beispiel<B>1.</B> Die Ausbeute und Reinheit des Anthrachinons stimmen mit denjenigen in Beispiel<B>1</B> überein.
Process for the production of anthraquinone and its derivatives. In your main patent no. 84262, a process for the production of anthraquinone and its derivatives from corresponding compounds of lower oxidation levels is described, which is characterized in that the compounds to be oxidized with oxygen in the presence of oxygen-containing compounds of nitrogen as a catalyst and, if necessary, further oxygen carriers be treated. It is expedient to work in the presence of acetic acid.
According to the additional patent no. <B> 91090 </B>, other acidic solvents or suspending agents, e.g. B. propionic acid, or simultaneously with the acidic solvents in and of themselves unsuitable agents, such as water, nitrobenzene, dichlorobenzene, are used.
It has now been found that the oxygen-containing compounds of nitrogen can be added by adding small amounts of nitrites dissolved in water to the acidic reaction mass of the substances to be oxidized while oxygen is being introduced.
In addition, a significant advantage is achieved, for example, when using sodium nitrite as a catalyst and acetic acid as a solvent or suspending agent, the former is converted into sodium acetate and the harmful effect of any nitric acid produced during the process is caused by the sodium acetate is rendered harmless by the formation of sodium nitrate.
<I> Example<B>1:</B> </I> <B> 100 kg 91 </B> 1 / o anthracene in a closed vessel with <B> 500 kg </B> acetic acid to about <B> 90 '</B> heated with stirring and while adding about <B> 1-5 kg </B> sodium nitrite in aqueous solution, oxidized while introducing oxygen. After the absorption of the oxygen has stopped, it is allowed to cool down and the anthraquinone that has formed is sucked off.
The yield is about 95%, the melting point is 281%, and the anthraquinone is about 98% pure. <I> Example 2: </I> 100 kg of 95% aptliracene are heated in a closed vessel with 200 <B> kg </B> propionic acid and 200 <B> kg </B> benzene while stirring.
While adding 1-5 kg sodium nitrite in aqueous solution, oxygen is passed into the mixture. The further treatment ei-follows as in Example <B> 1. </B> The yield and purity of the anthraquinone agree with those in Example <B> 1 </B>.
Claims (1)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC27370D DE406245C (en) | 1918-05-18 | 1918-05-18 | Process for the production of anthraquinone and its derivatives |
DE156540X | 1919-12-27 | ||
DEC29657D DE406778C (en) | 1918-05-18 | 1920-09-13 | Process for the preparation of anthraquinone or its derivatives |
Publications (1)
Publication Number | Publication Date |
---|---|
CH97788A true CH97788A (en) | 1923-02-16 |
Family
ID=40394003
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH84262A CH84262A (en) | 1918-05-18 | 1919-05-17 | Process for the production of anthraquinone and its derivatives |
CH91090D CH91090A (en) | 1918-05-18 | 1920-12-01 | Process for the production of anthraquinone and its derivatives. |
CH97788D CH97788A (en) | 1918-05-18 | 1921-06-15 | Process for the production of anthraquinone and its derivatives. |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH84262A CH84262A (en) | 1918-05-18 | 1919-05-17 | Process for the production of anthraquinone and its derivatives |
CH91090D CH91090A (en) | 1918-05-18 | 1920-12-01 | Process for the production of anthraquinone and its derivatives. |
Country Status (6)
Country | Link |
---|---|
AT (3) | AT101322B (en) |
CH (3) | CH84262A (en) |
DE (3) | DE406245C (en) |
DK (3) | DK28409C (en) |
FR (1) | FR528373A (en) |
GB (3) | GB156215A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980001693A1 (en) * | 1979-02-12 | 1980-08-21 | Ici Ltd | Manufacture of anthraquinone |
