DE2004253C - Process for the production of carbon black in the presence of additives which influence the carbon black properties - Google Patents
Process for the production of carbon black in the presence of additives which influence the carbon black propertiesInfo
- Publication number
- DE2004253C DE2004253C DE19702004253 DE2004253A DE2004253C DE 2004253 C DE2004253 C DE 2004253C DE 19702004253 DE19702004253 DE 19702004253 DE 2004253 A DE2004253 A DE 2004253A DE 2004253 C DE2004253 C DE 2004253C
- Authority
- DE
- Germany
- Prior art keywords
- carbon black
- additives
- influence
- properties
- production
- 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.)
- Expired
Links
- 239000006229 carbon black Substances 0.000 title description 9
- 239000000654 additive Substances 0.000 title description 7
- 238000000034 method Methods 0.000 title description 4
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000000203 mixture Substances 0.000 description 8
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000007858 starting material Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 235000010333 potassium nitrate Nutrition 0.000 description 2
- 239000004323 potassium nitrate Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 1
- AZFNGPAYDKGCRB-XCPIVNJJSA-M [(1s,2s)-2-amino-1,2-diphenylethyl]-(4-methylphenyl)sulfonylazanide;chlororuthenium(1+);1-methyl-4-propan-2-ylbenzene Chemical compound [Ru+]Cl.CC(C)C1=CC=C(C)C=C1.C1=CC(C)=CC=C1S(=O)(=O)[N-][C@@H](C=1C=CC=CC=1)[C@@H](N)C1=CC=CC=C1 AZFNGPAYDKGCRB-XCPIVNJJSA-M 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229960002380 dibutyl phthalate Drugs 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000010289 potassium nitrite Nutrition 0.000 description 1
- 239000004304 potassium nitrite Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 235000011150 stannous chloride Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- AXZWODMDQAVCJE-UHFFFAOYSA-L tin(II) chloride (anhydrous) Chemical compound [Cl-].[Cl-].[Sn+2] AXZWODMDQAVCJE-UHFFFAOYSA-L 0.000 description 1
Description
Es ist bekannt, verschiedene Materialien in die Reaktionszone bei dem Furnace-Verfahren zur Herstellung von Ruß einzuführen. Diese Materialien werden zugesetzt, um die Eigenschaft des Rußes zu regeln und zu beeinflussen. Der Zusatz solcher fremder Materialien wird meistens durchgeführt, um die Struktur oder die Dibutylphthalatzahl des Rußes zu beeinflussen. Meistens enthalten diese Materialien, die die Struktur beeinflussen, ein Alkalimetall in Form einer chemischen Verbindung, das mindestens eine Atomnummer von 19 besitzt. Zu den Zusatzstoffen, die am wirkungsvollsten sind, zählen Natriumnitrat, Natriumnitrit und Kaliumnitrat und Kaliumnitrit und Mischungen davon, die in festem oder flüssigem Zustand in irgendeinem der Reaktionsteilnehmer gelöst oder suspendiert, die in die Reaktionszone eingeführt werden.It is known to introduce various materials into the reaction zone in the furnace process for producing carbon black. These materials are added in order to regulate and influence the properties of the carbon black. The addition of such foreign materials is mostly carried out in order to influence the structure or the dibutylphthalate number of the carbon black. Most often these materials that affect the structure contain an alkali metal in the form of a chemical compound that has at least an atomic number of 19. The additives that are most effective include sodium nitrate, sodium nitrite and potassium nitrate and potassium nitrite and mixtures thereof which are dissolved or suspended in solid or liquid state in any of the reactants introduced into the reaction zone.
<NichtLesbar>
<nonreadable>
Nach der britischen Patentschrift 911 330 können Alkaliverbindungen auch in Form ihrer Hydroxyde in die Reaktionszone eingeführt werden. Aus der deutschen Auslegeschrift 1 220 540 ist die Zugabe von Zinn enthaltenden Substanzen bekannt.According to British Patent 911 330, alkali compounds can also be introduced into the reaction zone in the form of their hydroxides. The addition of tin-containing substances is known from German Auslegeschrift 1 220 540.
Aus diesen Patentschriften jedoch ergibt sich in keiner Weise die erfindungsgemäße Lösung des vorhandenen Problems. Dieses Problem besteht darin, dass sich die bekannten Zusatzstoffe oft auf den Düsen der Rußfen abscheiden und dass dadurch die bereits beschriebenen Schwierigkeiten auftreten.However, in no way does the present invention provide a solution to the existing problem from these patents. This problem is that the known additives are often deposited on the nozzles of the soot and that the difficulties already described arise as a result.
Die Erfindung betrifft nun ein Verfahren zur Herstellung von Ruß durch thermische Zersetzung eines Kohlenwasserstoffausgangsmaterials, wobei das Ausgangsmaterial auf eine Temperatur im Bereich von135 bis 315°C vorerhitzt wird und Zusätze zu dem Ausgangsmaterial zugegeben werden, um eine oder mehrere Eigenschaften des Rußes einzustellen und zu regulieren, das dadurch gekennzeichnet ist, dass als Zusatz eine Mischung eingesetzt wird, die mindestens zwei Bestandteile enthält und einen Schmelzpunkt besitzt, der niedriger ist als der Schmelzpunkt jeder ihrer Bestandteile und niedriger als die Vorwärmtemperatur des Ausgangsmaterials und wobei dieThe invention now relates to a process for the production of carbon black by thermal decomposition of a hydrocarbon starting material, wherein the starting material is preheated to a temperature in the range from 135 to 315 ° C and additives are added to the starting material in order to adjust and regulate one or more properties of the carbon black , which is characterized in that a mixture is used as an additive which contains at least two components and has a melting point which is lower than the melting point of each of its components and lower than the preheating temperature of the starting material and wherein the
Mischung in die Reaktionszone bei einer Temperatur oberhalb ihres Schmelzpunktes eingeführt wird.Mixture is introduced into the reaction zone at a temperature above its melting point.
<NichtLesbar>
<nonreadable>
Diese Ergebnisse zeigen die Durchführbarkeit des erfindungsgemäßen Verfahrens und seine Wirksamkeit, indem es den Betrieb bei einer niedrigen Vorerhitzungstemperatur des Ausgangsöles erlaubt, bei der sonst Zersetzung des Salzes und damit Verstopfung der Düse für das Ausgangsmaterialöl auftreten würde. Die Mischung des Zusatzstoffes kann ebenfalls als wässrige Lösung zugefügt werden.These results show the feasibility of the method according to the invention and its effectiveness in that it allows operation at a low preheating temperature of the starting oil, at which otherwise decomposition of the salt and thus clogging of the nozzle for the starting material oil would occur. The mixture of the additive can also be added as an aqueous solution.
Claims (1)
<NichtLesbar>
<nonreadable>
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US79567969A | 1969-01-31 | 1969-01-31 | |
| US79567969 | 1969-01-31 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2004253A1 DE2004253A1 (en) | 1970-08-06 |
| DE2004253B2 DE2004253B2 (en) | 1973-02-01 |
| DE2004253C true DE2004253C (en) | 1973-09-06 |
Family
ID=
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB911330A (en) | 1959-08-07 | 1962-11-21 | Columbian Carbon | Improvements in manufacture of carbon black |
| DE1220540B (en) | 1961-08-09 | 1966-07-07 | Cabot Corp | Process for the production of carbon black |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB911330A (en) | 1959-08-07 | 1962-11-21 | Columbian Carbon | Improvements in manufacture of carbon black |
| DE1220540B (en) | 1961-08-09 | 1966-07-07 | Cabot Corp | Process for the production of carbon black |
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