DE263292C - - Google Patents
Info
- Publication number
- DE263292C DE263292C DENDAT263292D DE263292DA DE263292C DE 263292 C DE263292 C DE 263292C DE NDAT263292 D DENDAT263292 D DE NDAT263292D DE 263292D A DE263292D A DE 263292DA DE 263292 C DE263292 C DE 263292C
- Authority
- DE
- Germany
- Prior art keywords
- oxidizing agents
- carbon blacks
- carbon
- properties
- soot
- 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
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 5
- 235000019241 carbon black Nutrition 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- KRVSOGSZCMJSLX-UHFFFAOYSA-L Chromic acid Chemical compound O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N Hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N Manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K Iron(III) chloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NPDODHDPVPPRDJ-UHFFFAOYSA-N permanganate Chemical compound [O-][Mn](=O)(=O)=O NPDODHDPVPPRDJ-UHFFFAOYSA-N 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-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
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/56—Treatment of carbon black ; Purification
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/56—Treatment of carbon black ; Purification
- C09C1/565—Treatment of carbon black ; Purification comprising an oxidative treatment with oxygen, ozone or oxygenated compounds, e.g. when such treatment occurs in a region of the furnace next to the carbon black generating reaction zone
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
:.— JV* 263292 KLASSE 22/. GRUPPE : .— JV * 263292 CLASS 22 /. GROUP
Die zur Herstellung von Druckfarben undThe production of printing inks and
für verschiedene andere Zwecke dienenden Ruße zeigen, einerlei auf welchem Wege sie hergestellt sind, häufig allerhand unangenehme Eigenschaften. Die einen besitzen keinen hinreichend dunklen Ton, andere zeigen, wenn sie mit Firniß angerieben undcarbon blacks used for various other purposes, regardless of the way in which they are used are manufactured, often all sorts of unpleasant properties. Own one not a dark enough tone, others show when rubbed with varnish and
; in dünnen Schichten aufgestrichen werden, bläuliche oder sonstige Anlauffarben. Wieder; be painted on in thin layers, bluish or other tarnish colors. Again
ίο andere lassen sich überhaupt nur schwer mit Firnis mischen und bilden dabei dickflüssige, namentlich zum Drucken wenig geeignete Massen usw. Manche von ihnen besitzen gleichzeitig mehrere dieser ihre Verwendung erschwerenden Eigenschaften.ίο others are difficult to get along with at all Mix the varnish and form viscous ones, especially not very suitable for printing Masses, etc. Some of them have several of these uses at the same time aggravating properties.
Die fraglichen Mangel haben wahrscheinlich ihren Grund darin, daß bei den gebräuchlichen Methoden zur Rußherstellung nicht reiner Kohlenstoff erhalten wird, sondern daneben Verbindungen, des Kohlenstoffs von nicht näher bekannter Art entstehen, sei es durch Polymerisation der Ausgangsmaterialien oder auf anderem Wege, von denen wie es scheint, schon äußerst geringe Mengen genügen, um die erwähnten üblen Eigenschaften des Rußes zu veranlassen. Wenigstens zeigen manche Ruße solche Eigenschaften, ohne daß ein quantitativer Nachweis von Fremdsubstanzen bei ihnen möglich wäre.The deficiencies in question are probably due to the fact that the common Methods for soot production not pure carbon is obtained, but next to it Compounds of carbon of an unspecified kind arise, be it through Polymerization of the starting materials or by other means of which it appears even extremely small amounts are sufficient to remove the aforementioned bad properties of soot to cause. At least some carbon blacks show such properties without a quantitative detection of foreign substances would be possible with them.