DE10260549B4 (en) * | 2002-12-21 | 2006-04-13 | Rütgers Chemicals AG | Process for the preparation of anthraquinone |
-
1918
- 1918-05-18 DE DEC27370D patent/DE406245C/en not_active Expired
-
1919
- 1919-05-17 CH CH84262A patent/CH84262A/en unknown
- 1919-06-18 AT AT101322D patent/AT101322B/en active
- 1919-08-15 DE DEC28632D patent/DE406777C/en not_active Expired
-
1920
- 1920-09-13 DE DEC29657D patent/DE406778C/en not_active Expired
- 1920-10-26 DK DK28409D patent/DK28409C/en active
- 1920-11-05 AT AT104117D patent/AT104117B/en active
- 1920-11-15 DK DK28879D patent/DK28879C/en active
- 1920-12-01 CH CH91090D patent/CH91090A/en unknown
- 1920-12-10 FR FR528373A patent/FR528373A/en not_active Expired
-
1921
- 1921-01-03 GB GB157/21A patent/GB156215A/en not_active Expired
- 1921-01-05 GB GB457/21A patent/GB156540A/en not_active Expired
- 1921-06-08 AT AT104118D patent/AT104118B/en active
- 1921-06-15 CH CH97788D patent/CH97788A/en unknown
- 1921-07-01 GB GB17963/21A patent/GB169145A/en not_active Expired
- 1921-07-07 DK DK29653D patent/DK29653C/en active
Also Published As
Publication number | Publication date |
---|---|
GB169145A (en) | 1922-05-04 |
FR528373A (en) | 1921-11-10 |
GB156540A (en) | 1922-03-30 |
AT101322B (en) | 1925-10-26 |
DE406778C (en) | 1924-12-01 |
CH84262A (en) | 1920-03-01 |
AT104118B (en) | 1926-09-10 |
CH91090A (en) | 1921-10-01 |
AT104117B (en) | 1926-09-10 |
DK29653C (en) | 1922-05-29 |
DK28879C (en) | 1921-11-28 |
DK28409C (en) | 1921-09-12 |
DE406777C (en) | 1924-11-27 |
GB156215A (en) | 1922-03-23 |
DE406245C (en) | 1924-11-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1299628B (en) | Process for the production of pure terephthalic acid suitable for direct esterification with glycols | |
CH410002A (en) | Process for the cis / trans isomerization of tricyclic compounds | |
CH97788A (en) | Process for the production of anthraquinone and its derivatives. | |
US2312468A (en) | Production of succinic acid | |
DE1015416B (en) | Process for the chloromethylation of monoalkylated benzene hydrocarbons | |
DE2258484A1 (en) | METHOD OF PURIFYING CRUDE 2-MERCAPTOBENZTHIAZOLE | |
DE1299286B (en) | Process for reducing the air flammability of a pyrophoric catalyst | |
DE974067C (en) | Process for the production of phenols | |
DE920127C (en) | Process for the preparation of cyclohexanone oxime by oxidation of cyclohexylhydroxylamine | |
DE350494C (en) | Process for the production of high-percentage anthraquinone and its derivatives | |
AT101323B (en) | Process for the production of high-percentage antraquinone and its derivatives. | |
DE2018686C3 (en) | Process for the production of hydrogen peroxide | |
EP0039048A1 (en) | Process for the purification of polycarboxylic acids | |
DE1959621C3 (en) | Process for the production of adipic acid from 6-hydroperoxyhexanoic acid | |
AT224649B (en) | Process for the preparation of thiuram monosulfides | |
DE1593756A1 (en) | Process for the preparation of aromatic amines | |
AT10002B (en) | Process for the purification of crude anthracene with recovery of the detergent. | |
DE966502C (en) | Process for purifying caprolactam | |
DE1070603B (en) | Process for removing oxygen from carbon dioxide or gas mixtures containing carbon dioxide | |
DE1907534C3 (en) | Process for the production of terephthalic acid | |
DE2232453A1 (en) | METHOD OF SEPARATING ANTHRAQUINONE FROM THE MIXTURE OF ITS VAPOR WITH A CARRIER GAS | |
US3332990A (en) | Process for the preparation of 3, 4-dinitrobenzoic acid | |
DE1443127C3 (en) | Process for the production of fumaric acid | |
AT164508B (en) | Process for the preparation of hexachlorocyclohexanes | |
AT225684B (en) | Process for the preparation of mixtures of α, α, γ- and α, γ, γ-trimethyladipic acid |