DE574535C - Process for bleaching cleavage and conversion products of montan wax - Google Patents
Process for bleaching cleavage and conversion products of montan waxInfo
- Publication number
- DE574535C DE574535C DER70789D DER0070789D DE574535C DE 574535 C DE574535 C DE 574535C DE R70789 D DER70789 D DE R70789D DE R0070789 D DER0070789 D DE R0070789D DE 574535 C DE574535 C DE 574535C
- Authority
- DE
- Germany
- Prior art keywords
- montan wax
- cleavage
- bleaching
- conversion products
- wax
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G73/00—Recovery or refining of mineral waxes, e.g. montan wax
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
Description
Verfahren zum Bleichen von Spalt- und Umwandlungsprodukten des Montanwachses In der Patentschrift 493 953 ist ein Verfahren beschrieben, nach welchem rohes, entharztes oder in anderer Weise vorgereinigtes Montanwachs durch Behandlung mit Oxydationsmitteln in Gegenwart von verdünnter Schwefelsäure gebleicht werden kann.Process for bleaching cleavage and conversion products of montan wax In the patent specification 493 953 a process is described, according to which raw, Montan wax that has been de-treated or otherwise pre-cleaned by treatment with Oxidizing agents can be bleached in the presence of dilute sulfuric acid.
Es wurde nun gefunden, daB sich nach diesem Verfahren nicht allein das Montanwachs bleichen läßt, sondern daß auch die durch Spaltung, vorzugsweise mit Alkalien, aus dem Montanwachs erhaltenen sauren oder neutraten Produkte sowie die Derivate und Umwandlungsprodukte dieser Stoffe, wie des Montanwachses selbst, beispielsweise chloriertes Montanwachs oder Umesterungsprodukte, auf dieselbe Weise gebleicht werden können.It has now been found that this procedure is not alone the montan wax bleaches, but also that by splitting, preferably with alkalis, acidic or neutral products obtained from montan wax, as well as the derivatives and conversion products of these substances, such as the montan wax itself, for example chlorinated montan wax or transesterification products, in the same way can be bleached.
Unter Umwandlungsprodukten wird das durch Verseifung gewonnene. Gemisch der Wachssäuren und Wachsalkohole nicht. verstanden.Conversion products are those obtained by saponification. mixture the wax acids and wax alcohols do not. Understood.
Die Behandlung der au§ Rohmontanwachs durch Verseifung gewonnenen Wachsalkohole mit Oxydationsmitteln ist bekannt und wird in dem vorliegenden Verfahren nicht beansprucht. Beispiele a. Chloriertes Montanwachs wird mit der gleichen Menge Natriumbichromat in konzentrierter wässeriger Lösung versetzt, worauf man so viel verdünnte Schwefelsäure zutropfen läBt, daB nach und nach die gesamte Chromsäure in Freiheit gesetzt wird. Ein ÜberschuB an verdünnter Säure beschleunigt den Verlauf der Oxydation. Nach beendeter Oxydation wird das Wachs abgetrennt, mit Wasser und verdünnter Säure behandelt und getrocknet. Die Farbe des Reaktionsproduktes ist wesentlich heller -als die des Ausgangsmaterials.The treatment of raw montan wax obtained by saponification Wax alcohols with oxidizing agents are known and are used in the present process unclaimed. Examples a. Chlorinated montan wax is made with the same amount Sodium dichromate is added to a concentrated aqueous solution, whereupon you get so much Dilute sulfuric acid can be added dropwise, so that gradually all of the chromic acid is added is set free. An excess of dilute acid accelerates the process of oxidation. When the oxidation is complete, the wax is separated off with water and treated with dilute acid and dried. The color of the reaction product is much lighter than that of the original material.
In gleicher Weise lassen sich mit Salpetersäure vorbehandelte Wachse weiter aufhellen. z. Rohmontanwachs wird mit Alkalien verseift und das Unverseifbare durch Behandlung mit flüchtigen Lösungsmitteln abgetrennt. Die abgeschiedene Substanz ist eine wachsgelbe Masse vom Schmelzpunkt 77°, die sich in bekannter Weise durch Behandlung mit Oxydationsmitteln weiter reinigen läBt. Die durch Zerlegung der Seifen mit Mineralsäuren erhaltenen schwarzbraunen Fettsäuren lassen sich durch die in, der Patentschrift 493 953 beschriebene Behandlung mit einem Gemisch von. Chromsäure undSchwefelsäure in einer Ausbeute von über 9o °/a in hellgelbe Produkte verwandeln, deren Schmelzpunkte, je nach der angewandten Menge des Oxydationsmittels, zwischen 8o bis 85° liegen und deren Verseifungszahlen I4o bis 16o betragen.Waxes pretreated with nitric acid can be used in the same way further lighten. z. Raw montan wax is saponified with alkalis and the unsaponifiable separated by treatment with volatile solvents. The deposited substance is a waxy yellow mass with a melting point of 77 °, which is characterized in a known manner by Treatment with oxidizing agents allows further cleaning. By Breaking down the soaps with mineral acids leave the black-brown fatty acids obtained by the treatment with a mixture described in the patent specification 493 953 from. Chromic acid and sulfuric acid in a yield of over 90 ° / a in light yellow Transform products whose melting points, depending on the amount of oxidizing agent used, lie between 8o and 85 ° and their saponification numbers are 14o to 16o.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER70789D DE574535C (en) | 1927-04-05 | 1927-04-05 | Process for bleaching cleavage and conversion products of montan wax |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER70789D DE574535C (en) | 1927-04-05 | 1927-04-05 | Process for bleaching cleavage and conversion products of montan wax |
Publications (1)
Publication Number | Publication Date |
---|---|
DE574535C true DE574535C (en) | 1933-04-20 |
Family
ID=7413973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DER70789D Expired DE574535C (en) | 1927-04-05 | 1927-04-05 | Process for bleaching cleavage and conversion products of montan wax |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE574535C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE740295C (en) * | 1940-11-27 | 1943-10-16 | Ig Farbenindustrie Ag | Process for cleaning de-treated montan wax |
-
1927
- 1927-04-05 DE DER70789D patent/DE574535C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE740295C (en) * | 1940-11-27 | 1943-10-16 | Ig Farbenindustrie Ag | Process for cleaning de-treated montan wax |
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