Man hat vielfach versucht, derarärtige Ruße dadurch zu verbessern, daß man sie mit allerhand
in der organischen Chemie gebräuchlichen Lösungsmitteln behandelte, in der Hoffnung,
daß es gelingen würde, dadurch die in ihnen enthaltenen Fremdsubstanzen zu extrahieren. Insbesondere hat man zu diesem
Zwecke Spiritus, Benzol, Natronlauge, konzentrierte Schwefelsäure usw. verwendet und,
damit in manchen Fällen eine wenn auch nur unvollkommene Verbesserung erzielt. Den
gleichen Zweck hat man durch Calcinieren der Ruße in besonderen öfen zu erreichen
gesucht, ist aber auch bei dieser Behandlung ohne den gewünschten Erfolg geblieben.
, Bei Versuchen, eine vollkommenere Methode zur Beseitigung der störenden Fremdsubstanzen
ausfindig zu machen, wurde die Entdeckung gemacht, daß das durch die Einwirkung der
verschiedensten Oxydationsmittel möglich ist. Als besonders geeignet erwiesen sich die Hypochloryde
des Natriums und Calciums, ferner Permanganat, Chromsäure, Braunstein und
Schwefelsäure bzw. höhere Sulfate des Mangans. Aber auch andere Oxydationsmittel, wie Chlor,
Brom, Eisenchlorid usw., gaben brauchbare Resultate. Eine Zerstörung von freiem
Kohlenstoff konnte bei richtiger Anwendung der genannten und anderer Oxydationsmittel
nicht festgestellt werden.Many attempts have been made to improve such carbon blacks by treating them with all kinds of solvents commonly used in organic chemistry, in the hope that it would be possible to extract the foreign substances contained in them in this way. In particular, alcohol, benzene, caustic soda, concentrated sulfuric acid, etc., have been used for this purpose and, in some cases, an improvement, even if only imperfect, has been achieved. Attempts have been made to achieve the same purpose by calcining the carbon blacks in special ovens, but this treatment has not had the desired effect either.
In attempts to find a more perfect method of removing the troublesome foreign substances, the discovery was made that this is possible through the action of the most varied of oxidizing agents. The hypochlorite of sodium and calcium, as well as permanganate, chromic acid, manganese dioxide and sulfuric acid or higher sulphates of manganese, have proven to be particularly suitable. But other oxidizing agents, such as chlorine, bromine, ferric chloride, etc., gave useful results. A destruction of free carbon could not be determined with correct application of the mentioned and other oxidizing agents.
Die praktische Ausführung des Reinigungs-Verfahrens gestaltet sich zweckmäßig so, daßv man den Ruß mit den in hinreichendenThe practical execution of the cleaning process is expediently designed in such a way that v the soot with the in sufficient
Mengen von Wasser gelösten Oxydationsmitteln verrührt, nach beendeter Einwirkung zur Entfernung entstandener löslicher Oxydationsprodukte sowie etwaigen Überschusses von Oxydationsmitteln auswäscht, dann abfiltriert • und wieder trocknet.Stirring amounts of oxidizing agents dissolved in water, after the action has ended Removal of soluble oxidation products and any excess of Washes out oxidizing agents, then filters off • and dries again.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE263292C true DE263292C (en) |
Family
ID=520699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT263292D Active DE263292C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE263292C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2439442A (en) * | 1943-02-06 | 1948-04-13 | Cabot Godfrey L Inc | Process of making hydrophilic carbon black |
| DE1053694B (en) * | 1954-05-26 | 1959-03-26 | Cabot Godfrey L Inc | Process for the production of carbon black suitable for rubber mixtures by post-treating flaky furnace black |
| DE3214344A1 (en) * | 1981-04-17 | 1983-01-13 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | METHOD FOR PRODUCING VIDEO DISKS |
-
0
- DE DENDAT263292D patent/DE263292C/de active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2439442A (en) * | 1943-02-06 | 1948-04-13 | Cabot Godfrey L Inc | Process of making hydrophilic carbon black |
| DE1053694B (en) * | 1954-05-26 | 1959-03-26 | Cabot Godfrey L Inc | Process for the production of carbon black suitable for rubber mixtures by post-treating flaky furnace black |
| DE3214344A1 (en) * | 1981-04-17 | 1983-01-13 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | METHOD FOR PRODUCING VIDEO DISKS |
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