AT148479B - Process for increasing the viscosity of tars. - Google Patents
Process for increasing the viscosity of tars.Info
- Publication number
- AT148479B AT148479B AT148479DA AT148479B AT 148479 B AT148479 B AT 148479B AT 148479D A AT148479D A AT 148479DA AT 148479 B AT148479 B AT 148479B
- Authority
- AT
- Austria
- Prior art keywords
- viscosity
- tar
- seconds
- tars
- increasing
- Prior art date
Links
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- Working-Up Tar And Pitch (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
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Verfahren zur Steigerung der Viskosität von Teeren.
Gemäss dem Stammpatente Nr. 144908 ist es möglich, die Viskosität von Teeren durch Zusatz von organischen Sulfonsäurechloriden zu erhöhen.
Es hat sich nun gezeigt, dass die nämliche, ja sogar noch eine günstigere Wirkung durch Verwendung von organischen Nitrosulfonsäurechloriden in Mengen unter 5% zu erzielen ist.
Beispiel 1 : Im Steinkohlenrohteer wird vor Beginn der Destillation 1% o-Nitrochlorbenzol- sulfonsäurechlorid gelöst und dann destilliert. Bei gleicher Destillatmenge und Temperatur ergibt der Rohteer ohne Zusatz in derselben Zeit einen destillierten Teer von etwa 35 sec. Viskosität, der mit 1% o-Nitrochlorbenzolsulfonsäurechlorid destillierte Teer dagegen hat eine Viskosität von etwa 200 see.
Die Viskositäten wurden im Teerconsistometer bei 30 , 10 mm Ausflussöffnung, bestimmt.
Beispiel 2 : In einem destillierten Teer von 40 sec. Viskosität wird 1% o-Nitrochlorbenzol- sulfonsäurechlorid gelöst und der Teer 24 Stunden bei einer Temperatur von 110 bis 1200 am Rück- flusskühler gerührt. In der gleichen Weise wurde der destillierte Teer ohne Zusatz behandelt ; seine Viskosität nach dieser Zeit betrug etwa 80 sec., dagegen diejenige des Teeres mit 1% o-Nitrochlor- benzolsulfonsäurechlorid etwa 600 sec.
Eine ähnliche Wirkung wird erzielt mit 1% Nitrochlortoluolsulfonsäurechlorid.
Beispiel 3 : Ein destillierter Teer von etwa 30 sec. Viskosität wird mit 1% Nitronaphthalin- sulfonsäurechlorid in derselben Weise wie in Beispiel 2 behandelt ; die Viskosität nach 24 Stunden beträgt etwa 150 sec., wogegen diejenige des Teeres ohne Zusatz nur etwa 60 sec. ist.
Beispiel 4 : Derselbe Teer wie in Beispiel 3 mit 2% Nitronaphthalinsulfonsäurechlorid ergibt unter gleichen Bedingungen einen Teer von 300 sec. Viskosität.
Beispiel 5 : Ein dünnflüssiger Holzteer von 2 sec. Viskosität hat nach 24stündigem Erhitzen und Umrühren auf 110-120 am Rückflussrühler eine Viskosität von 4 sec., mit 1% o-Nitrochlor- benzolsulfonsäurechlorid dagegen eine solche von etwa 30 sec.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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Process for increasing the viscosity of tars.
According to the parent patent No. 144908, it is possible to increase the viscosity of tars by adding organic sulfonic acid chlorides.
It has now been shown that the same, and even more favorable, effect can be achieved by using organic nitrosulfonic acid chlorides in amounts below 5%.
Example 1: Before the start of the distillation, 1% o-nitrochlorobenzenesulfonic acid chloride is dissolved in the crude coal tar and then distilled. With the same amount of distillate and temperature, the raw tar without addition gives a distilled tar of about 35 seconds viscosity in the same time, whereas the tar distilled with 1% o-nitrochlorobenzenesulfonyl chloride has a viscosity of about 200 seconds.
The viscosities were determined in a tar consistometer at a 30, 10 mm orifice.
Example 2: 1% o-nitrochlorobenzenesulfonic acid chloride is dissolved in a distilled tar with a viscosity of 40 seconds and the tar is stirred for 24 hours at a temperature of 110 to 1200 on a reflux condenser. The distilled tar was treated in the same way without additive; its viscosity after this time was about 80 seconds, on the other hand that of the tar with 1% o-nitrochlorobenzenesulfonic acid chloride was about 600 seconds.
A similar effect is achieved with 1% nitrochlorotoluenesulfonic acid chloride.
Example 3: A distilled tar with a viscosity of about 30 seconds is treated with 1% nitronaphthalene sulfonic acid chloride in the same way as in Example 2; the viscosity after 24 hours is about 150 seconds, whereas that of the tar without addition is only about 60 seconds.
Example 4: The same tar as in Example 3 with 2% nitronaphthalenesulfonic acid chloride gives a tar of 300 seconds viscosity under the same conditions.
Example 5: A thin wood tar with a viscosity of 2 seconds has a viscosity of 4 seconds after heating for 24 hours and stirring to 110-120 on the reflux condenser, whereas with 1% o-nitrochlorobenzenesulfonic acid chloride it is about 30 seconds.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE144908X | 1934-05-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT148479B true AT148479B (en) | 1937-01-25 |
Family
ID=5670474
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT144908D AT144908B (en) | 1934-05-16 | 1935-05-14 | Process for increasing the viscosity of tars. |
AT148479D AT148479B (en) | 1934-05-16 | 1935-05-14 | Process for increasing the viscosity of tars. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT144908D AT144908B (en) | 1934-05-16 | 1935-05-14 | Process for increasing the viscosity of tars. |
Country Status (1)
Country | Link |
---|---|
AT (2) | AT144908B (en) |
-
1935
- 1935-05-14 AT AT144908D patent/AT144908B/en active
- 1935-05-14 AT AT148479D patent/AT148479B/en active
Also Published As
Publication number | Publication date |
---|---|
AT144908B (en) | 1936-03-10 |
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